Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Radiation Oncology cung cấp cho các bạn kiến thức về ngành y đề tài: " Functional intercomparison of intraoperative radiotherapy equipment – Photon Radiosurgery System. | Radiation Oncology BioMed Central Research Functional intercomparison of intraoperative radiotherapy equipment - Photon Radiosurgery System Kris S Armoogum John M Parry Salam K Souliman David G Sutton and Colin D Mackay Open Access Address Department of Medical Physics Ninewells Hospital and Medical School Tayside University Hospitals NHS Trust Dundee UK Email Kris S Armoogum - John M Parry - Salam K Souliman - ssouliman@ David G Sutton - Colin D Mackay - cmackay@ Corresponding author Published 27 February 2007 Received 27 June 2006 Accepted 27 February 2007 Radiation Oncology 2007 2 11 doi 1748-717X-2-11 H This article is available from http content 2 1 11 2007 Armoogum et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background Intraoperative Radiotherapy IORT is a method by which a critical radiation dose is delivered to the tumour bed immediately after surgical excision. It is being investigated whether a single high dose of radiation will impart the same clinical benefit as a standard course of external beam therapy. Our centre has four Photon Radiosurgery Systems PRS currently used to irradiate breast and neurological sites. Materials and methods The PRS comprises an x-ray generator control console quality assurance tools and a mobile gantry. We investigated the dosimetric characteristics of each source and its performance stability over a period of time. We investigated half value layer output diminution factor internal radiation monitor IRM reproducibility and depth-doses in water. The half .
