Dr Alistair McEwan

BE/BComm MEng(Res), Sydney, Australia. PhD, Oxford, UK. MIEEE
Senior Lecturer
School of Electrical and Information Engineering

J03 - Electrical Engineering Building
The University of Sydney

Telephone +61 2 9351 7256

Website School of Electrical & Information Engineering

CARlab

Research interests

Dr Alistair McEwan's research into the electrical properties of biological tissue will enable us to better address a range of major health challenges relating to cardiovascular disease, cancer and nutrition.

"My research aims to lead to the development of new devices to improve diagnosis and treatment of health problems.

"Understanding the influence of the electrical properties of the body can enable us to learn more about neural and cell signalling, leading to better design of electronic implants and ultimately a better understanding of how the brain works.

"I am passionate about this area of research, as I believe it can lead to new diagnosis techniques, particularly in the area of low-cost devices for home health care, which will help to alleviate the incredible economic strain of the current healthcare system.

"I have had several enquiries from family members of stroke sufferers about the availability of a portable device for stroke. Clinicians in cardiology, neurology, cancer, respiration and newborn care have also indicated that they would find the devices we are working on very useful in a range of clinical and public health scenarios. As well as this, there has been interest from the Bill and Melinda Gates Foundation in our device for measuring newborn malnutrition in developing countries. All of this interest indicates that there is a real clinical need for the kind of devices we are working to develop.

"I have been working in this field for eight years, the past three of which have been at the University of Sydney. The faculty's interest in biomedical engineering, along with the size, expertise and interest of the Sydney Medical School, has enabled me to identify and pursue research projects of real clinical need."

Teaching and supervision

ELEC3404 - Electronic Circuit Design

ELEC3802 - Fundamentals of Biomedical Engineering

ELEC3803 - Bioelectronics

ELEC5737 - Foundations of Electronic Circuit Design

In the media

  • Measuring baby fat [6 November 2014]

    University of Sydney

    Device with potential to save millions of children's lives receives phase two funding from Gates Foundation.... More...

Selected grants

2015

  • Active electrodes for bio-signal monitoring immune to interference for cardiology and neurology; Aiello O, McEwan A; DVC Research/International Research Collaboration Award (IRCA).

2014

  • Low cost body composition measurement for nutrition assessment; McEwan A; Bill & Melinda Gates Foundation/Grand Challenges Explorations.
  • Pilot Efficacy Trial of Electrical Stimulation Cycling Exercise for Advanced Multiple Sclerosis; Fornusek C, Burns J, McEwan A, Hoang P; Multiple Sclerosis Research Australia/Incubator Grant.

2013

  • ATVRE - Assistive Technologies for Virtual Rehabilitation Engineering; Feng D, Dehghani F, Dunstan C, Jin C, Kim J, Li Q, McEwan A, Ruys A, Brooker G, Buckley T, Cai T, Davis G, Fornusek C, Fulham M, Khadra M, Mohamed A, Murray G, Peck C, Vucetic B, Weiss A; DVC Research/Research Network Scheme (SyReNS).
  • nanoIR - nanoscale bioimaging with continuous mapping of chemical and physical properties; Gomes V, Dehghani F, Gan Y, Chang L, Jabbarzadeh-Khoei A, McKenzie D, Hanaor D, Zhou F, Chrzanowski W, Braet F, Bilek M, Chan H, Perrier S, O'Neill G, Ammit A, Brand-Miller J, McEwan A, Hawkett B, Kondyurin A, Li Q, Burgess J, Li Z; National Health and Medical Research Council (NHMRC)/Equipment Grants.
  • Dynamic wavefront shaping development; McEwan A; DVC Research/Bridging Support Grant.

2012

  • Malnutrition and body composition assessment for under $1; McEwan A; Bill & Melinda Gates Foundation/Research Support.

2011

  • Microsoft Faculty Fellowship; McEwan A; Microsoft Research Asia (China)/Research Support.
  • Carbon nanotube based electrodes for rapid, dry electro-physiological measurements; McEwan A, Harris A; Australian Research Council (ARC)/Linkage Projects (LP).
  • Individually addressable, active, multipoint electrodes for bio-potential recording and electrical impedance imaging.; McEwan A; Australian Research Council (ARC)/Discovery Projects (DP).
  • International Biomedical Engineering and Bioelectronics Workshop; McEwan A; DVC International/IPDF Grant.

2009

  • Inverse eigenvalue analysis for auditory systems and CMOS circuits for multiple frequency synthesis; McEwan A, Choubey B; DVC Research/International Visiting Research Fellowship (IVRF).

2007

  • Electrical impedance tonography spectroscopy for classification of acute stroke; University of Sydney/International Visiting Research Fellowship (IVRF).

Selected publications

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Edited Books

  • Gargiulo, G., McEwan, A. (2011). Advanced Biomedical Engineering. Rijeka, Croatia: InTech Open Access Publishers (peer reviewed).
  • Gargiulo, G., McEwan, A. (2011). Applied Biomedical Engineering. Rijeka, Croatia: InTech Open Access Publishers (peer reviewed).

Book Chapters

  • Gargiulo, G., Bifulco, P., Calvo, R., Romano, M., Ruffo, M., Shephard, R., Cesarelli, M., Jin, C., McEwan, A., Van Schaik, F. (2012). Giga-Ohm High-Impedance FET Input Amplifiers for Dry Electrode Biosensor Circuits and Systems. In Krzysztof Iniewski (Eds.), Integrated Microsystems: Electronics, Photonics, and Biotechnology, (pp. 165-194). Boca Raton, FL, United States of America: CRC Press.
  • Fabrizi, L., Horesh, L., Perez-Juste Abascal, J., McEwan, A., Gilad, O., Bayford, R., Holder, D. (2011). Determination of Optimal Parameters and Feasibility for Imaging of Epileptic Seizures by Electrical Impedance Tomography: A Modelling Study Using a Realistic Finite Element Model of the Head. In Gaetano D. Gargiulo, Alistair McEwan (Eds.), Applied Biomedical Engineering, (pp. 459-480). Rijeka, Croatia: InTech Open Access Publishers (peer reviewed).
  • Ruffo, M., Cesarelli, M., Jin, C., Gargiulo, G., McEwan, A., Sullivan, C., Bifulco, P., Romano, M., Shephard, R., Van Schaik, F. (2011). Non-Invasive Foetal Monitoring with Combined ECG - PCG System. In Anthony N Laskovski (Eds.), Biomedical Engineering, Trends in Electronics, Communications and Software, (pp. 347-366). Croatia: InTech Open Access Publishers (peer reviewed).
  • Gargiulo, G., Bifulco, P., Calvo, R., Cesarelli, M., Jin, C., McEwan, A., Van Schaik, F. (2010). Non-invasive Electronic Biosensor Circuits and Systems. In Vernon S. Somerset (Eds.), Intelligent and Biosensors, (pp. 123-146). Olajnica 19/2, 32000 Vukovar, Croatia: InTech Open Access Publishers (peer reviewed).
  • Gargiulo, G., Bifulco, P., Cesarelli, M., Jin, C., McEwan, A., Van Schaik, F. (2010). Wearable Dry Sensors with Bluetooth Connection for Use in Remote Patient Monitoring Systems. In Anthony C Smith, Anthony J Maeder (Eds.), Global Telehealth: Selected Papers from Global Telehealth 2010 (GT2010), (pp. 57-65). Amsterdam, Netherlands: IOS Press.

