tailieunhanh - Báo cáo khoa học: " Dose reduction to normal tissues as compared to the gross tumor by using intensity modulated radiotherapy in thoracic malignancies"

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: " Dose reduction to normal tissues as compared to the gross tumor by using intensity modulated radiotherapy in thoracic malignancies. | Radiation Oncology BioMed Central Open Access Methodology Dose reduction to normal tissues as compared to the gross tumor by using intensity modulated radiotherapy in thoracic malignancies Tejinder Kataria 1 Sheh Rawat1 SN Sinha2 C Garg1 NK Bhalla1 and PS Negi2 Address Department of Radiation Oncology Rajiv Gandhi Cancer Institute and Research Center N. Delhi India and 2Department of Medical Physics Rajiv Gandhi Cancer Institute and Research Center N. Delhi India Email Tejinder Kataria - t_kataria@ Sheh Rawat - shehrawat@ SN Sinha - sujitnsinha@ C Garg - charuashoo@ NK Bhalla - narendra_bhalla@ PS Negi - prit2negi@ Corresponding author Published 29 August 2006 Received II May 2006 Radiation Oncology 2006 1 31 doi 1748-717X-1-31 Accepted 29 August 2006 This article is available from http content 1 1 31 2006 Kataria 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 and purpose Intensity modulated radiotherapy IMRT is a powerful tool which might go a long way in reducing radiation doses to critical structures and thereby reduce long term morbidities. The purpose of this paper is to evaluate the impact of IMRT in reducing the dose to the critical normal tissues while maintaining the desired dose to the volume of interest for thoracic malignancies. Materials and methods During the period January 2002 to March 2004 12 patients of various sites of malignancies in the thoracic region were treated using physical intensity modulator based IMRT. Plans of these patients treated with IMRT were analyzed using dose volume histograms. Results An average dose reduction of the mean values by 73 to the heart 69 to the right .

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