Publications list for Dr Paul Keall

2013 | 2012 | 2011 | 2010 | 2009 | 2008

2013

   
  • Tehrani, J., O'Brien, R., Poulsen, P., Keall, P. (2013), Real-time estimation of prostate tumor rotation and translation with a kV imaging system based on an iterative closest point algorithm. Physics in Medicine and Biology. 58(23), 8517-8533. [Abstract]
  • Kolling, S., Oborn, B., Keall, P. (2013), Impact of the MLC on the MRI field distortion of a prototype MRI-linac. Medical Physics. 40(12), 121705. [Abstract]
  • Pommer, T., Falk, M., Poulsen, P., Keall, P., O'Brien, R., Munck af Rosenschold, P. (2013), The impact of leaf width and plan complexity on DMLC tracking of prostate intensity modulated arc therapy. Medical Physics. 40(11), 111717. [Abstract]
  • Ravkilde, T., Keall, P., Grau, C., Hoyer, M., Poulsen, P. (2013), Time-resolved dose distributions to moving targets during volumetric modulated arc therapy with and without dynamic MLC tracking. Medical Physics. 40(11), 111723. [Abstract]
  • Ravkilde, T., Keall, P., Grau, C., Hoyer, M., Poulsen, P. (2013), Time-resolved dose reconstruction by motion encoding of volumetric modulated arc therapy fields delivered with and without dynamic multi-leaf collimator tracking. Acta Oncologica. 52(7), 1497-1503. [Abstract]
  • Yamamoto, T., Kabus, S., Lorenz, C., Johnston, E., Maxim, P., Diehn, M., Eclov, N., Barquero, C., Loo, B., Keall, P. (2013), 4D CT lung ventilation images are affected by the 4D CT sorting method. Medical Physics. 40(10), 101907. [Abstract]
  • Rottmann, J., Keall, P., Berbeco, R. (2013), Real-time soft tissue motion estimation for lung tumors during radiotherapy delivery. Medical Physics. 40(9), 091713. [Abstract]
  • Ng, J., Booth, J., Poulsen, P., Kuncic, Z., Keall, P. (2013), Estimation of effective imaging dose for kilovoltage intratreatment monitoring of the prostate position during cancer radiotherapy. Physics in Medicine and Biology. 58(17), 5983-5996. [Abstract]
  • Bjerre, T., Crijns, S., af Rosenschold, P., Aznar, M., Specht, L., Larsen, R., Keall, P. (2013), Three-dimensional MRI-linac intra-fraction guidance using multiple orthogonal cine-MRI planes. Physics in Medicine and Biology. 58(14), 4943-4950. [Abstract]
  • Rottmann, J., Keall, P., Berbeco, R. (2013), Markerless EPID image guided dynamic multi-leaf collimator tracking for lung tumors. Physics in Medicine and Biology. 58(12), 4195-4204. [Abstract]
  • Balik, S., Weiss, E., Jan, N., Roman, N., Sleeman, W., Fatyga, M., Christensen, G., Zhang, C., Murphy, M., Lu, J., Keall, P., Williamson, J., Hugo, G. (2013), Evaluation of 4-dimensional computed tomography to 4-dimensional cone-beam computed tomography deformable image registration for lung cancer adaptive radiation therapy. International Journal of Radiation Oncology, Biology, Physics. 86(2), 372-379. [Abstract]
  • Pommer, T., Falk, M., Poulsen, P., Keall, P., O'Brien, R., Petersen, P., Munck af Rosenschold, P. (2013), Dosimetric benefit of DMLC tracking for conventional and sub-volume boosted prostate intensity-modulated arc radiotherapy. Physics in Medicine and Biology. 58(7), 2349-2361. [Abstract]
  • Pollock, S., Lee, D., Keall, P., Kim, T. (2013), Audiovisual biofeedback improves motion prediction accuracy. Medical Physics. 40(4), 041705. [Abstract]
  • Cooper, B., O'Brien, R., Balik, S., Hugo, G., Keall, P. (2013), Respiratory triggered 4D cone-beam computed tomography: A novel method to reduce imaging dose. Medical Physics. 40(4), 041901. [Abstract]
  • O'Brien, R., Cooper, B., Keall, P. (2013), Optimizing 4D cone beam computed tomography acquisition by varying the gantry velocity and projection time interval. Physics in Medicine and Biology. 58(6), 1705-1723. [Abstract]

