tailieunhanh - Báo cáo khoa học: " Developing and evaluating stereotactic lung RT trials: what we should know about the influence of inhomogeneity corrections on dose"

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: " Developing and evaluating stereotactic lung RT trials: what we should know about the influence of inhomogeneity corrections on dose. | Radiation Oncology BioMed Central Open Access Developing and evaluating stereotactic lung RT trials what we should know about the influence of inhomogeneity corrections on dose Danny Schuring and Coen W Hurkmans Address Catharina-hospital Department of radiotherapy Michelangelolaan 2 box 1350 5602 ZA Eindhoven The Netherlands Email Danny Schuring - Coen W Hurkmans - Corresponding author Published 28 July 2008 Received 29 April 2008 Radiation Oncology 2008 3 21 doi 1748-717X-3-21 Accepted 28 July 2008 This article is available from http content 3 1 21 2008 Schuring and Hurkmans 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 Purpose To investigate the influence of inhomogeneity corrections on stereotactic treatment plans for non-small cell lung cancer and determine the dose delivered to the PTV and OARs. Materials and methods For 26 patients with stage-I NSCLC treatment plans were optimized with unit density UD an equivalent pathlength algorithm EPL and a collapsed-cone CC algorithm prescribing 60 Gy to the PTV. After optimization the first two plans were recalculated with the more accurate CC algorithm. Dose parameters were compared for the three different optimized plans. Dose to the target and OARs was evaluated for the recalculated plans and compared with the planned values. Results For the CC algorithm dose constraints for the ratio of the 50 isodose volume and the PTV and the V20 Gy are harder to fulfill. After recalculation of the UD and EPL plans large variations in the dose to the PTV were observed. For the unit density plans the dose to the PTV varied from to Gy for individual patients. The EPL plans all overestimated the .

TÀI LIỆU LIÊN QUAN
crossorigin="anonymous">
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.