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http://dx.doi.org/10.7742/jksr.2021.15.4.445

Dose Reduction Effect by using Compression Band during Chest CT Examination in Female Patients  

Kim, In Soo (Department of Radiology, Dongnam Institute of Radiological & Medical Sciences Cancer center)
Cho, Yong In (Department of Radiology, Dongnam Institute of Radiological & Medical Sciences Cancer center)
Publication Information
Journal of the Korean Society of Radiology / v.15, no.4, 2021 , pp. 445-453 More about this Journal
Abstract
CT scan is reported to have a high risk of cancer due to a relatively high dose among medical radiological examinations. In particular, exposure to radiation to the breast, which is sensitive to radiation, is inevitable during a chest CT scan for female patient. In this study, the dose reduction effect of wearing a compression band during chest CT scans in women was evaluated, and the lifetime attributable risk due to the effective dose exposed during the CT scan was estimated. As a result, when the compression band was used, the effective tube current decreased as the outer perimeter of the chest became smaller, and it was analyzed that the CT dose index and effective dose were also reduced. In addition, the lifetime attributable risk by chest CT scan was found to reduce the cancer risk by 3.2 per 100,000 for all cancers, 0.2 per 100,000 for solid cancer, and 0.8 per 100,000 for breast cancer, based on women in their 30s when using a compression band. It is judged that the risk of cancer can be reduced through the use of appropriate scan parameters and dose optimization measures such as compression bands for future CT examinations.
Keywords
Chest CT; Compression band; Dose optimization; Lifetime attributable risk;
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