2012

   
  • Yamamoto, T., Kabus, S., von Berg, J., Lorenz, C., Chung, M., Hong, J., Loo, B., Keall, P. (2012), Reproducibility of four-dimensional computed tomography-based lung ventilation imaging. Academic Radiology. 19(12), 1554-1565. [Abstract]
  • Cho, B., Poulsen, P., Ruan, D., Sawant, A., Keall, P. (2012), Experimental investigation of a general real-time 3D target localization method using sequential kV imaging combined with respiratory monitoring. Physics in Medicine and Biology. 57(22), 7395-7407. [Abstract]
  • Kim, T., Pollock, S., Lee, D., O'Brien, R., Keall, P. (2012), Audiovisual biofeedback improves diaphragm motion reproducibility in MRI. Medical Physics. 39(11), 6921-6928. [Abstract]
  • Poulsen, P., Schmidt, M., Keall, P., Worm, E., Fledelius, W., Hoffmann, L. (2012), A method of dose reconstruction for moving targets compatible with dynamic treatments. Medical Physics. 39(10), 6237-6246. [Abstract]
  • Ng, J., Booth, J., Poulsen, P., Fledelius, W., Worm, E., Eade, T., Hegi, F., Kneebone, A., Kuncic, Z., Keall, P. (2012), Kilovoltage Intrafraction Monitoring for Prostate Intensity Modulated Arc Therapy: First Clinical Results. International Journal of Radiation: Oncology - Biology - Physics. 84(5), e655-e661. [Abstract]
  • Poulsen, P., Fledelius, W., Cho, B., Keall, P. (2012), Image-based dynamic multileaf collimator tracking of moving targets during intensity-modulated arc therapy. International Journal of Radiation: Oncology - Biology - Physics. 83(2), e265-e271. [Abstract]
  • Crocker, J., Ng, J., Keall, P., Booth, J. (2012), Measurement of patient imaging dose for real-time kilovoltage x-ray intrafraction tumour position monitoring in prostate patients. Physics in Medicine and Biology. 57(10), 2969-2980. [Abstract]
  • Falk, M., Larsson, T., Keall, P., Chul Cho, B., Aznar, M., Korreman, S., Poulsen, P., Af Rosenschold, P. (2012), The dosimetric impact of inversely optimized arc radiotherapy plan modulation for real-time dynamic MLC tracking delivery. Medical Physics. 39(3), 1588-1594. [Abstract]
  • Wu, J., Ruan, D., Cho, B., Sawant, A., Petersen, J., Newell, L., Cattell, H., Keall, P. (2012), Electromagnetic Detection and Real-time DMLC Adaptation to Target Rotation during Radiotherapy. International Journal of Radiation: Oncology - Biology - Physics. 82(3), e545-553. [Abstract]
  • Poulsen, P., Carl, J., Nielsen, J., Nielsen, M., Thomsen, J., Jensen, H., Kjærgaard, B., Zepernick, P., Worm, E., Fledelius, W., Cho, B., Sawant, A., Ruan, D., Keall, P. (2012), Megavoltage Image-Based Dynamic Multileaf Collimator Tracking of a NiTi Stent in Porcine Lungs on a Linear Accelerator. International journal of radiation oncology, biology, physics. 82(2), e321-7. [Abstract]
  • Yang, J., Yamamoto, T., Cho, B., Seo, Y., Keall, P. (2012), The impact of audio-visual biofeedback on 4D PET images: results of a phantom study. Medical Physics. 39(2), 1046-1057. [Abstract]
  • Oborn, B., Metcalfe, P., Butson, M., Rosenfeld, A., Keall, P. (2012), Electron contamination modeling and skin dose in 6 MV longitudinal field MRIgRT: Impact of the MRI and MRI fringe field. Medical Physics. 39(2), 874-890. [Abstract]