Journals

  • Wi, H., Sohal, H., McEwan, A., Woo, E., Oh, T. (2014). Multi-Frequency Electrical Impedance Tomography System With Automatic Self-Calibration for Long-Term Monitoring. IEEE Transactions on Biomedical Circuits and Systems, 8(1), 119-128. [More Information]
  • Kwon, H., McEwan, A., Oh, T., Farooq, A., Woo, E., Seo, J. (2013). A Local Region of Interest Imaging Method for Electrical Impedance Tomography with Internal Electrodes. Computational and Mathematical Methods in Medicine, 2013, 1-9. [More Information]
  • Baeg, J., Wi, H., Oh, T., McEwan, A., Woo, E. (2013). An Amplitude-to-Time Conversion Technique Suitable for Multichannel Data Acquisition and Bioimpedance Imaging. IEEE Transactions on Biomedical Circuits and Systems, 7(3), 349-354. [More Information]
  • Polisiero, M., Bifulco, P., Liccardo, A., Cesarelli, M., Romano, M., Gargiulo, G., McEwan, A., D’Apuzzo, M. (2013). Design and assessment of a low-cost, electromyographically controlled, prosthetic hand. Medical Devices: Evidence and Research, 6(1), 97-104. [More Information]
  • Nguyen, D., Kosobrodov, R., Barry, M., Chik, W., Jin, C., Oh, T., Thiagalingam, A., McEwan, A. (2013). Electrode-skin contact impedance: In vivo measurements on an ovine model. Journal of Physics: Conference Series, 434(1), 1-4. [More Information]
  • Oh, T., Jeong, W., McEwan, A., Park, H., Kim, H., Kwon, O., Woo, E. (2013). Feasibility of Magnetic Resonance Electrical Impedance Tomography (MREIT) Conductivity Imaging to Evaluate Brain Abscess Lesion: In vivo Canine Model. Journal of Magnetic Resonance Imaging, 38(1), 189-197. [More Information]
  • Chik, W., Barry, M., Thavapalachandran, S., Midekin, C., Pouliopoulos, J., Lim, T., Sivagangabalan, G., Thomas, S., Ross, D., McEwan, A., Kovoor, P., Thiagalingam, A. (2013). High Spatial Resolution Thermal Mapping of Radiofrequency Ablation Lesions Using a Novel Thermochromic Liquid Crystal Myocardial Phantom. Journal of Cardiovascular Electrophysiology, 24(11), 1278-1286. [More Information]
  • Bifulco, P., Massa, R., Cesarelli, M., Romano, M., Fratini, A., Gargiulo, G., McEwan, A. (2013). Investigating the role of capacitive coupling between the operating table and the return electrode of an electrosurgery unit in the modification of the current density distribution within the patients’ body. BioMedical Engineering OnLine, 12(1), 1-12. [More Information]
  • Nguyen, D., Kosobrodov, R., Barry, M., Chik, W., Pouliopoulos, J., Oh, T., Thiagalingam, A., McEwan, A. (2013). Preliminary results on different impedance contrast agents for pulmonary perfusion imaging with electrical impedance tomography. Journal of Physics: Conference Series, 434(1), 1-4. [More Information]
  • Gargiulo, G., McEwan, A., Bifulco, P., Cesarelli, M., Jin, C., Tapson, J., Thiagalingam, A., van Schaik, A. (2013). Towards true unipolar bio-potential recording: A preliminary result for ECG. Physiological Measurement, 34(1), N1-N7. [More Information]
  • Gargiulo, G., McEwan, A., Bifulco, P., Cesarelli, M., Jin, C., Tapson, J., Thiagalingam, A., van Schaik, A. (2013). Towards true unipolar ECG recording without the Wilson central terminal (preliminary results). Physiological Measurement, 34(9), 991-1012. [More Information]
  • Nguyen, D., Jin, C., Thiagalingam, A., McEwan, A. (2012). A review on electrical impedance tomography for pulmonary perfusion imaging. Physiological Measurement, 33(5), 695-706. [More Information]
  • Gargiulo, G., Cohen, G., McEwan, A., Oh, T., Mohamed, A., Tapson, J., Nguyen, D., van Schaik, A., Wabnitz, A. (2012). Active electrode design suitable for simultaneous EIT and EEG. Electronics Letters, 48(25), 1583-1584. [More Information]
  • Kwon, H., Wi, H., Karki, B., Lee, E., McEwan, A., Woo, E., Harrach, B., Seo, J., Oh, T. (2012). Bioimpedance spectroscopy tensor probe for anisotropic measurements. Electronics Letters, 48(20), 1253-1255. [More Information]
  • Packham, B., Koo, H., Romsauerova, A., Ahn, S., McEwan, A., Jun, S., Holder, D. (2012). Comparison of frequency difference reconstruction algorithms for the detection of acute stroke using EIT in a realistic head-shaped tank. Physiological Measurement, 33(5), 767-785. [More Information]
  • Khamis, H., Mohamed, A., Simpson, S., McEwan, A. (2012). Detection of temporal lobe seizures and identification of lateralisation from audified EEG. Clinical Neurophysiology, 123(9), 1714-1720. [More Information]
  • Cardu, R., Leong, P., Jin, C., McEwan, A. (2012). Electrode contact impedance sensitivity to variations in geometry. Physiological Measurement, 33(5), 817-830. [More Information]
  • Nasehi Tehrani, J., Oh, T., Jin, C., Thiagalingam, A., McEwan, A. (2012). Evaluation of different stimulation and measurement patterns based on internal electrode: Application in cardiac impedance tomography. Computers in Biology and Medicine, 42(11), 1122-1132. [More Information]
  • Ang, C., McEwan, A., van Schaik, A., Jin, C., Leong, P. (2012). FPGA implementation of biologically-inspired auto-associative memory. Electronics Letters, 48(3), 148-149. [More Information]
  • Zhao, M., Wi, H., Kamal, A., McEwan, A., Woo, E., Oh, T. (2012). High density trans-admittance mammography development and preliminary phantom tests. BioMedical Engineering OnLine, 11, 1-16. [More Information]
  • Gargiulo, G., Mohamed, A., McEwan, A., Bifulco, P., Cesarelli, M., Jin, C., Ruffo, M., Tapson, J., van Schaik, A. (2012). Investigating the role of combined acoustic-visual feedback in one-dimensional synchronous brain computer interfaces, a preliminary study. Medical Devices: Evidence and Research, 5, 81-88. [More Information]
