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博文

目前显示的是标签为“Dosimetry”的博文

Dosimetric Comparison of Volumetric Modulated Arc Therapy (VMAT), 5F Intensity Modulated Radiotherapy (IMRT) and 3D Conformal Radiotherapy (3DCRT) in Rectal Carcinoma Receiving Neoadjuvant Chemoradiotherapy

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53591#.VMnk7CzQrzE Author(s)    Ge Wen 1,2 , Jinshan Zhang 2 , Feng Chi 1 , Li Chen 1 , Sijuan Huang 1 , Shaoqing Niu 1 , Yuanhong Gao 1 , Bixiu Wen 3* , Yujing Zhang 1*   Affiliation(s) 1 Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China . 2 Department of Radiation Oncology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China . 3 Department of Radiation Oncology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China . ABSTRACT Objective: To investigate better dosimetric distribution of volumetric modulated arc therapy (VMAT) vs. 5F intensity modulated radiotherapy (IMRT) and 3D conformal radiotherapy (3DCRT) in patients with locally advanced rectal cancer (LARC)...

Dosimetric Comparison of Fixed and Flexible Geometry ICRT Applicators in Patients Treated for Carcinoma Cervix

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53306#.VLyghMnQrzE Author(s)    Sukhvir Singh , Arti Sarin , Manoj Kumar Semwal * , Ajay Kumar Singh , Pankaj Goyal , Ashok Kumar Affiliation(s) Department of Radiation Oncology, Army Hospital (R&R), Delhi Cantonment, New Delhi, India . ABSTRACT In intracavitary radiotherapy (ICRT) for cancer cervix, applicator geometry has the potential to impact the doses to organs at risk (OARs) and the coverage of the target volume. At our centre two Varian made Fletcher-style applicator sets, namely defined (fixed) geometry and flexible geometry, are used for ICRT. In the present work, the two types of applicators were compared dosimetrically as per the recommendations of the International Commission on Radiation Units and Measurements (ICRU-38) while delivering high dose rate brachytherapy. Twenty four patients who underwent ICRT were considered for this stu...