Estudo dosimétrico em profissionais de diferentes IMC durante o exame de tomografia computadorizada utilizando simulação de Monte Carlo

Abstract

Generally, when performing a CT scan, only the patient is exposed to ionizing radiation. However, there are special cases where healthcare professionals (doctors/nurses/radiologists) need to stay in the CT room during the exam. The reasons are monitoring and restraining pediatric patients, special care in multiple trauma patients, performing manual ventilation, among others. The presence of the staff at the exam room, during the exam, leads to the exposure to ionizing radiation. Occupational exposure to radiation can cause biological effects such as dermatitis, skin cancer, leukemia, cataracts, and brain tumors in the professional. In the literature there are few studies about occupational exposure for CT professionals, and there are no studies that use computational tools to evaluate occupational exposure of professionals who accompany the patient during conventional CT examination. Therefore, this work aims to determine and evaluate the doses received by professionals when they are exposed to ionizing radiation during the follow-up of the patients during CT examinations. The dose values will be obtained through Monte Carlo simulation of adult virtual anthropomorphic phantoms representing patients and professionals during different CT scans. With the results of this work, it is intended to determine which positions are the safest, to assist in the awareness and training of professionals regarding radiological protection during CT examinations.