著者

Takeshi Takata Akihisa Kataoka Ayaka Yanagawa Kenshiro Shiraishi Jun’ichi Kotoku

出版者

Japan Transcatheter Valve Therapies

雑誌

Journal of Transcatheter Valve Therapies (ISSN:24344532)

巻号頁・発行日

vol.5, no.1, pp.17-23, 2023 (Released:2023-07-19)

参考文献数

15

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Objective: Recently, the number of structural heart disease (SHD) procedures has increased, leading to increased radiation exposure doses of physicians. Information about SHD physicians’ exposure is insufficient to elucidate their degree of exposure. Physicians’ radioprotection is therefore poor or sometimes overly cautious. This study uses quantitative evaluation with a physical simulation to elucidate the exposure dose sustained by physicians during SHD procedures.Methods: The reported Monte Carlo system was used for dose estimation while using statistical sampling to simulate particle interactions in matter. The simulation geometry resembled an actual SHD procedure. Body models were posturally transformed to simulate a physician’s posture for the procedure faithfully and correctly.Results: Doses for the left eye lens in the upper body were about 1.5 times higher than doses for the right eye lens under all fluoroscopic directions. Doses for the left-hand skin were twice those for the right side. Hand skin doses varied depending on the direction. The same applied to doses for abdominal skin.Conclusion: The results of this study suggest that physicians’ exposures differ significantly depending on the fluoroscopic directions. Physicians should understand the dose differences and endeavor to reduce risks posed by self-exposure.