Yasser Rashed

Faculty of Medicine, Clinical Oncology and Nuclear Medicine Department, Medical Physics Unit, Menoufia University, Shibin ElKoom, Egypt

Publications

• Research Article   
  Clinical target volume to planning target volume margin assessment for different radiotherapy treatment sites based on the patient set-up errors using electronic portal image device
  Author(s): Mohamed Elsharkawy*, Yasser Rashed, Nasser Abdelbary, Abd El-Azim A. Hussein and A. El-Sersy
  
  Purpose: The purpose of this study was to calculate the Clinical Target Volume (CTV) to Planning Target Volume (PTV) margin as a result of patients’ setup errors of different treatment sites using Electronic Portal Imaging Device (EPID). Methods: Brain, head and neck, breast, lung, bladder, rectum, and prostate were each represented by 30 individuals in this research, for a total of 210 patients. During radiation treatment, set-up errors were measured and collected. The necessary facts were collected to determine the optimal margin for each location to transition from CTV to PTV. Results: The setup errors of thirty brain patients varied between 0.0 and 5.0 mm, whereas those of thirty head and neck patients ranged between 0.0 and 6.0 mm. Setup errors ranged from 0.0 mm to 9.0 mm for thirty breast patients and thirty lung patients. Thirty individuals' bladder diameters fell be.. Read More»
  

  Abstract PDF