  • Nasehi Tehrani, J., McEwan, A., Jin, C., van Schaik, A. (2012). L1 regularization method in electrical impedance tomography by using the L1-curve (Pareto frontier curve). Applied Mathematical Modelling, 36(3), 1095-1105. [More Information]
  • Nasehi Tehrani, J., Jin, C., McEwan, A. (2012). Modelling of an oesophageal electrode for cardiac function tomography. Computational and Mathematical Methods in Medicine, 2012, 1-10. [More Information]
  • Wang, C., Kim, J., Jin, C., Leong, P., McEwan, A. (2012). Near infrared spectroscopy in optical coherence tomography. Journal of Near Infrared Spectroscopy, 20(1), 237-247. [More Information]
  • Mohamadou, Y., Oh, T., Wi, H., Sohal, H., Farooq, A., Woo, E., McEwan, A. (2012). Performance evaluation of wideband bio-impedance spectroscopy using constant voltage source and constant current source. Measurement Science and Technology, 23(10), 1-10. [More Information]
  • Gargiulo, G., Shephard, R., Tapson, J., McEwan, A., Bifulco, P., Cesarelli, M., Jin, C., Al-Ani, A., Wang, N., van Schaik, A. (2012). Pregnancy detection and monitoring in cattle via combined foetus electrocardiogram and phonocardiogram signal processing. BMC Veterinary research, 8, 1-10. [More Information]
  • Wang, L., Ahad, M., McEwan, A., Li, J., Jafarpoor, M., Rutkove, S. (2011). Assessment of Alterations in the Electrical Impedance of Muscle After Experimental Nerve Injury via Finite-Element Analysis. I E E E Transactions on Biomedical Engineering, 58(6), 1585-1591. [More Information]
  • Fabrizi, L., Yerworth, R., McEwan, A., Gilad, O., Bayford, R., Holder, D. (2010). A method for removing artefacts from continuous EEG recordings during functional electrical impedance tomography for the detection of epileptic seizures. Physiological Measurement, 31(8), S57-S72. [More Information]
  • Nasehi Tehrani, J., Anderson, C., Jin, C., Van Schaik, F., Holder, D., McEwan, A. (2010). Feasibility of electrical impedance tomography in haemorrhagic stroke treatment using adaptive mesh. Journal of Physics: Conference Series, 224(012065), 1-4. [More Information]
  • McEwan, A., Tapson, J., Van Schaik, F., Holder, D. (2010). Spread Spectrum EIT by Code Division Multiplexing. Journal of Physics: Conference Series, 224(012143), 1-4. [More Information]
  • Jeganathan, S., Van Schaik, F., Jin, C., McEwan, A. (2010). Suitability of the INPHAZE impedance analyzer for Bio-impedance and EIT. Journal of Physics: Conference Series, 224(012014), 1-4. [More Information]
  • Fabrizi, L., McEwan, A., Oh, T., Woo, E., Holder, D. (2009). A comparison of two EIT systems suitable for imaging impedance changes in epilepsy. Physiological Measurement, 30(6), S103-S120. [More Information]
  • Fabrizi, L., McEwan, A., Oh, T., Woo, E., Holder, D. (2009). An electrode addressing protocol for imaging brain function with electrical impedance tomography using a 16-channel semi-parallel system. Physiological Measurement, 30(6), S85-S101. [More Information]
  • McEwan, A., Tapson, J., Van Schaik, F., Holder, D. (2009). Code-division-multiplexed electrical impedance tomography spectroscopy. IEEE Transactions on Biomedical Circuits and Systems, 3(5), 332-338. [More Information]
  • McEwan, A., Cusick, G., Holder, D. (2007). A review of errors in multi-frequency EIT instrumentation. Physiological Measurement, 28(7, Article number S15), S197-S215. [More Information]
  • Fabrizi, L., McEwan, A., Woo, E., Holder, D. (2007). Analysis of resting noise characteristics of three EIT systems in order to compare suitability for time difference imaging with scalp electrodes during epileptic seizures. Physiological Measurement, 28(7, Article number S16), S217-S236. [More Information]
  • Fabrizi, L., Horesh, L., McEwan, A., Holder, D. (2007). Estimation of signal size for imaging of epileptic seizures by electrical impedance tomography (EIT). Clinical Neurophysiology, 118(6), e183. [More Information]
  • McEwan, A., Romsauerova, A., Yerworth, R., Horesh, L., Bayford, R., Holder, D. (2006). Design and calibration of a compact multi-frequency EIT system for acute stroke imaging. Physiological Measurement, 27(5), S199-S210. [More Information]
  • McEwan, A., Collins, S. (2006). Direct Digital-Frequency Synthesis by Analog Interpolation. IEEE Transactions on Circuits and Systems. Part 2: Express Briefs, 53(11), 1294-1298. [More Information]
  • McEwan, A., Collins, S. (2006). Efficient, ROM-less DDFS using non-linear interpolation and non-linear DAC 2006. Analog Integrated Circuits and Signal Processing, 48(3), 231-237. [More Information]
  • Fabrizi, L., Sparkes, M., Horesh, L., Perez-Juste Abascal, J., McEwan, A., Bayford, R., Elwes, R., Binnie, C., Holder, D. (2006). Factors limiting the application of electrical impedance tomography for identification of regional conductivity changes using scalp electrodes during epileptic seizures in humans. Physiological Measurement, 27(5), S163-S174. [More Information]
  • Romsauerova, A., McEwan, A., Holder, D. (2006). Identification of a suitable current waveform for acute stroke imaging. Physiological Measurement, 27(5), S211-S219. [More Information]
  • Romsauerova, A., McEwan, A., Horesh, L., Yerworth, R., Bayford, R., Holder, D. (2006). Multi-frequency electrical impedance tomography (EIT) of the adult human head: initial findings in brain tumours, arteriovenous malformations and chronic stroke, development of an analysis method and calibration. Physiological Measurement, 27(5), S147-S161. [More Information]
  • McEwan, A., Van Schaik, F. (2003). An analogue VLSI implementation of the Meddis inner hair cell model. Eurasip Journal on Advances in Signal Processing, 2003 (7), 639-648. [More Information]

