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Online in vivo dosimetry in high dose rate prostate brchytherapy with MOSkin detectors: In phantom feasibility study
Affiliation:1. Department of Physics, Università degli Studi di Milano and INFN, Milan, Italy;2. Medical Physics Unit, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy;3. Centre for Medical Radiation Physics, University of Wollongong, Wollongong, NSW, Australia;1. Universidad Autónoma Metropolitana, Mexico;2. Universidad Autonoma de Zacatecas, Unidad Academica de Estudios Nucleares, MEXICO;3. Universidad Autónoma Metropolitana-Iztapalapa, MEXICO;1. Graduate School of Health Sciences, Kumamoto University, 4-24-1 Kuhonji, Kumamoto, Japan;2. Department of Health Sciences, Faculty of Life Sciences, Kumamoto University, 4-24-1 Kuhonji, Kumamoto, Japan;1. Centre for Medical Radiation Physics, University of Wollongong, Australia;2. Liverpool and Macarthur Cancer Therapy Centres and the Ingham Institute, Liverpool Hospital, Australia;3. Department of Radiation Oncology, Calvary Mater Newcastle Hospital, Australia;4. School of Health Sciences, University of Newcastle, Australia;5. The Crown Princess Mary Cancer Centre, Westmead, Australia;6. Peter MacCallum Cancer Centre, Melbourne, Australia;7. Prince of Wales Hospital, Randwick, Australia;8. Institute of Medical Physics, University of Sydney, Australia;9. South Western Clinical School, University of New South Wales, Australia;1. Department of Radiation Oncology and Experimental Cancer Research, Ghent University, Ghent, Belgium;2. Department of Radiation Oncology, Medical University of Vienna/AKH Wien, Vienna, Austria;3. Christian Doppler Laboratory for Medical Radiation Research for Radiation Oncology, Medical University of Vienna, Vienna, Austria;1. Center for Nuclear Technologies, Technical University of Denmark, Frederiksborgvej 399, DK-4000 Roskilde, Denmark;2. Radiotherapy Research Unit, Department of Oncology, Herlev Hospital, University of Copenhagen, Herlev Ringvej 75, DK-2730 Herlev, Denmark
Abstract:MOSkin detectors were studied to perform real-time in vivo dose measurements in high dose rate prostate brachytherapy. Measurements were performed inside an urethral catheter in a gel phantom simulating a real prostate implant. Measured and expected doses were compared and the discrepancy was found to be within 8.9% and 3.8% for single MOSkin and dual-MOSkin configurations, respectively. Results show that dual-MOSkin detectors can be profitably adopted in prostate brachytherapy treatments to perform real-time in vivo dosimetry inside the urethra.
Keywords:High dose rate  Prostate brachytherapy  MOSFET
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