نتایج جستجو برای: target

تعداد نتایج: 398424  

Journal: :Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology 2014
Panayiotis Mavroidis Drosoula Giantsoudis Musaddiq J Awan Jasper Nijkamp Coen R N Rasch Joop C Duppen Charles R Thomas Paul Okunieff William E Jones Lisa A Kachnic Niko Papanikolaou Clifton D Fuller

PURPOSE The aim of this study is to ascertain the subsequent radiobiological impact of using a consensus guideline target volume delineation atlas. MATERIALS AND METHODS Using a representative case and target volume delineation instructions derived from a proposed IMRT rectal cancer clinical trial, gross tumor volume (GTV) and clinical/planning target volumes (CTV/PTV) were contoured by 13 ph...

2016
Catur Edi Widodo Kusworo Adi Aris Sugiharto Adi Pamungkas

Radiotherapy is a tumor treatment process using high dose of radiation. Hence, it is essential that radiotherapy is carefully planned with a Treatment Planning System (TPS). The first step in TPS is delineation that aims to get a better picture of the tumor and the target volume value. This research investigated volume target delineation for brain tumor against the MRI image of the head in axia...

2012
Janusz Skowronek

The name “Brachytherapy” is derived from ancient Greek words for short distance (brachios) and treatment (therapy) and refers to the therapeutic use of encapsulated radionuclides placed within or close to the tumor. Brachytherapy (BT), used as an integral part of cancer treatment for almost a century, developed in last three decades a rapid growth with the development of afterloading devices an...

2015
Chong-Wen Wang Yang Zhou Jing-Ping Bai Hao Liu Yan Liu Guang-Li Shi Jiao-Jiao Ding Dong-Hui Ma Wen-Ting Li Peng-Ming Xie Yue Yan

BACKGROUND In this study, we aimed to establish the rabbit VX2 limb tumor model, and then prepare a "necrotic zone" as a safe margin by volumetric modulated arc therapy and simultaneous integrated boost (VMAT-SIB) technique applied in the areas where the tumor is located adjacent to the bone (GTVboost area). MATERIAL AND METHODS Rabbits in the control group (n=10) were not treated, while thos...

2016
André Toussaint Anne Richter Frederick Mantel John C. Flickinger Inga Siiner Grills Neelam Tyagi Arjun Sahgal Daniel Letourneau Jason P. Sheehan David J. Schlesinger Peter Carlos Gerszten Matthias Guckenberger

BACKGROUND The aim of this study was to quantify the variability in spinal radiosurgery (SRS) planning practices between five international institutions, all member of the Elekta Spine Radiosurgery Research Consortium. METHODS Four institutions provided one representative patient case each consisting of the medical history, CT and MR imaging. A step-wise planning approach was used where, afte...

Journal: :Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology 2005
Christine Haie-Meder Richard Pötter Erik Van Limbergen Edith Briot Marisol De Brabandere Johannes Dimopoulos Isabelle Dumas Taran Paulsen Hellebust Christian Kirisits Stefan Lang Sabine Muschitz Juliana Nevinson An Nulens Peter Petrow Natascha Wachter-Gerstner

BACKGROUND AND PURPOSE Brachytherapy (BT) plays a crucial role in the management of invasive cervix cancer from stage I to IV. Intracavitary techniques are based on afterloading devices, with different types of applicators. CT and/or MRI compatible applicators allow a sectional image based approach with a better assessment of gross tumour volume (GTV) and definition and delineation of target vo...

Journal: :Clinical oncology (Royal College of Radiologists (Great Britain)) 2006
S Nangia K S Chufal V Arivazhagan P Srinivas A Tyagi D Ghosh

AIMS To review the Batra Hospital and Medical Research Centre experience of using compensator-based intensity-modulated radiotherapy (IMRT) to treat head and neck cancer. MATERIALS AND METHODS Between October 2003 and August 2004, 18 patients underwent IMRT for head and neck cancer at our institution. IMRT was delivered using partial transmission high-resolution compensator blocks. RESULTS ...

Journal: :Journal of the Royal Society of Medicine 2004

Journal: :Current Anthropology 2019

Journal: :Nature Reviews Cancer 2011

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