Conferences

  • Gargiulo, G., Tapson, J., van Schaik, A., McEwan, A., Thiagalingam, A. (2013). Unipolar ECG circuits: Towards more precise cardiac event identification. 2013 IEEE International Symposium on Circuits and Systems (ISCAS), Piscataway, NJ: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Nguyen, D., Jin, C., Thiagalingam, A., McEwan, A. (2012). A Computer Simulation Study on the Applicability of 3D Electrical Impedance Tomography for Pulmonary Perfusion Defect Imaging. World Congress on Medical Physics and Biomedical Engineering 2012, Heidelberg: Springer. [More Information]
  • Mort, P., Drury, H., Calvo, R., Skinner, I., McEwan, A., Levy, D., Garcia Molina, M., Mitrajit, R. (2012). An Online Writing Centre for Engineering Students. 2012 International CDIO Conference, Brisbane: CDIO Conference 2012.
  • Nasehi Tehrani, J., Yan, H., Zhu, M., Jin, C., McEwan, A. (2012). Measurement of Retinal Arteriolar Diameters from Auto Scale Phase Congruency with Fuzzy Weighting and L1 Regularization. 34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society EMBS 2012, Piscataway: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Wang, R., Jin, C., McEwan, A., Van Schaik, F. (2011). A programmable axonal propagation delay circuit for time-delay spiking neural networks. 2011 IEEE International Symposium on Circuits and Systems (ISCAS 2011), Piscataway, USA: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Martin, A., Jin, C., McEwan, A., Martens, W. (2011). A similarity algorithm for interactive style imitation. 2011 International Computer Music Conference (ICMC 2011), USA: The International Computer Music Association.
  • Nasehi Tehrani, J., Wang, C., Jin, C., McEwan, A., Gibbs, O., Shanehsaz, E., Barry, M., Thaigalingam, A. (2011). Edge enhancement for retinal vasculature caliber evaluation in prediction of cardiovascular disease. 2011 4th International Conference on Biomedical Engineering and Informatics (BMEI 2011), Piscataway, NJ, USA: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Wabnitz, A., Epain, N., McEwan, A., Jin, C. (2011). Upscaling Ambisonic sound scenes using compressed sensing techniques. 2011 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA 2011), Piscataway, USA: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Nasehi Tehrani, J., Chik, W., Barry, M., Thiagalingam, A., Jin, C., Van Schaik, F., Oh, T., Woo, E., McEwan, A. (2010). 3D EIT for Cardiac Function Imaging Using Internal Electrodes: Preliminary simulations and pilot results. 2010 International Workshop on MR-based Impedance Imaging (MRII'10), Korea.
  • Nasehi Tehrani, J., Jin, C., McEwan, A., Van Schaik, F. (2010). A comparison between compressed sensing algorithms in Electrical Impedance Tomography. 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS 2010), Buenos Aires, Argentina,: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Nasehi Tehrani, J., McEwan, A. (2010). A comparison between new L1 minimization algorithms in Electrical Impedance Tomography using the Pareto Curve. 17th Iranian Conference of Biomedical Engineering (ICBME 2010), Isfahan: Iranian Conference of Biomedical Engineering.
  • Van Schaik, F., Jin, C., McEwan, A., Hamilton, T. (2010). A log-domain implementation of the Izhikevich neuron model. 2010 IEEE International Symposium on Circuits and Systems ISCAS 2010, USA: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Van Schaik, F., Jin, C., McEwan, A., Hamilton, T., Mihalas, S., Niebur, E. (2010). A log-domain implementation of the Mihalas-Niebur neuron model. 2010 IEEE International Symposium on Circuits and Systems ISCAS 2010, USA: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Gargiulo, G., Bifulco, P., McEwan, A., Nasehi Tehrani, J., Calvo, R., Romano, M., Ruffo, M., Shephard, R., Cesarelli, M., Jin, C., Van Schaik, F., et al (2010). Dry electrode Bio-potential Recordings. 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS 2010), Buenos Aires, Argentina,: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Nasehi Tehrani, J., Jin, C., Van Schaik, F., McEwan, A. (2010). L1 regularization method in electrical impedance tomography by using Pareto frontier curve. 2010 International Workshop on MR-based Impedance Imaging (MRII'10), Korea.
  • Wang, R., Jin, C., McEwan, A., Van Schaik, F. (2010). Neural Network simulation using Verilog-A, a hardware description language. 4th Australian Workshop on Computational Neuroscience, Australia: Queensland Brain Institute.
  • Van Schaik, F., Brette, R., Goodman, D., Jin, C., McEwan, A. (2010). Wait for it..: Simulating axonal delay adaptation in Brian. 4th Australian Workshop on Computational Neuroscience, Australia: Queensland Brain Institute.
  • McEwan, A., Hamsch, M., Watson, S., Igney, C., Kahlert, J. (2009). A comparison of two phase measurement techniques for Magnetic Impedance Tomography. World Congress on Medical Physics and Biomedical Engineering 2009, Germany: Springer. [More Information]
  • Holder, D., Romsauerova, A., McEwan, A., Horesh, L. (2009). Electrical impedance tomography of acute stroke. 4th European Conference of the International Federation for Medical and Biological Engineering ECIFMBE 2008, Germany: Springer.
  • Fabrizi, L., McEwan, A., Oh, D., Woo, E., Holder, D. (2008). Comparison of two EIT systems suitable for imaging impedance changes in epilepsy. IX Electrical Impedance Tomography Conference, on line USA: Dartmouth College.
  • Fabrizi, L., McEwan, A., Woo, E., Holder, D. (2008). Selection of an optimal electrode protocol for imaging of brain function with the KHU Mk1 16 channel EIT system using computer simulation. IX Electrical Impedance Tomography Conference, on line USA: Dartmouth College.
  • McEwan, A., Holder, D., Tapson, J., Van Schaik, F. (2008). Wide-bandwidth, High Frame Rate Electrical Impedance Tomography / Spectroscopy: A Code Division Multiplexing (CDM) Approach. 2008 BIODEVICES conference, Portugal: Institute for Systems and Technologies of Information, Control and Communication (INSTICC).
  • Fabrizi, L., McEwan, A., Oh, O., Holder, D. (2007). Analysis of resting noise characteristics of three EIT systems in order to compare suitability for time difference imaging with scalp electrodes during epilepsy. 13th International Conference on Electrical Bioimpedance and the 8th Conference on Electrical Impedance Tomography 2007 (ICEBI 2007), Berlin: Springer. [More Information]
  • McEwan, A., Holder, D. (2007). Battery powered and wireless Electrical Impedance Tomography Spectroscopy Imaging using Bluetooth. 11th Mediterranean Conference on Medical and Biomedical Engineering and Computing 2007, Berlin, Germany: Springer.
  • McEwan, A., Tapson, J., Van Schaik, F., Holder, D. (2007). Electrode Circuits for Frequency-and Code-Division Multiplexed Impedance Tomography. IEEE BiOCAS 2007 The International IEEE Biomedical Circuits and System Conference, international: (IEEE) Institute of Electrical and Electronics Engineers.
  • McEwan, A., Collins, S. (2006). A Compact Direct Digital Frequency Synthesis Architecture. IEEE International Symposium on Circuits and Systems ISCAS 2006, United States: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Romsauerova, A., McEwan, A., Horesh, L., Oh, T., Woo, E., Holder, D. (2006). A comparison of Multi-Frequency EIT systems intended for acute stroke imaging. World Congress on Medical Physics and Biomedical Engineering 2006. Springer. [More Information]
  • Fabrizi, L., Horesh, L., McEwan, A., Holder, D. (2006). A feasibility study for imaging of epileptic seizures by EIT using a realistic FEM of the head. World Congress on Medical Physics and Biomedical Engineering 2006. Springer. [More Information]
  • Chappell, M., McEwan, A. (2006). A Low Power, High Speed Accumulator for DDFS Applications. 2004 International Symposium on Circuits and Systems, Piscataway, NJ: (IEEE) Institute of Electrical and Electronics Engineers.
  • Romsauerova, A., Yerworth, R., McEwan, A., Horesh, L., Perez-Juste Abascal, J., Holder, D. (2006). Calibration and preliminary human measurements for multifrequency EIT of the human head. 6th Conference on Biomedical Applications of Electrical Impedance Tomography 2005, United Kingdom: Institute of Physics Publishing.
  • Romsauerova, A., McEwan, A., Fabrizi, L., Holder, D. (2006). Evaluation of the performance of the Multifrequency Electrical Impedance Tomography (MFEIT) intended for imaging acute stroke. 13th International Conference on Electrical Bioimpedance and the 8th Conference on Electrical Impedance Tomography 2007 (ICEBI 2007), Berlin: Springer. [More Information]
  • McEwan, A., Holder, D. (2006). Instrumentation improvements in battery powered, wireless EITS. World Congress on Medical Physics and Biomedical Engineering 2006. Springer. [More Information]
  • Romsauerova, A., McEwan, A., Holder, D. (2006). Optimization of the pattern of applied frequencies for Multifrequency EIT (MFEIT) of the head in order to minimise scalp skin stimulation. World Congress on Medical Physics and Biomedical Engineering 2006. Springer. [More Information]
  • McEwan, A., Romsauerova, A., Horesh, L., Holder, D. (2006). Performance improvements in a MF-EIT system for acute stroke: The UCL Mk2.5. World Congress on Medical Physics and Biomedical Engineering 2006. Springer.
  • McEwan, A., Yerworth, R., Horesh, L., Holder, D. (2006). Specification and calibration of a Multi-frequency MEIT system for stroke. 6th Conference on Biomedical Applications of Electrical Impedance Tomography 2005, United Kingdom: Institute of Physics Publishing.
  • Horesh, L., Gilad, O., Romsauerova, A., McEwan, A., Arridge, S., Holder, D. (2005). Stroke Type Differentiation by Multi-Frequency Electrical Impedance Tomography - A Feasibility Study. 3rd European Medical and Biological Engineering Conference EMBEC 2005.
  • McEwan, A., Yerworth, R., Bayford, R., Brown, B., Milnes, P., Holder, D. (2005). Wireless EIT. 12th International Conference on Electrical Bio-Impedance and 5th Electrical Impedance Tomography Conference ICEBI/EIT 2004, United Kingdom: Institute of Physics Publishing.
  • McEwan, A., Van Schaik, F. (2004). An Alternative Analog VLSI Implementation of the Meddis Inner Hair Cell Model. 2004 International Symposium on Circuits and Systems, 2004. ISCAS '04. (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • McEwan, A., Shah, S., Collins, S. (2003). A Direct Digital Frequency Synthesis System for Low Power Communications. 29th European Solid State Circuits Conference (ESSCIRC), New Jersey, USA: (IEEE) Institute of Electrical and Electronics Engineers.
  • McEwan, A., Collins, S. (2003). Analogue Interpolation Based Direct Digital Frequency Synthesis. 2003 IEEE International Symposium on Circuits and Systems, New Jersey, USA: (IEEE) Institute of Electrical and Electronics Engineers.

