Volume 52, Number 2, April–June 2017
|Page(s)||81 - 86|
|Published online||27 February 2017|
Estimating risk of exposure induced cancer death in patients undergoing computed tomography pulmonary angiography
Medical Physics Department, Shahid Sadoughi University of Medical Sciences,
2 Technology of Radiology Department, Isfahan University of Medical Sciences, Isfahan, Iran
⁎ Corresponding author: firstname.lastname@example.org
Accepted: 5 December 2016
The purpose of the study is to estimate the risk of exposure-induced cancer death (REID) values for computed tomography pulmonary angiography (CTPA) examination. During the study period, 152 patients (77 women and 75 men) were referred for evaluation of suspected pulmonary embolism with CTPA examination. Organ doses and the effective dose were calculated by means of Monte Carlo simulations for each patient. The REID values were estimated for CTPA, using models developed in the Biological Effects of Ionizing Radiation VII − Phase 2 report. The REID values varied from 53 to 248 per million depending on the age and gender of patients. These values were considerably higher for females (173 ± 61 per million) than males (82 ± 26 per million) and higher for younger than older patients. The REID values changed with age at exposure by a about factor of 3–5 between the ages of 18 year and 89 year. Results of this study will help the referring physicians to weigh medical benefits of CTPA in clinical practice against possible risks to justify each CTPA decision in order to reduce unnecessary examinations or use alternative imaging modalities with low risk.
Key words: computed tomography / angiography / Monte Carlo simulations / radiation risk
© EDP Sciences 2017
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.