نتایج جستجو برای: 2Dand3D dimensional radiotherapy

تعداد نتایج: 459156  

Journal: :middle east journal of cancer 0
doaa ali sharaf eldeen clinical oncology and nuclear medicine department, faculty of medicine, mansoura university, mansoura, egypt eman abd elkareem toson clinical oncology and nuclear medicine department, faculty of medicine, mansoura university, mansoura, egypt maiy abd elraheem alshahat clinical oncology and nuclear medicine department, faculty of medicine, mansoura university, mansoura, egypt ahmed nageeb taha neurosurgery department, faculty of medicine, mansoura university. mansoura, egypt

background : this study determines the efficacy and tolerability of hypofraction- ated three-dimensional conformal radiotherapy in conjunction with daily temozolomide in treatment of previously irradiated recurrent malignant glioma. methods :we enrolled 21 patients diagnosed with recurrent or progressive malignant glioma who previously underwent external beam irradiation. all patients had hypof...

Journal: :iranian journal of radiology 0
abbas arjmand shabestari shahid beheshtiuniversity of medical sciences,tehran, iran robab anbiaee taraneh faghihi langroudi shahid beheshtiuniversity of medical sciences,tehran, iran hooman bakhshandeh shahid beheshtiuniversity of medical sciences,tehran, iran maryam heydari-sooreshjaany shahid beheshtiuniversity of medical sciences,tehran, iran

results no correlation between as and history of rt, rt-to-follow-up time interval, laterality of bc, framingham’s 10-year risk score or traditional cad risk factors were detected. increase in cacs related to the senile atherosclerotic process was shown (p < 0.001). conclusions no difference between cacs was noted between bc patients with a history of 3d-crt and the non-bc women without a histo...

اصفهانی, مهبد , حداد, پیمان , سمیعی, فرهاد , عصمتی, ابراهیم , عقیلی, مهدی , مشتاقی, مریم , ندائی, حسنعلی ,

Background: The current standard of adjuvant management for gastric cancer after curative resection based on the results of intergroup 0116 is concurrent chemoradiation. Current guidelines for designing these challenging fields still include two-dimensional simulation with simple AP-PA parallel opposed design. However, the implementation of radiotherapy (RT) remains a concern. Our objective was...

Journal: :iranian journal of radiation research 0
a.k. bhardwaj 1department of radiotherapy, post-graduate institute of medical education and research, chandigarh, 160012 india t.s. kehwar 2department of radiation oncology, university of pittsburgh cancer institute, pittsburgh, pennsylvania, usa s.k. chakarvarti department of applied physics, national institute of technology, kurukshetra, 136119 india a.s. oinam 1department of radiotherapy, post-graduate institute of medical education and research, chandigarh, 160012 india s.c. sharma 1department of radiotherapy, post-graduate institute of medical education and research, chandigarh, 160012 india

background: to analyze the dosimetric and radio biologic advantages between intensity modulated radiotherapy (imrt) and 3 dimensional conformal radiotherapy (3dcrt) and selection of optimal photon energy for imrt treatments. material and methods: 24 patients with localized prostate carcinoma were planned for 3dcrt and imrt techniques. radiation dose of 54 gy with 2 gy/fraction, was planned to p...

C. Andaloro, F. Gigante, I. La Mantia,

Background: Salivary glands (SGs) are usually irradiated during radiotherapy for head and neck cancers, which may lead to radiation-induced changes. These changes could be evaluated safely by ultrasonography; however, there have been few studies in this regard. Thus, we aimed to investigate the changes in post-radiotherapy submandibular glands using ultrasonography in patients undergoing head-n...

Journal: :Tumori 2007
Renata Soumarová Lubos Homola Hana Perková Miroslav Stursa

AIMS AND BACKGROUND Radiotherapy represents one of the basic therapeutic methods in treatment of localized carcinoma of the prostate. Optimal irradiation dose is the cornerstone of a successful treatment. Along with local control of the disease and overall survival of the patient, possible acute and long-term side effects need to be monitored very closely. METHODS A non-randomized prospective...

A.K. Bhardwaj, A.S. Oinam, S.C. Sharma, S.K. Chakarvarti, T.S. Kehwar,

 Background: To analyze the dosimetric and radio biologic advantages between intensity modulated radiotherapy (IMRT) and 3 dimensional conformal radiotherapy (3DCRT) and selection of optimal photon energy for IMRT treatments. Material and methods: 24 patients with localized prostate carcinoma were planned for 3DCRT and IMRT techniques. Radiation dose of 54 Gy with 2 Gy/fraction, was planned to ...

2014
Volker Rudat Alaa Nour Abdul Aziz Alaradi Adel Mohamed Saleh Altuwaijri

PURPOSE The purpose of this study was to compare the surface dose of 7-field IMRT (7 F-IMRT), tangential beam IMRT (TB-IMRT), and tangential beam 3D-CRT (3D-CRT) of breast cancer patients receiving adjuvant radiotherapy by means of in vivo GafChromic film dosimetry. MATERIAL AND METHODS Breast cancer patients receiving adjuvant radiotherapy of the whole breast or the chest wall were eligible ...

C.H. Xie, D.Z. Jiang, H. Liu, J. Zhang, X.T. Huang, Y.F. Zhou, Z.R. Bao,

Background: Cone-beam computed tomography (CBCT) scanners for image-guided radiotherapy are in clinical use today, but there has been no consensus on uniform acceptance to verify the CBCT image quality yet. The present work proposed new methods to fully evaluate the performance of CBCT in its three-dimensional (3D) reconstruction space. Materials and Methods: Compared to the traditional methods...

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