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]
• 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]
• 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]

2011

• 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]
• 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]
• 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]
• 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]
• 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]
• 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]
• Ruan, D., Keall, P. (2011), Dynamic multileaf collimator control for motion adaptive radiotherapy: an optimization approach. United States: (IEEE) Institute of Electrical and Electronics Eng, .
• 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]
• 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]

2007

• Chetty, I., Curran, B., Cygler, J., DeMarco, J., Ezzell, G., Faddegon, B., Kawrakow, I., Keall, P., Liu, H., Ma, C., Rogers, D., Seuntjens, J., Sheikh-Bagheri, D., Siebers, J. (2007), Report of the AAPM Task Group No. 105: Issues associated with clinical implementation of Monte Carlo-based photon and electron external beam treatment planning. Medical Physics. 34(12), 4818-4853. [Abstract]
• Heath, E., Collins, D., Keall, P., Dong, L., Seuntjens, J. (2007), Quantification of accuracy of the automated nonlinear image matching and anatomical labeling (ANIMAL) nonlinear registration algorithm for 4D CT images of lung. Medical Physics. 34(11), 4409-4421. [Abstract]
• Graves, E., Zhou, H., Chatterjee, R., Keall, P., Gambhir, S., Contag, C., Boyer, A. (2007), Design and evaluation of a variable aperture collimator for conformal radiotherapy of small animals using a microCT scanner. Medical Physics. 34(11), 4359-4367. [Abstract]
• Xing, L., Siebers, J., Keall, P. (2007), Computational challenges for image-guided radiation therapy: framework and current research. Seminars in Radiation Oncology. 17(4), 245-257. [Abstract]
• Keall, P., Vedam, S., George, R., Williamson, J. (2007), Respiratory regularity gated 4D CT acquisition: concepts and proof of principle. Australasian Physical & Engineering Sciences in Medicine. 30(3), 211-220. [Abstract]
• Weiss, E., Ramakrishnan, V., Keall, P. (2007), Is there a selection bias in radiotherapy dose-escalation protocols?. International Journal of Radiation Oncology, Biology, Physics. 68(5), 1359-1365. [Abstract]
• Suh, Y., Dieterich, S., Keall, P. (2007), Geometric uncertainty of 2D projection imaging in monitoring 3D tumor motion. Physics in Medicine and Biology. 52(12), 3439-3454. [Abstract]
• Keall, P., Lauve, A., Hagan, M., Siebers, J. (2007), A strategy to correct for intrafraction target translation in conformal prostate radiotherapy: simulation results. Medical Physics. 34(6), 1944-1951. [Abstract]
• Li, X., Keall, P., Orton, C. (2007), Point/counterpoint. Respiratory gating for radiation therapy is not ready for prime time. Medical Physics. 34(3), 867-870. [Abstract]
• Keall, P., Webb, S. (2007), Optimum parameters in a model for tumour control probability, including interpatient heterogeneity: evaluation of the log-normal distribution. Physics in Medicine and Biology. 52(1), 291-302. [Abstract]
• Weiss, E., Siebers, J., Keall, P. (2007), An analysis of 6-MV versus 18-MV photon energy plans for intensity-modulated radiation therapy (IMRT) of lung cancer. Radiotherapy and Oncology. 82(1), 55-62. [Abstract]
• Weiss, E., Wijesooriya, K., Dill, S., Keall, P. (2007), Tumor and normal tissue motion in the thorax during respiration: Analysis of volumetric and positional variations using 4D CT. International Journal of Radiation Oncology, Biology, Physics. 67(1), 296-307. [Abstract]