tailieunhanh - Báo cáo khoa học: " Implications of a high-definition multileaf collimator (HD-MLC) on treatment planning techniques for stereotactic body radiation therapy (SBRT): a planning study"

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: " Implications of a high-definition multileaf collimator (HD-MLC) on treatment planning techniques for stereotactic body radiation therapy (SBRT): a planning study. | Radiation Oncology BioMed Central Research Implications of a high-definition multileaf collimator HD-MLC on treatment planning techniques for stereotactic body radiation therapy SBRT a planning study James A Tanyi 1 2 Paige A Summers3 Charles L McCracken1 Yiyi Chen4 Li-Chung Ku1 and Martin Fuss1 Open Access Address Department of Radiation Medicine Oregon Health Science University Portland OR 97239 USA 2Department of Nuclear Engineering Radiation Health Physics Oregon State University Corvallis OR 97331 USA 3Department of Physics Santa Clara University Santa Clara CA 95053 USA and 4Department of Public Health Preventive Medicine Oregon Health Science University Portland OR 97239 USA Email James ATanyi - tanyij@ Paige A Summers - psummers@ Charles L McCracken - mccrackc@ Yiyi Chen - chenyiy@ Li-Chung Ku - lichungku@ Martin Fuss - fussm@ Corresponding author Published 10 July 2009 Received 17 November 2008 Radiation Oncology 2009 4 22 doi 1748-717X-4-22 Accepted 10 July 2009 This article is available from http content 4 1 22 2009 Tanyi 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 Purpose To assess the impact of two multileaf collimator MLC systems and 5 mm leaf widths on three-dimensional conformal radiotherapy intensity-modulated radiotherapy and dynamic conformal arc techniques for stereotactic body radiation therapy SBRT of liver and lung lesions. Methods Twenty-nine SBRT plans of primary liver n 11 and lung n 18 tumors were the basis of this study. Five-millimeter leaf width 120-leaf Varian Millennium M120 MLC-based plans served as reference and were designed using static conformal beams 3DCRT sliding-window intensity-modulated