Patents

  • McEwan, A., Holder, D., Van Schaik, F., Tapson, J. (2013). Code-Division Multiplexed Electrical Impedance Tomography System. Patent No. 2010/04425, 304184. South Africa.

2014

  • Wi, H., Sohal, H., McEwan, A., Woo, E., Oh, T. (2014). Multi-Frequency Electrical Impedance Tomography System With Automatic Self-Calibration for Long-Term Monitoring. IEEE Transactions on Biomedical Circuits and Systems, 8(1), 119-128. [More Information]

2013

  • Kwon, H., McEwan, A., Oh, T., Farooq, A., Woo, E., Seo, J. (2013). A Local Region of Interest Imaging Method for Electrical Impedance Tomography with Internal Electrodes. Computational and Mathematical Methods in Medicine, 2013, 1-9. [More Information]
  • Baeg, J., Wi, H., Oh, T., McEwan, A., Woo, E. (2013). An Amplitude-to-Time Conversion Technique Suitable for Multichannel Data Acquisition and Bioimpedance Imaging. IEEE Transactions on Biomedical Circuits and Systems, 7(3), 349-354. [More Information]
  • Polisiero, M., Bifulco, P., Liccardo, A., Cesarelli, M., Romano, M., Gargiulo, G., McEwan, A., D’Apuzzo, M. (2013). Design and assessment of a low-cost, electromyographically controlled, prosthetic hand. Medical Devices: Evidence and Research, 6(1), 97-104. [More Information]
  • Nguyen, D., Kosobrodov, R., Barry, M., Chik, W., Jin, C., Oh, T., Thiagalingam, A., McEwan, A. (2013). Electrode-skin contact impedance: In vivo measurements on an ovine model. Journal of Physics: Conference Series, 434(1), 1-4. [More Information]
  • Oh, T., Jeong, W., McEwan, A., Park, H., Kim, H., Kwon, O., Woo, E. (2013). Feasibility of Magnetic Resonance Electrical Impedance Tomography (MREIT) Conductivity Imaging to Evaluate Brain Abscess Lesion: In vivo Canine Model. Journal of Magnetic Resonance Imaging, 38(1), 189-197. [More Information]
  • Chik, W., Barry, M., Thavapalachandran, S., Midekin, C., Pouliopoulos, J., Lim, T., Sivagangabalan, G., Thomas, S., Ross, D., McEwan, A., Kovoor, P., Thiagalingam, A. (2013). High Spatial Resolution Thermal Mapping of Radiofrequency Ablation Lesions Using a Novel Thermochromic Liquid Crystal Myocardial Phantom. Journal of Cardiovascular Electrophysiology, 24(11), 1278-1286. [More Information]
  • Bifulco, P., Massa, R., Cesarelli, M., Romano, M., Fratini, A., Gargiulo, G., McEwan, A. (2013). Investigating the role of capacitive coupling between the operating table and the return electrode of an electrosurgery unit in the modification of the current density distribution within the patients’ body. BioMedical Engineering OnLine, 12(1), 1-12. [More Information]
  • Nguyen, D., Kosobrodov, R., Barry, M., Chik, W., Pouliopoulos, J., Oh, T., Thiagalingam, A., McEwan, A. (2013). Preliminary results on different impedance contrast agents for pulmonary perfusion imaging with electrical impedance tomography. Journal of Physics: Conference Series, 434(1), 1-4. [More Information]
  • McEwan, A., Holder, D., Van Schaik, F., Tapson, J. (2013). Code-Division Multiplexed Electrical Impedance Tomography System. Patent No. 2010/04425, 304184. South Africa.
  • Gargiulo, G., McEwan, A., Bifulco, P., Cesarelli, M., Jin, C., Tapson, J., Thiagalingam, A., van Schaik, A. (2013). Towards true unipolar bio-potential recording: A preliminary result for ECG. Physiological Measurement, 34(1), N1-N7. [More Information]
  • Gargiulo, G., McEwan, A., Bifulco, P., Cesarelli, M., Jin, C., Tapson, J., Thiagalingam, A., van Schaik, A. (2013). Towards true unipolar ECG recording without the Wilson central terminal (preliminary results). Physiological Measurement, 34(9), 991-1012. [More Information]
  • Gargiulo, G., Tapson, J., van Schaik, A., McEwan, A., Thiagalingam, A. (2013). Unipolar ECG circuits: Towards more precise cardiac event identification. 2013 IEEE International Symposium on Circuits and Systems (ISCAS), Piscataway, NJ: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]