2011

   
  • Fledelius, W., Keall, P., Cho, B., Yang, X., Morf, D., Scheib, S., Poulsen, P. (2011), Tracking latency in image-based dynamic MLC tracking with direct image access. Acta Oncologica. 50(6), 952-959. [Abstract]
  • Ravkilde, T., Keall, P., Højbjerre, K., Fledelius, W., Worm, E., Poulsen, P. (2011), Geometric accuracy of dynamic MLC tracking with an implantable wired electromagnetic transponder. Acta Oncologica. 50(6), 944-951. [Abstract]
  • Constantin, D., Fahrig, R., Keall, P. (2011), A study of the effect of in-line and perpendicular magnetic fields on beam characteristics of electron guns in medical linear accelerators. Medical Physics. 38(7), 4174-4185. [Abstract]
  • Constantin, M., Perl, J., LoSasso, T., Salop, A., Whittum, D., Narula, A., Svatos, M., Keall, P. (2011), Modeling the truebeam linac using a CAD to Geant4 geometry implementation: dose and IAEA-compliant phase space calculations. Medical Physics. 38(7), 4018-4024. [Abstract]
  • Yoon, J., Sawant, A., Suh, Y., Cho, B., Suh, T., Keall, P. (2011), Experimental investigation of a moving averaging algorithm for motion perpendicular to the leaf travel direction in dynamic MLC target tracking. Medical Physics. 38(7), 3924-3931. [Abstract]
  • Yamamoto, T., Kabus, S., Klinder, T., Lorenz, C., von Berg, J., Blaffert, T., Loo, B., Keall, P. (2011), Investigation of four-dimensional computed tomography-based pulmonary ventilation imaging in patients with emphysematous lung regions. Physics in Medicine and Biology. 56(7), 2279-2298. [Abstract]
  • Poulsen, P., Fledelius, W., Keall, P., Weiss, E., Lu, J., Brackbill, E., Hugo, G. (2011), A method for robust segmentation of arbitrarily shaped radiopaque structures in cone-beam CT projections. Medical Physics. 38(4), 2151-2156. [Abstract]
  • Carlson, D., Keall, P., Loo, B., Chen, Z., Brown, J. (2011), Hypofractionation results in reduced tumor cell kill compared to conventional fractionation for tumors with regions of hypoxia. International Journal of Radiation: Oncology - Biology - Physics. 79(4), 1188-1195. [Abstract]
  • Yamamoto, T., Kabus, S., Klinder, T., von Berg, J., Lorenz, C., Loo, B., Keall, P. (2011), Four-dimensional computed tomography pulmonary ventilation images vary with deformable image registration algorithms and metrics. Medical Physics. 38(3), 1348-1358. [Abstract]
  • Ruan, D., Keall, P. (2011), Dynamic multileaf collimator control for motion adaptive radiotherapy: an optimization approach. Proceedings: 2011 IEEE Power Engineering and Automation Conference.
  • Keall, P., Sawant, A., Cho, B., Ruan, D., Wu, J., Poulsen, P., Petersen, J., Newell, L., Cattell, H., Korreman, S. (2011), Electromagnetic-guided dynamic multileaf collimator tracking enables motion management for intensity-modulated arc therapy. International Journal of Radiation: Oncology - Biology - Physics. 79(1), 312-320. [Abstract]
  • Cho, B., Poulsen, P., Sawant, A., Ruan, D., Keall, P. (2011), Real-time target position estimation using stereoscopic kilovoltage/megavoltage imaging and external respiratory monitoring for dynamic multileaf collimator tracking. International Journal of Radiation: Oncology - Biology - Physics. 79(1), 269-278. [Abstract]
  • Yamamoto, T., Kabus, S., von Berg, J., Lorenz, C., Keall, P. (2011), Impact of four-dimensional computed tomography pulmonary ventilation imaging-based functional avoidance for lung cancer radiotherapy. International Journal of Radiation: Oncology - Biology - Physics. 79(1), 279-288. [Abstract]
  • Keall, P. (2011), Locating and targeting moving tumors with radiation beams. Frontiers of Radiation Therapy and Oncology. 43, 118-131. [Abstract]

