نتایج جستجو برای: dimensional conformal radiotherapy

تعداد نتایج: 475244  

Journal: :Journal of the Egyptian National Cancer Institute 2009
Nesreen Ahmad Gerges Attia Ehsan El-Ghoneimy Aida Radwan Samy El-Badawy

OBJECTIVES In pediatric radiotherapy, the enhanced radiosensitivity of the developing tissues combined with the high overall survival, raise the possibility of late complications. The present study aims at comparing two dimensional (2D) and three dimensional (3D) planning regarding dose homogeneity within target volume and dose to organs at risk (OARs) to demonstrate the efficacy of 3D in decre...

2017
Lina Fan Xuegang Hu Shihan Lin Wentu Zhou Sheng Fu Hongbing Lv

OBJECTIVES The objectives of this study were to assess the clinical effects of an integrated program consisting of concurrent preoperative combined paclitaxel and nedaplatin chemotherapy and three-dimensional conformal radiotherapy followed by surgery intended to cure oral squamous cell carcinoma and to determine whether this integrated program is feasible and effective with respect to the trea...

Journal: :Chemical senses 2015
Giuseppe Riva Luca Raimondo Mattia Ravera Francesco Moretto Monica Boita Ilenia Potenza Monica Rampino Umberto Ricardi Massimiliano Garzaro

Intensity-modulated radiation therapy (IMRT) for nasopharyngeal cancer (NPC) allowed a better distribution of the dose to the tumor volume, sparing surrounding structures. Aim of the study is the objective evaluation of olfactory and gustatory impairments in patients who underwent chemo-radiotherapy for NPC. Correlation between smell and taste alterations, xerostomy, and radiation technique was...

2015
Francesco Perri Salvatore Pisconti Manuel Conson Roberto Pacelli Giuseppina Della Vittoria Scarpati Antonio Gnoni Carmine D’Aniello Carla Cavaliere Antonella Licchetta Laura Cella Mario Giuliano Concetta Schiavone Sara Falivene Giuseppe Di Lorenzo Carlo Buonerba Vincenzo Ravo Paolo Muto

BACKGROUND The clinical benefits of postoperative radiation therapy (PORT) for patients with thymoma are still controversial. In the absence of defined guidelines, prognostic factors such as stage, status of surgical margins, and histology are often considered to guide the choice of adjuvant treatment (radiotherapy and/or chemotherapy). In this study, we describe our single-institution experien...

Journal: :Genetics and molecular research : GMR 2015
P Wei Z H Zhang L Li X L Du C P Shan X G Sheng

This retrospective study aimed to observe the cura-tive effect and adverse reactions of three-dimensional conformal radiotherapy combined with topotecan chemotherapy in patients with platinum-resistant recurrent epithelial ovarian carcinoma. The chemoradiotherapy group (N = 22) received 15 mv X-rays with 1.8 to 2.0 Gy/f/d radiation, 5 times per week. The total dose was 45 to 65 Gy; the median d...

A. Chakraborty, A. Shiva B, B. Goswami, P. Goswami, P. Kumari, P. Nagendran, S. Banerjee, S. Mitra, S. Mukherjee,

Background: Identify the optimal technique of radiotherapy for patients with high grade glioma. Our initial year of experience with RapidArc radiation therapy. Materials and Methods: Planning CT scans of 50 patients with grade IV glioma were reviewed and three plan sets by 3D Conformal Radiotherapy (3DCRT), Intensity Modulated Radiotherapy (IMRT) and Rapid Arc (RA) were generated and the plans ...

Journal: :International journal of radiation oncology, biology, physics 2008
Montserrat Ferrer José Francisco Suárez Ferran Guedea Pablo Fernández Víctor Macías Alfonso Mariño Asunción Hervas Ismael Herruzo María José Ortiz Humberto Villavicencio Jordi Craven-Bratle Olatz Garin Ferran Aguiló

PURPOSE To compare treatment impact on health-related quality of life (HRQL) in patients with localized prostate cancer, from before treatment to 2 years after the intervention. METHODS AND MATERIALS This was a longitudinal, prospective study of 614 patients with localized prostate cancer treated with radical prostatectomy (134), three-dimensional external conformal radiotherapy (205), and br...

2013
Charlotte Sale Phillip Moloney Maitham Mathlum

INTRODUCTION Patients with anal canal carcinoma treated with standard conformal radiotherapy frequently experience severe acute and late toxicity reactions to the treatment area. Roohipour et al. (Dis Colon Rectum 2008; 51: 147-53) stated a patient's tolerance of chemoradiation to be an important prediction of treatment success. A new intensity modulated radiation therapy (IMRT) technique for a...

Journal: :Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology 2007
Philip Poortmans Alberto Bossi Katia Vandeputte Mathieu Bosset Raymond Miralbell Philippe Maingon Dirk Boehmer Tom Budiharto Zvi Symon Alfons C M van den Bergh Christopher Scrase Hendrik Van Poppel Michel Bolla

The appropriate application of 3-D conformal radiotherapy, intensity modulated radiotherapy or image guided radiotherapy for patients undergoing post-operative radiotherapy for prostate cancer requires a standardisation of the target volume definition and delineation as well as standardisation of the clinical quality assurance procedures. Recommendations for this are presented on behalf of the ...

Journal: :Medical dosimetry : official journal of the American Association of Medical Dosimetrists 2014
Nima Nabavizadeh Anna O Simeonova Joseph G Waller Jeanna L Romer Debra L Monaco David A Elliott James A Tanyi Martin Fuss Charles R Thomas John M Holland

Volumetric-modulated arc radiotherapy (VMAT) is an iteration of intensity-modulated radiotherapy (IMRT), both of which deliver highly conformal dose distributions. Studies have shown the superiority of VMAT and IMRT in comparison with 3-dimensional conformal radiotherapy (3D-CRT) in planning target volume (PTV) coverage and organs-at-risk (OARs) sparing. This is the first study examining the be...

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