نتایج جستجو برای: 3dcrt

تعداد نتایج: 345  

Journal: :Journal of Cancer Therapy 2023

Introduction: Radiation therapy after breast surgery is an integral part of the treatment early cancer. The goal radiation to achieve best possible coverage planning target volume (PTV), while reducing dose organs at risk (OARs) which are normal tissues whose sensitivity irradiation could cause damage that can lead modification plan. In last decade, oncologist started use Intensity Modulated Ra...

2013
Vassilis Kouloulias Theodoros Kalogeropoulos Kalliopi Platoni John Georgakopoulos George Matsopoulos Dimitris Chaldeopoulos Ivelina Beli Panagiotis Pantelakos Charalambos Asimakopoulos John Kouvaris Nikolaos Kelekis

OBJECTIVE To evaluate the feasibility of the transperineal implementation of biocompatible balloon (Prospace) and the acute toxicity of high dose 3DCRT in patients with localized low risk prostate cancer. MATERIALS AND METHODS Between December 2011 and April 2012, fifteen patients were treated with external 3DCRT consisted of 76-78 Gy in 38-39 daily fractions (2.0 Gy/ fraction). Before 3DCRT,...

2014
Alison Cray Cathy Markham Michelle Ryan Alan Herschtal Samuel Y Ngan Sarat Chander

INTRODUCTION Chemoradiotherapy is the standard of care for anal cancer. Sizeable target volume leads to significant toxicity. We compared four different 3D conformal radiotherapy (3DCRT) techniques with the aim of finding the best technique to achieve the lowest dose to the organs at risk (OAR) without compromising the planning target volume (PTV) coverage. METHODS Fifteen computed tomography...

2018
Joshua R Niska Sameer R Keole Barbara A Pockaj Michele Y Halyard Samir H Patel Donald W Northfelt Richard J Gray Nabil Wasif Carlos E Vargas William W Wong

Background Recent trials in early-stage breast cancer support hypofractionated whole-breast radiotherapy (WBRT) as part of breast-conserving therapy (BCT). Evidence also suggests that radiotherapy (RT) omission may be reasonable for some patients over 70 years. Among radiation-delivery techniques, intensity-modulated RT (IMRT) is more expensive than 3-dimensional conformal RT (3DCRT). Based on ...

Journal: :Asian Pacific journal of cancer prevention : APJCP 2014
Shanmugam Thirumalai Swamy Chandrasekaran Anu Radha Murugesan Kathirvel Gandhi Arun Shanmuga Subramanian

BACKGROUND The purpose of this study was to assess the feasibility of deep inspiration breath-hold (DIBH) based volumetric modulated arc therapy (VMAT) for locally advanced left sided breast cancer patients undergoing radical mastectomy. DIBH immobilizes the tumor bed providing dosimetric benefits over free breathing (FB). MATERIALS AND METHODS Ten left sided post mastectomy patients were imm...

2014
Marcus Sonier Ermias Gete Chris Herbert Michael McKenzie James Murphy Vitali Moiseenko

BACKGROUND Stereotactic Radiosurgery (SRS) is a common tool used to treat Arteriovenous Malformations (AVMs) in anatomical locations associated with a risk of surgical complications. Despite high rates of clinical effectiveness, SRS carries a risk of toxicity as a result of radiation injury to brain tissue. The use of intensity-modulated radiotherapy (IMRT) has increased because it may lead to ...

Journal: :Prilozi 2011
V Krstevska I Stojkovski B Zafirova-Ivanova

The aim of the study was to report the results of radical radiotherapy performed by three-dimensional conformal radiotherapy (3DCRT) for squamous cell carcinoma of the larynx and to compare these data with those obtained with two-dimensional radiotherapy (2DRT) realized with cobalt-60 teletherapy i.e. telecobalt therapy (TCT). Eighty patients with previously untreated laryngeal cancer were irra...

Journal: :Health technology assessment 2010
S Hummel E L Simpson P Hemingway M D Stevenson A Rees

BACKGROUND Prostate cancer (PC) is the most common cancer in men in the UK. Radiotherapy (RT) is a recognised treatment for PC and high-dose conformal radiotherapy (CRT) is the recommended standard of care for localised or locally advanced tumours. Intensity-modulated radiotherapy (IMRT) allows better dose distributions in RT. OBJECTIVE This report evaluates the clinical effectiveness and cos...

2011
Jana Vranova Stepan Vinakurau Jan Richter Miroslav Starec Anna Fiserova Jozef Rosina

BACKGROUND Our research compared whole pelvic (WP) and prostate-only (PO) 3-dimensional conformal radiotherapy (3DCRT) techniques in terms of the incidence and evolution of acute and late toxicity of the rectum and urinary bladder, and identified the PTV-parameters influencing these damages and changes in antitumor immune response. METHODS We analyzed 197 prostate cancer patients undergoing 3...

2010
Maria T. Vlachaki Sanath Kumar

Radiation therapy for advanced Hodgkin's disease often requires large fields and may result in significant exposure of normal tissues to ionizing radiation. In long-term survivors, this may increase the risk for late toxicity including secondary malignancies. 3DCRT has been successfully used to treat this disease but treatment delivery is often complex requiring matching of photon with electron...

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