2010

   
  • Zhou, H., Rodriguez, M., van den Haak, F., Nelson, G., Jogani, R., Xu, J., Zhu, X., Xian, Y., Tran, P., Felsher, D., Keall, P., Graves, E. (2010), Development of a micro-computed tomography-based image-guided conformal radiotherapy system for small animals. International Journal of Radiation: Oncology - Biology - Physics. 78(1), 297-305. [Abstract]
  • Cho, B., Poulsen, P., Keall, P. (2010), Real-time tumor tracking using sequential kV imaging combined with respiratory monitoring: a general framework applicable to commonly used IGRT systems. Physics in Medicine and Biology. 55(12), 3299-3316. [Abstract]
  • Ruan, D., Keall, P. (2010), Online prediction of respiratory motion: multidimensional processing with low-dimensional feature learning. Physics in Medicine and Biology. 55(11), 3011-3025. [Abstract]
  • Poulsen, P., Cho, B., Ruan, D., Sawant, A., Keall, P. (2010), Dynamic multileaf collimator tracking of respiratory target motion based on a single kilovoltage imager during arc radiotherapy. International Journal of Radiation: Oncology - Biology - Physics. 77(2), 600-607. [Abstract]
  • Constantin, M., Constantin, D., Keall, P., Narula, A., Svatos, M., Perl, J. (2010), Linking computer-aided design (CAD) to Geant4-based Monte Carlo simulations for precise implementation of complex treatment head geometries. Physics in Medicine and Biology. 55(8), N211-N220. [Abstract]
  • Langner, U., Keall, P. (2010), Quantification of artifact reduction with real-time cine four-dimensional computed tomography acquisition methods. International Journal of Radiation: Oncology - Biology - Physics. 76(4), 1242-1250. [Abstract]
  • Poulsen, P., Cho, B., Sawant, A., Keall, P. (2010), Implementation of a new method for dynamic multileaf collimator tracking of prostate motion in arc radiotherapy using a single kV imager. International Journal of Radiation: Oncology - Biology - Physics. 76(3), 914-923. [Abstract]
  • Falk, M., af Rosenschöld, P., Keall, P., Cattell, H., Cho, B., Poulsen, P., Povzner, S., Sawant, A., Zimmerman, J., Korreman, S. (2010), Real-time dynamic MLC tracking for inversely optimized arc radiotherapy. Radiotherapy and Oncology. 94(2), 218-223. [Abstract]
  • Motomura, A., Bazalova, M., Zhou, H., Keall, P., Graves, E. (2010), Investigation of the effects of treatment planning variables in small animal radiotherapy dose distributions. Medical Physics. 37(2), 590-599. [Abstract]

2009

   
  • Ruan, D., Fessler, J., Balter, J., Keall, P. (2009), Real-time profiling of respiratory motion: baseline drift, frequency variation and fundamental pattern change. Physics in Medicine and Biology. 54(15), 4777-4792. [Abstract]
  • Cho, B., Poulsen, P., Sloutsky, A., Sawant, A., Keall, P. (2009), First demonstration of combined kV/MV image-guided real-time dynamic multileaf-collimator target tracking. International Journal of Radiation: Oncology - Biology - Physics. 74(3), 859-867. [Abstract]
  • Rodriguez, M., Zhou, H., Keall, P., Graves, E. (2009), Commissioning of a novel microCT/RT system for small animal conformal radiotherapy. Physics in Medicine and Biology. 54(12), 3727-3240. [Abstract]
  • Suh, Y., Sawant, A., Venkat, R., Keall, P. (2009), Four-dimensional IMRT treatment planning using a DMLC motion-tracking algorithm. Physics in Medicine and Biology. 54(12), 3821-3835. [Abstract]
  • Ma, Y., Lee, L., Keshet, O., Keall, P., Xing, L. (2009), Four-dimensional inverse treatment planning with inclusion of implanted fiducials in IMRT segmented fields. Medical Physics. 36(6), 2215-2221. [Abstract]
  • Sawant, A., Smith, R., Venkat, R., Santanam, L., Cho, B., Poulsen, P., Cattell, H., Newell, L., Parikh, P., Keall, P. (2009), Toward submillimeter accuracy in the management of intrafraction motion: the integration of real-time internal position monitoring and multileaf collimator target tracking. International Journal of Radiation: Oncology - Biology - Physics. 74(2), 575-582. [Abstract]
  • Zhou, H., Keall, P., Graves, E. (2009), A bone composition model for Monte Carlo x-ray transport simulations. Medical Physics. 36(3), 1008-1018. [Abstract]
  • Jabbari, K., Keall, P., Seuntjens, J. (2009), Considerations and limitations of fast Monte Carlo electron transport in radiation therapy based on precalculated data. Medical Physics. 36(2), 530-540. [Abstract]
  • Dogan, N., Mihaylov, I., Wu, Y., Keall, P., Siebers, J., Hagan, M. (2009), Monte Carlo dose verification of prostate patients treated with simultaneous integrated boost intensity modulated radiation therapy. Radiation Oncology. 4, 18. [Abstract]