2012

  • Nguyen, D., Jin, C., Thiagalingam, A., McEwan, A. (2012). A Computer Simulation Study on the Applicability of 3D Electrical Impedance Tomography for Pulmonary Perfusion Defect Imaging. World Congress on Medical Physics and Biomedical Engineering 2012, Heidelberg: Springer. [More Information]
  • Nguyen, D., Jin, C., Thiagalingam, A., McEwan, A. (2012). A review on electrical impedance tomography for pulmonary perfusion imaging. Physiological Measurement, 33(5), 695-706. [More Information]
  • Gargiulo, G., Cohen, G., McEwan, A., Oh, T., Mohamed, A., Tapson, J., Nguyen, D., van Schaik, A., Wabnitz, A. (2012). Active electrode design suitable for simultaneous EIT and EEG. Electronics Letters, 48(25), 1583-1584. [More Information]
  • Mort, P., Drury, H., Calvo, R., Skinner, I., McEwan, A., Levy, D., Garcia Molina, M., Mitrajit, R. (2012). An Online Writing Centre for Engineering Students. 2012 International CDIO Conference, Brisbane: CDIO Conference 2012.
  • Kwon, H., Wi, H., Karki, B., Lee, E., McEwan, A., Woo, E., Harrach, B., Seo, J., Oh, T. (2012). Bioimpedance spectroscopy tensor probe for anisotropic measurements. Electronics Letters, 48(20), 1253-1255. [More Information]
  • Packham, B., Koo, H., Romsauerova, A., Ahn, S., McEwan, A., Jun, S., Holder, D. (2012). Comparison of frequency difference reconstruction algorithms for the detection of acute stroke using EIT in a realistic head-shaped tank. Physiological Measurement, 33(5), 767-785. [More Information]
  • Khamis, H., Mohamed, A., Simpson, S., McEwan, A. (2012). Detection of temporal lobe seizures and identification of lateralisation from audified EEG. Clinical Neurophysiology, 123(9), 1714-1720. [More Information]
  • Cardu, R., Leong, P., Jin, C., McEwan, A. (2012). Electrode contact impedance sensitivity to variations in geometry. Physiological Measurement, 33(5), 817-830. [More Information]
  • Nasehi Tehrani, J., Oh, T., Jin, C., Thiagalingam, A., McEwan, A. (2012). Evaluation of different stimulation and measurement patterns based on internal electrode: Application in cardiac impedance tomography. Computers in Biology and Medicine, 42(11), 1122-1132. [More Information]
  • Ang, C., McEwan, A., van Schaik, A., Jin, C., Leong, P. (2012). FPGA implementation of biologically-inspired auto-associative memory. Electronics Letters, 48(3), 148-149. [More Information]
  • Gargiulo, G., Bifulco, P., Calvo, R., Romano, M., Ruffo, M., Shephard, R., Cesarelli, M., Jin, C., McEwan, A., Van Schaik, F. (2012). Giga-Ohm High-Impedance FET Input Amplifiers for Dry Electrode Biosensor Circuits and Systems. In Krzysztof Iniewski (Eds.), Integrated Microsystems: Electronics, Photonics, and Biotechnology, (pp. 165-194). Boca Raton, FL, United States of America: CRC Press.
  • Zhao, M., Wi, H., Kamal, A., McEwan, A., Woo, E., Oh, T. (2012). High density trans-admittance mammography development and preliminary phantom tests. BioMedical Engineering OnLine, 11, 1-16. [More Information]
  • Gargiulo, G., Mohamed, A., McEwan, A., Bifulco, P., Cesarelli, M., Jin, C., Ruffo, M., Tapson, J., van Schaik, A. (2012). Investigating the role of combined acoustic-visual feedback in one-dimensional synchronous brain computer interfaces, a preliminary study. Medical Devices: Evidence and Research, 5, 81-88. [More Information]
  • Nasehi Tehrani, J., McEwan, A., Jin, C., van Schaik, A. (2012). L1 regularization method in electrical impedance tomography by using the L1-curve (Pareto frontier curve). Applied Mathematical Modelling, 36(3), 1095-1105. [More Information]
  • Nasehi Tehrani, J., Yan, H., Zhu, M., Jin, C., McEwan, A. (2012). Measurement of Retinal Arteriolar Diameters from Auto Scale Phase Congruency with Fuzzy Weighting and L1 Regularization. 34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society EMBS 2012, Piscataway: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Nasehi Tehrani, J., Jin, C., McEwan, A. (2012). Modelling of an oesophageal electrode for cardiac function tomography. Computational and Mathematical Methods in Medicine, 2012, 1-10. [More Information]
  • Wang, C., Kim, J., Jin, C., Leong, P., McEwan, A. (2012). Near infrared spectroscopy in optical coherence tomography. Journal of Near Infrared Spectroscopy, 20(1), 237-247. [More Information]
  • Mohamadou, Y., Oh, T., Wi, H., Sohal, H., Farooq, A., Woo, E., McEwan, A. (2012). Performance evaluation of wideband bio-impedance spectroscopy using constant voltage source and constant current source. Measurement Science and Technology, 23(10), 1-10. [More Information]
  • Gargiulo, G., Shephard, R., Tapson, J., McEwan, A., Bifulco, P., Cesarelli, M., Jin, C., Al-Ani, A., Wang, N., van Schaik, A. (2012). Pregnancy detection and monitoring in cattle via combined foetus electrocardiogram and phonocardiogram signal processing. BMC Veterinary research, 8, 1-10. [More Information]

2011

  • Wang, R., Jin, C., McEwan, A., Van Schaik, F. (2011). A programmable axonal propagation delay circuit for time-delay spiking neural networks. 2011 IEEE International Symposium on Circuits and Systems (ISCAS 2011), Piscataway, USA: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Martin, A., Jin, C., McEwan, A., Martens, W. (2011). A similarity algorithm for interactive style imitation. 2011 International Computer Music Conference (ICMC 2011), USA: The International Computer Music Association.
  • Gargiulo, G., McEwan, A. (2011). Advanced Biomedical Engineering. Rijeka, Croatia: InTech Open Access Publishers (peer reviewed).
  • Gargiulo, G., McEwan, A. (2011). Applied Biomedical Engineering. Rijeka, Croatia: InTech Open Access Publishers (peer reviewed).
  • Wang, L., Ahad, M., McEwan, A., Li, J., Jafarpoor, M., Rutkove, S. (2011). Assessment of Alterations in the Electrical Impedance of Muscle After Experimental Nerve Injury via Finite-Element Analysis. I E E E Transactions on Biomedical Engineering, 58(6), 1585-1591. [More Information]
  • Fabrizi, L., Horesh, L., Perez-Juste Abascal, J., McEwan, A., Gilad, O., Bayford, R., Holder, D. (2011). Determination of Optimal Parameters and Feasibility for Imaging of Epileptic Seizures by Electrical Impedance Tomography: A Modelling Study Using a Realistic Finite Element Model of the Head. In Gaetano D. Gargiulo, Alistair McEwan (Eds.), Applied Biomedical Engineering, (pp. 459-480). Rijeka, Croatia: InTech Open Access Publishers (peer reviewed).
  • Nasehi Tehrani, J., Wang, C., Jin, C., McEwan, A., Gibbs, O., Shanehsaz, E., Barry, M., Thaigalingam, A. (2011). Edge enhancement for retinal vasculature caliber evaluation in prediction of cardiovascular disease. 2011 4th International Conference on Biomedical Engineering and Informatics (BMEI 2011), Piscataway, NJ, USA: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Ruffo, M., Cesarelli, M., Jin, C., Gargiulo, G., McEwan, A., Sullivan, C., Bifulco, P., Romano, M., Shephard, R., Van Schaik, F. (2011). Non-Invasive Foetal Monitoring with Combined ECG - PCG System. In Anthony N Laskovski (Eds.), Biomedical Engineering, Trends in Electronics, Communications and Software, (pp. 347-366). Croatia: InTech Open Access Publishers (peer reviewed).
  • Wabnitz, A., Epain, N., McEwan, A., Jin, C. (2011). Upscaling Ambisonic sound scenes using compressed sensing techniques. 2011 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA 2011), Piscataway, USA: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]

