Semiconductor real-time quality assurance dosimetry in brachytherapy

Publication date: Available online 28 September 2017
Source:Brachytherapy
Author(s): Mauro Carrara, Dean Cutajar, Saree Alnaghy, Anthony Espinoza, Anna Romanyukha, Stefano Presilla, Chiara Tenconi, Annamaria Cerrotta, Carlo Fallai, Mitra Safavi-Naeini, Marco Petasecca, Alannah Kejda, Michael Lerch, Stéphanie Corde, Michael Jackson, Andrew Howie, Joseph Bucci, Anatoly B. Rosenfeld
With the increase in complexity of brachytherapy treatments, there has been a demand for the development of sophisticated devices for delivery verification. The Centre for Medical Radiation Physics (CMRP), University of Wollongong, has demonstrated the applicability of semiconductor devices to provide cost-effective real-time quality assurance for a wide range of brachytherapy treatment modalities. Semiconductor devices have shown great promise to the future of pretreatment and in vivo quality assurance in a wide range of brachytherapy treatments, from high-dose-rate (HDR) prostate procedures to eye plaque treatments. The aim of this article is to give an insight into several semiconductor-based dosimetry instruments developed by the CMRP. Applications of these instruments are provided for breast and rectal wall in vivo dosimetry in HDR brachytherapy, urethral in vivo dosimetry in prostate low-dose-rate (LDR) brachytherapy, quality assurance of HDR brachytherapy afterloaders, HDR pretreatment plan verification, and real-time verification of LDR and HDR source dwell positions.



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