2008

   
  • Poulsen, P., Cho, B., Keall, P. (2008), A method to estimate mean position, motion magnitude, motion correlation, and trajectory of a tumor from cone-beam CT projections for image-guided radiotherapy. International Journal of Radiation Oncology, Biology, Physics. 72(5), 1587-1596. [Abstract]
  • Dieterich, S., Cleary, K., D'Souza, W., Murphy, M., Wong, K., Keall, P. (2008), Locating and targeting moving tumors with radiation beams. Medical Physics. 35(12), 5684-5694. [Abstract]
  • Yamamoto, T., Langner, U., Loo, B., Shen, J., Keall, P. (2008), Retrospective analysis of artifacts in four-dimensional CT images of 50 abdominal and thoracic radiotherapy patients. International Journal of Radiation Oncology, Biology, Physics. 72(4), 1250-1258. [Abstract]
  • Langner, U., Keall, P. (2008), Prospective displacement and velocity-based cine 4D CT. Medical Physics. 35(10), 4501-4512. [Abstract]
  • Poulsen, P., Cho, B., Langen, K., Kupelian, P., Keall, P. (2008), Three-dimensional prostate position estimation with a single x-ray imager utilizing the spatial probability density. Physics in Medicine and Biology. 53(16), 4331-4353. [Abstract]
  • Suh, Y., Weiss, E., Zhong, H., Fatyga, M., Siebers, J., Keall, P. (2008), A deliverable four-dimensional intensity-modulated radiation therapy-planning method for dynamic multileaf collimator tumor tracking delivery. International Journal of Radiation Oncology, Biology, Physics. 71(5), 1526-1536. [Abstract]
  • Suh, Y., Dieterich, S., Cho, B., Keall, P. (2008), An analysis of thoracic and abdominal tumour motion for stereotactic body radiotherapy patients. Physics in Medicine and Biology. 53(13), 3623-3640. [Abstract]
  • Cho, B., Suh, Y., Dieterich, S., Keall, P. (2008), A monoscopic method for real-time tumour tracking using combined occasional x-ray imaging and continuous respiratory monitoring. Physics in Medicine and Biology. 53(11), 2837-2855. [Abstract]
  • George, R., Suh, Y., Murphy, M., Williamson, J., Weiss, E., Keall, P. (2008), On the accuracy of a moving average algorithm for target tracking during radiation therapy treatment delivery. Medical Physics. 35(6), 2356-2365. [Abstract]
  • Keall, P., Arief, I., Shamas, S., Weiss, E., Castle, S. (2008), The development and investigation of a prototype three-dimensional compensator for whole brain radiation therapy. Physics in Medicine and Biology. 53(9), 2267-2276. [Abstract]
  • Sawant, A., Venkat, R., Srivastava, V., Carlson, D., Povzner, S., Cattell, H., Keall, P. (2008), Management of three-dimensional intrafraction motion through real-time DMLC tracking. Medical Physics. 35(5), 2050-2061. [Abstract]
  • Wijesooriya, K., Weiss, E., Dill, V., Dong, L., Mohan, R., Joshi, S., Keall, P. (2008), Quantifying the accuracy of automated structure segmentation in 4D CT images using a deformable image registration algorithm. Medical Physics. 35(4), 1251-1260. [Abstract]
  • Weiss, E., Wijesooriya, K., Keall, P. (2008), Esophagus and spinal cord motion relative to GTV motion in four-dimensional CTs of lung cancer patients. Radiotherapy and Oncology. 87(1), 44-48. [Abstract]
  • Yorke, E., Keall, P., Verhaegen, F. (2008), Anniversary paper: Role of medical physicists and the AAPM in improving geometric aspects of treatment accuracy and precision. Medical Physics. 35(3), 828-839. [Abstract]
  • Weiss, E., Wijesooriya, K., Ramakrishnan, V., Keall, P. (2008), Comparison of intensity-modulated radiotherapy planning based on manual and automatically generated contours using deformable image registration in four-dimensional computed tomography of lung cancer patients. International Journal of Radiation Oncology, Biology, Physics. 70(2), 572-581. [Abstract]
  • Luxton, G., Keall, P., King, C. (2008), A new formula for normal tissue complication probability (NTCP) as a function of equivalent uniform dose (EUD). Physics in Medicine and Biology. 53(1), 23-36. [Abstract]