نتایج جستجو برای: craniospinal radiotherapy

تعداد نتایج: 62611  

Hamidreza Baghani, Hossein Gharaati, Seyed Mahmoodreza Aghamiri Seyed Rabie Mahdavi

Introduction: Orthogonal radial fields are those in which the central axes are perpendicular to each other. An example of these orthogonal fields is the set of craniospinal orthogonal fields that are used for radiotherapy of medulloblastoma. Craniospinal radial fields consist of two parallel-opposed fields for brain exposure and one or two posterior spinal fields for spinal cord exposure. The m...

Journal: :iranian journal of radiation research 0
h.r. baghani radiation medicine department, nuclear engineering faculty, shahid beheshti university, tehran, iran s.m.r. aghamiri radiation medicine department, nuclear engineering faculty, shahid beheshti university, tehran, iran h. gharaati radiotherapy physics department, cancer institute of tehran, tehran, iran s.r. mahdavi medical physics department, medical faculty, iran university of medical science, tehran, iran s.m. hosseini daghigh radiation medicine department, nuclear engineering faculty, shahid beheshti university, tehran, iran

background: craniospinal radiotherapy faces technical challenges which are due to the sensitivity of the location in which the gross tumor is, and to organs at risk around planning target volume. using modern treatment planning systems causes a reduction in the complexities of the treatment techniques. the most effective method to assess the dosimetric accuracy and the validity of the software ...

Journal: :iranian journal of medical physics 0
hamidreza baghani ph.d. student, radiation-medicine dept., nuclear engineering faculty, shahid beheshti university, tehran, iran seyed mahmoodreza aghamiri associate professor, radiation-medicine dept., nuclear engineering faculty, shahid beheshti university, tehran, iran hossein gharaati associate professor, medical engineering and physics dept., medical faculty, medical science university of tehran, tehran, iran seyed rabie mahdavi assistant professor, medical physics dept., medical faculty, medical science university of iran, tehran, iran

introduction: orthogonal radial fields are those in which the central axes are perpendicular to each other. an example of these orthogonal fields is the set of craniospinal orthogonal fields that are used for radiotherapy of medulloblastoma. craniospinal radial fields consist of two parallel-opposed fields for brain exposure and one or two posterior spinal fields for spinal cord exposure. the m...

H. Gharaati, H.R. Baghani, S.M. Hosseini Daghigh, S.M.R. Aghamiri, S.R. Mahdavi,

Background: Craniospinal radiotherapy faces technical challenges which are due to the sensitivity of the location in which the gross tumor is, and to organs at risk around planning target volume. Using modern treatment planning systems causes a reduction in the complexities of the treatment techniques. The most effective method to assess the dosimetric accuracy and the validity of the ...

2016
Magdalena Meissner Alfredo Addeo

INTRODUCTION Carcinomatous meningitis in breast cancer occurs as a complication in up to 5% of all cases. It is a very devastating diagnosis, with a median patient survival of about 3 months. Treatment is very controversial, and different modalities of treatment have been used but none of them show significant benefit for overall survival. CASE REPORTS We report 2 cases of carcinomatous menin...

Journal: :Cancer and Oncology Research 2015

2017
Greg Kauffmann Robin A Buerki Rimas V Lukas Vinai Gondi Steven J Chmura

Central nervous system (CNS) involvement is rare but it is an increasingly recognized complication of the multiple myeloma. The craniospinal radiotherapy is a standard treatment option, however, it may be challenging to deliver due to hematologic toxicity in the patients with multiple prior systemic therapies. We report a case of CNS myelomatosis in a patient with prior stem cell transplant mul...

Journal: :Archives of disease in childhood 1988
E A Livesey C G Brook

Ninety three children (51 boys, 42 girls) who had been treated for brain tumours not affecting the hypothalamopituitary axis, were studied for evidence of gonadal dysfunction. All had received cranial irradiation, 59 spinal irradiation, and 28 adjuvant chemotherapy. Mean age at treatment was 6.3 years (range 1.5-15). Mean follow up after completion of radiotherapy was 8.5 years (range 1-27). Pr...

Journal: :Progressive Physics Journal 2023

Craniospinal is known as the method to kill cancer within a wide radiation area, starting from cranial spinal nervous system. In case, has spread through fluid of cerebro spinalis, such medulloblastoma. We carried out research determine isodose curve in medulloblastoma craniospinal patients and DVH (Dose Volume Histogram) statistic OAR (Organ at Risk) by using 3D-CRT radiotherapy technique. To ...

Journal: :International journal of radiation oncology, biology, physics 2012
Ali Mazloom Joseph C Hodges Bin S Teh Murali Chintagumpala Arnold C Paulino

PURPOSE To determine the patient, tumor, and treatment characteristics of patients with pilocytic astrocytoma (PA) and leptomeningeal dissemination (LMD). METHODS AND MATERIALS A PubMed search of English-language studies pertaining to PA with LMD was performed using a combination of keywords that included juvenile pilocytic astrocytoma, low-grade astrocytoma, low-grade glioma, leptomeningeal ...

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