Ali Akhavan
Department of Radiation Oncology, Seyed Al-Shohada Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
[ 1 ] - Comparison of PET/CT and CT-based tumor delineation and its effects on the radiation treatment planning for non-small cell lung cancer
Introduction: Tumor volume delineation is the most important step in the radiation treatment planning. In this study the impact of PET/CT data on the tumor delineation precision of non-small cell lung cancer (NSCLC) was investigated. Methods: PET/CT images of 20 patients with primary NSCLC were obtained and imported to the treatment planning system for im...
[ 2 ] - بکارگیری مدل مخاطرات متناسب کاکس در شناسایی عوامل موثر بر بقای بیماران مبتلا به متاستاز مغزی
Abstract Background : The aim of this study is to determine of risk factors in patients with brain metastases, and prognostic factors affecting survival of patients by using the Cox proportional hazards model. Methods : This descriptive - analytic retrospective study was performed on 197 patients with brain metastases who Referred to Shahid Ramezanzadeh Radiation Center, Yazd, Iran. Several ris...
[ 3 ] - Comparison and Evaluation of Different Treatment Plans with IFRT Field and 6 and 18 MV Energies in Hodgkin’s Lymphoma Involvement Neck and Mediastinum
Background: Radiotherapy with large mantle field is an effective technique in increasing the risk of secondary cancers among HL (Hodgkin Lymphoma) patients; therefore, it is essential to choose an effective treatment field including the least medical conditions in radiotherapy.Objective: The present study aimed to plan separate fields for neck and mediastinum using various energies, to compare ...
[ 4 ] - Investigation of HER-2 expression and its Correlation with clinicopathological parameters and overall survival of esophageal squamous cell carcinoma patients
Background & Objective: Human epidermal growth factor receptor 2 (HER-2) exhibits a vast range of expression in esophageal squamous...
Co-Authors