2010

  • Nasehi Tehrani, J., Chik, W., Barry, M., Thiagalingam, A., Jin, C., Van Schaik, F., Oh, T., Woo, E., McEwan, A. (2010). 3D EIT for Cardiac Function Imaging Using Internal Electrodes: Preliminary simulations and pilot results. 2010 International Workshop on MR-based Impedance Imaging (MRII'10), Korea.
  • Nasehi Tehrani, J., Jin, C., McEwan, A., Van Schaik, F. (2010). A comparison between compressed sensing algorithms in Electrical Impedance Tomography. 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS 2010), Buenos Aires, Argentina,: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Nasehi Tehrani, J., McEwan, A. (2010). A comparison between new L1 minimization algorithms in Electrical Impedance Tomography using the Pareto Curve. 17th Iranian Conference of Biomedical Engineering (ICBME 2010), Isfahan: Iranian Conference of Biomedical Engineering.
  • Van Schaik, F., Jin, C., McEwan, A., Hamilton, T. (2010). A log-domain implementation of the Izhikevich neuron model. 2010 IEEE International Symposium on Circuits and Systems ISCAS 2010, USA: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Van Schaik, F., Jin, C., McEwan, A., Hamilton, T., Mihalas, S., Niebur, E. (2010). A log-domain implementation of the Mihalas-Niebur neuron model. 2010 IEEE International Symposium on Circuits and Systems ISCAS 2010, USA: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Fabrizi, L., Yerworth, R., McEwan, A., Gilad, O., Bayford, R., Holder, D. (2010). A method for removing artefacts from continuous EEG recordings during functional electrical impedance tomography for the detection of epileptic seizures. Physiological Measurement, 31(8), S57-S72. [More Information]
  • Gargiulo, G., Bifulco, P., McEwan, A., Nasehi Tehrani, J., Calvo, R., Romano, M., Ruffo, M., Shephard, R., Cesarelli, M., Jin, C., Van Schaik, F., et al (2010). Dry electrode Bio-potential Recordings. 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS 2010), Buenos Aires, Argentina,: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Nasehi Tehrani, J., Anderson, C., Jin, C., Van Schaik, F., Holder, D., McEwan, A. (2010). Feasibility of electrical impedance tomography in haemorrhagic stroke treatment using adaptive mesh. Journal of Physics: Conference Series, 224(012065), 1-4. [More Information]
  • Nasehi Tehrani, J., Jin, C., Van Schaik, F., McEwan, A. (2010). L1 regularization method in electrical impedance tomography by using Pareto frontier curve. 2010 International Workshop on MR-based Impedance Imaging (MRII'10), Korea.
  • Wang, R., Jin, C., McEwan, A., Van Schaik, F. (2010). Neural Network simulation using Verilog-A, a hardware description language. 4th Australian Workshop on Computational Neuroscience, Australia: Queensland Brain Institute.
  • Gargiulo, G., Bifulco, P., Calvo, R., Cesarelli, M., Jin, C., McEwan, A., Van Schaik, F. (2010). Non-invasive Electronic Biosensor Circuits and Systems. In Vernon S. Somerset (Eds.), Intelligent and Biosensors, (pp. 123-146). Olajnica 19/2, 32000 Vukovar, Croatia: InTech Open Access Publishers (peer reviewed).
  • McEwan, A., Tapson, J., Van Schaik, F., Holder, D. (2010). Spread Spectrum EIT by Code Division Multiplexing. Journal of Physics: Conference Series, 224(012143), 1-4. [More Information]
  • Jeganathan, S., Van Schaik, F., Jin, C., McEwan, A. (2010). Suitability of the INPHAZE impedance analyzer for Bio-impedance and EIT. Journal of Physics: Conference Series, 224(012014), 1-4. [More Information]
  • Van Schaik, F., Brette, R., Goodman, D., Jin, C., McEwan, A. (2010). Wait for it..: Simulating axonal delay adaptation in Brian. 4th Australian Workshop on Computational Neuroscience, Australia: Queensland Brain Institute.
  • Gargiulo, G., Bifulco, P., Cesarelli, M., Jin, C., McEwan, A., Van Schaik, F. (2010). Wearable Dry Sensors with Bluetooth Connection for Use in Remote Patient Monitoring Systems. In Anthony C Smith, Anthony J Maeder (Eds.), Global Telehealth: Selected Papers from Global Telehealth 2010 (GT2010), (pp. 57-65). Amsterdam, Netherlands: IOS Press.

2009

  • Fabrizi, L., McEwan, A., Oh, T., Woo, E., Holder, D. (2009). A comparison of two EIT systems suitable for imaging impedance changes in epilepsy. Physiological Measurement, 30(6), S103-S120. [More Information]
  • McEwan, A., Hamsch, M., Watson, S., Igney, C., Kahlert, J. (2009). A comparison of two phase measurement techniques for Magnetic Impedance Tomography. World Congress on Medical Physics and Biomedical Engineering 2009, Germany: Springer. [More Information]
  • Fabrizi, L., McEwan, A., Oh, T., Woo, E., Holder, D. (2009). An electrode addressing protocol for imaging brain function with electrical impedance tomography using a 16-channel semi-parallel system. Physiological Measurement, 30(6), S85-S101. [More Information]
  • McEwan, A., Tapson, J., Van Schaik, F., Holder, D. (2009). Code-division-multiplexed electrical impedance tomography spectroscopy. IEEE Transactions on Biomedical Circuits and Systems, 3(5), 332-338. [More Information]
  • Holder, D., Romsauerova, A., McEwan, A., Horesh, L. (2009). Electrical impedance tomography of acute stroke. 4th European Conference of the International Federation for Medical and Biological Engineering ECIFMBE 2008, Germany: Springer.

2008

  • Fabrizi, L., McEwan, A., Oh, D., Woo, E., Holder, D. (2008). Comparison of two EIT systems suitable for imaging impedance changes in epilepsy. IX Electrical Impedance Tomography Conference, on line USA: Dartmouth College.
  • Fabrizi, L., McEwan, A., Woo, E., Holder, D. (2008). Selection of an optimal electrode protocol for imaging of brain function with the KHU Mk1 16 channel EIT system using computer simulation. IX Electrical Impedance Tomography Conference, on line USA: Dartmouth College.
  • McEwan, A., Holder, D., Tapson, J., Van Schaik, F. (2008). Wide-bandwidth, High Frame Rate Electrical Impedance Tomography / Spectroscopy: A Code Division Multiplexing (CDM) Approach. 2008 BIODEVICES conference, Portugal: Institute for Systems and Technologies of Information, Control and Communication (INSTICC).

