Abstract
This review is aiming to discuss the Radiation related risk of imaging. The present review was conducted by searching in Medline, Embase, Web of Science, Science Direct, BMJ journal and Google Scholar for, researches, review articles and reports, published over the past years. Books published on Radiation related risk of imaging. If several studies had similar findings, we randomly selected one or two to avoid repetitive results. Based on findings and results this review found Radiation doses varied significantly between the different types of CT studies. During follow-up, 74 of 178 604 patients were diagnosed with leukemia and 135 of 176 587 patients were diagnosed with brain tumors. We noted a positive association between radiation dose from CT scans and leukemia. Effective radiation doses for whole-body CT and for CT of the chest, abdomen, and pelvis were calculated using Monte Carlo simulation studies.