نتایج جستجو برای: 3d conformal radiotherapy

تعداد نتایج: 267969  

2014
Jérôme Krayenbuehl Peter Dimmerling I Frank Ciernik Oliver Riesterer

BACKGROUND Radiotherapy (RT) is currently under investigation as part of a trimodality treatment of malignant pleural mesothelioma (MPM). The introduction of highly conformal radiotherapy (HCRT) technique improved dose delivery and target coverage in comparison to 3-dimensional conformal radiotherapy (3DCRT). The following study was undertaken to investigate the clinical outcome of both radiati...

Journal: :iranian journal of radiation research 0
m. robatjazi department of medical physics, tehran university of medical sciences, tehran, iran s.r. mahdavi department of medical physics, iran university of medical sciences, tehran, iran a.r. nikofar department of radiation oncology, iran university of medical sciences, tehran, iran b. bolouri department of medical physics, iran university of medical sciences, tehran, iran h.r. baghani department of medical radiation engineering, shahid beheshti university, tehran, iran

background: for the purpose of individual clinical target volume assessment in radiotherapy of prostate cancer, mrsi was used as a molecular imaging modality with mri and ct images. materials and methods: the images of 20 prostate cancer patients were used in this study. the mr and mrsi images were registered with ct ones using non-rigid registration technique. the ct based planning (bp), ct/mr...

2010
Yu-Feng Ren Yuan-Hong Gao Xin-Ping Cao Wei-Jun Ye Bin S Teh

BACKGROUND To compare the results of external beam radiotherapy in combination with 3D- computed tomography (CT)-implanted interstitial high dose rate brachytherapy (ERT/3D-HDR-BT) versus conventional external beam radiotherapy (ERT) for the treatment of stage T2b nasopharyngeal carcinoma (NPC). METHODS Forty NPC patients diagnosed with stage T2b NPC were treated with ERT/3D-HDR-BT under loca...

Journal: :Annals of oncology : official journal of the European Society for Medical Oncology 2013
C Le Péchoux E Musat C Baey H Al Mokhles P Terrier J Domont A Le Cesne A Laplanche S Bonvalot

BACKGROUND As most patients with retroperitoneal sarcomas (RPS) die of local recurrence, front-line aggressive surgery (FAS) has been developed, and it seems to achieve better local control. The aim of this study was to evaluate conformal postoperative radiotherapy (PORT) in patients who had enlarged surgery. PATIENTS AND METHODS Between 1994 and 2008, 110 patients with primary RPS mainly ope...

2012
Farshad Foroudi Lesley Wilson Mathias Bressel Annette Haworth Colin Hornby Daniel Pham Jim Cramb Suki Gill Keen Hun Tai Tomas Kron

BACKGROUND To compare 3 Dimensional Conformal radiotherapy (3D-CRT) with Intensity Modulated Radiotherapy (IMRT) with Volumetric-Modulated Arc Therapy (VMAT) for bladder cancer. METHODS Radiotherapy plans for 15 patients with T2-T4N0M0 bladder cancer were prospectively developed for 3-DCRT, IMRT and VMAT using Varian Eclipse planning system. The same radiation therapist carried out all planni...

2015
Ning-Ning Lu Jing Jin Shu-Lian Wang Wei-Hu Wang Yong-Wen Song Yue-Ping Liu Hua Ren Hui Fang Xin-Fan Liu Zi-Hao Yu Ye-Xiong Li

BACKGROUND The aim of this study was to evaluate the survival outcomes and toxicity of postoperative chemoradiotherapy with capecitabine and concurrent intensity-modulated radiotherapy (IMRT) or three-dimensional conformal radiotherapy (3D-CRT) in patients with stage II and III rectal cancer. PATIENTS We recruited 184 patients with pathologically proven, stage II or III rectal cancer. Followi...

2017
Sun Hyun Bae Dong Wook Kim Mi-Sook Kim Myung-Hee Shin Hee Chul Park Do Hoon Lim

PURPOSE To determine the optimal radiotherapy technique for gastric mucosa-associated lymphoid tissue lymphoma (MALToma), we compared the dosimetric parameters and the risk of solid secondary cancer from scattered doses among anterior-posterior/posterior-anterior parallel-opposed fields (AP/PA), anterior, posterior, right, and left lateral fields (4_field), 3-dimensional conformal radiotherapy ...

2017
Rachel McCarroll Bassem Youssef Beth Beadle Maureen Bojador Rex Cardan Robin Famiglietti David Followill Geoffrey Ibbott Anuja Jhingran Christoph Trauernicht Peter Balter Laurence Court

Purpose More than 6,500 megavoltage teletherapy units are needed worldwide, many in low-resource settings. Cobalt-60 units or linear accelerators (linacs) can fill this need. We have evaluated machine performance on the basis of patient throughput to provide insight into machine viability under various conditions in such a way that conclusions can be generalized to a vast array of clinical scen...

Journal: :Indonesian Journal of Cancer 2022

Introduction: Nasopharyngeal cancer (NPC) is a prevalent diagnosis of head and neck cancers (HNC) in Asia. In Indonesia, it estimated that there are 12,000 new cases per year. Case Presentation: The author reports 25-year-old male patient with recurrent NPC. This was first diagnosed NPC stage IVB 2013 treated by chemoradiation. 2016, he found another mass his neck. biopsy result showed the recu...

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