2007

  • McEwan, A., Cusick, G., Holder, D. (2007). A review of errors in multi-frequency EIT instrumentation. Physiological Measurement, 28(7, Article number S15), S197-S215. [More Information]
  • Fabrizi, L., McEwan, A., Woo, E., Holder, D. (2007). Analysis of resting noise characteristics of three EIT systems in order to compare suitability for time difference imaging with scalp electrodes during epileptic seizures. Physiological Measurement, 28(7, Article number S16), S217-S236. [More Information]
  • Fabrizi, L., McEwan, A., Oh, O., Holder, D. (2007). Analysis of resting noise characteristics of three EIT systems in order to compare suitability for time difference imaging with scalp electrodes during epilepsy. 13th International Conference on Electrical Bioimpedance and the 8th Conference on Electrical Impedance Tomography 2007 (ICEBI 2007), Berlin: Springer. [More Information]
  • McEwan, A., Holder, D. (2007). Battery powered and wireless Electrical Impedance Tomography Spectroscopy Imaging using Bluetooth. 11th Mediterranean Conference on Medical and Biomedical Engineering and Computing 2007, Berlin, Germany: Springer.
  • McEwan, A., Tapson, J., Van Schaik, F., Holder, D. (2007). Electrode Circuits for Frequency-and Code-Division Multiplexed Impedance Tomography. IEEE BiOCAS 2007 The International IEEE Biomedical Circuits and System Conference, international: (IEEE) Institute of Electrical and Electronics Engineers.
  • Fabrizi, L., Horesh, L., McEwan, A., Holder, D. (2007). Estimation of signal size for imaging of epileptic seizures by electrical impedance tomography (EIT). Clinical Neurophysiology, 118(6), e183. [More Information]

2006

  • McEwan, A., Collins, S. (2006). A Compact Direct Digital Frequency Synthesis Architecture. IEEE International Symposium on Circuits and Systems ISCAS 2006, United States: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Romsauerova, A., McEwan, A., Horesh, L., Oh, T., Woo, E., Holder, D. (2006). A comparison of Multi-Frequency EIT systems intended for acute stroke imaging. World Congress on Medical Physics and Biomedical Engineering 2006. Springer. [More Information]
  • Fabrizi, L., Horesh, L., McEwan, A., Holder, D. (2006). A feasibility study for imaging of epileptic seizures by EIT using a realistic FEM of the head. World Congress on Medical Physics and Biomedical Engineering 2006. Springer. [More Information]
  • Chappell, M., McEwan, A. (2006). A Low Power, High Speed Accumulator for DDFS Applications. 2004 International Symposium on Circuits and Systems, Piscataway, NJ: (IEEE) Institute of Electrical and Electronics Engineers.
  • Romsauerova, A., Yerworth, R., McEwan, A., Horesh, L., Perez-Juste Abascal, J., Holder, D. (2006). Calibration and preliminary human measurements for multifrequency EIT of the human head. 6th Conference on Biomedical Applications of Electrical Impedance Tomography 2005, United Kingdom: Institute of Physics Publishing.
  • McEwan, A., Romsauerova, A., Yerworth, R., Horesh, L., Bayford, R., Holder, D. (2006). Design and calibration of a compact multi-frequency EIT system for acute stroke imaging. Physiological Measurement, 27(5), S199-S210. [More Information]
  • McEwan, A., Collins, S. (2006). Direct Digital-Frequency Synthesis by Analog Interpolation. IEEE Transactions on Circuits and Systems. Part 2: Express Briefs, 53(11), 1294-1298. [More Information]
  • McEwan, A., Collins, S. (2006). Efficient, ROM-less DDFS using non-linear interpolation and non-linear DAC 2006. Analog Integrated Circuits and Signal Processing, 48(3), 231-237. [More Information]
  • Romsauerova, A., McEwan, A., Fabrizi, L., Holder, D. (2006). Evaluation of the performance of the Multifrequency Electrical Impedance Tomography (MFEIT) intended for imaging acute stroke. 13th International Conference on Electrical Bioimpedance and the 8th Conference on Electrical Impedance Tomography 2007 (ICEBI 2007), Berlin: Springer. [More Information]
  • Fabrizi, L., Sparkes, M., Horesh, L., Perez-Juste Abascal, J., McEwan, A., Bayford, R., Elwes, R., Binnie, C., Holder, D. (2006). Factors limiting the application of electrical impedance tomography for identification of regional conductivity changes using scalp electrodes during epileptic seizures in humans. Physiological Measurement, 27(5), S163-S174. [More Information]
  • Romsauerova, A., McEwan, A., Holder, D. (2006). Identification of a suitable current waveform for acute stroke imaging. Physiological Measurement, 27(5), S211-S219. [More Information]
  • McEwan, A., Holder, D. (2006). Instrumentation improvements in battery powered, wireless EITS. World Congress on Medical Physics and Biomedical Engineering 2006. Springer. [More Information]
  • Romsauerova, A., McEwan, A., Horesh, L., Yerworth, R., Bayford, R., Holder, D. (2006). Multi-frequency electrical impedance tomography (EIT) of the adult human head: initial findings in brain tumours, arteriovenous malformations and chronic stroke, development of an analysis method and calibration. Physiological Measurement, 27(5), S147-S161. [More Information]
  • Romsauerova, A., McEwan, A., Holder, D. (2006). Optimization of the pattern of applied frequencies for Multifrequency EIT (MFEIT) of the head in order to minimise scalp skin stimulation. World Congress on Medical Physics and Biomedical Engineering 2006. Springer. [More Information]
  • McEwan, A., Romsauerova, A., Horesh, L., Holder, D. (2006). Performance improvements in a MF-EIT system for acute stroke: The UCL Mk2.5. World Congress on Medical Physics and Biomedical Engineering 2006. Springer.
  • McEwan, A., Yerworth, R., Horesh, L., Holder, D. (2006). Specification and calibration of a Multi-frequency MEIT system for stroke. 6th Conference on Biomedical Applications of Electrical Impedance Tomography 2005, United Kingdom: Institute of Physics Publishing.

2005

  • Horesh, L., Gilad, O., Romsauerova, A., McEwan, A., Arridge, S., Holder, D. (2005). Stroke Type Differentiation by Multi-Frequency Electrical Impedance Tomography - A Feasibility Study. 3rd European Medical and Biological Engineering Conference EMBEC 2005.
  • McEwan, A., Yerworth, R., Bayford, R., Brown, B., Milnes, P., Holder, D. (2005). Wireless EIT. 12th International Conference on Electrical Bio-Impedance and 5th Electrical Impedance Tomography Conference ICEBI/EIT 2004, United Kingdom: Institute of Physics Publishing.

2004

  • McEwan, A., Van Schaik, F. (2004). An Alternative Analog VLSI Implementation of the Meddis Inner Hair Cell Model. 2004 International Symposium on Circuits and Systems, 2004. ISCAS '04. (IEEE) Institute of Electrical and Electronics Engineers. [More Information]

2003

  • McEwan, A., Shah, S., Collins, S. (2003). A Direct Digital Frequency Synthesis System for Low Power Communications. 29th European Solid State Circuits Conference (ESSCIRC), New Jersey, USA: (IEEE) Institute of Electrical and Electronics Engineers.
  • McEwan, A., Van Schaik, F. (2003). An analogue VLSI implementation of the Meddis inner hair cell model. Eurasip Journal on Advances in Signal Processing, 2003 (7), 639-648. [More Information]
  • McEwan, A., Collins, S. (2003). Analogue Interpolation Based Direct Digital Frequency Synthesis. 2003 IEEE International Symposium on Circuits and Systems, New Jersey, USA: (IEEE) Institute of Electrical and Electronics Engineers.

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