[Multicenter Survey of Exposure Dose in Coronary Artery Angiography and IVR].

Nihon Hoshasen Gijutsu Gakkai zasshi Pub Date : 2025-01-01 DOI:10.6009/jjrt.25-1525

Kazuki Maekawa, Masakazu Sato, Toshihiro Hayashi, Ryota Hasegawa, Kazuki Noguchi, Kazuya Takeda, Koushi Sakiyama, Hajime Sakamoto, Osamu Tajima, Hisaya Sato, Eiji Ishikawa

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Abstract

Purpose: In DRLs 2020, in addition to the fluoroscopic dose rate, air kerma at the patient entrance reference point (K_a,r) and air kerma-area product (P_KA) by types of medical treatment and diseases were set as DRL quantity. We surveyed the current equipment setting dose at each facility and the exposure dose in clinical practice. We considered the optimal DRL classification of K_a,r and P_KA for the next DRLs update.

Methods: We conducted a questionnaire survey of 428 facilities in Japan with angiography devices and analyzed the obtained angiography dose data.

Results: Fluoroscopic dose rate, K_a,r, and P_KA were lower values compared to past studies and DRLs 2020 data, and significant differences were observed in K_a,r and P_KA by procedure.

Conclusion: Equipment setting doses have been optimized at each facility, and it is expected that radiological protection will be optimized by setting DRL values that reflect the current situation.

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冠状动脉造影和IVR暴露剂量的多中心调查。

目的：在DRL 2020中，除采用透视剂量率外，还设置患者入口参考点空气角面积（Ka,r）和按医疗类型和疾病类型划分的空气角面积积（PKA）作为DRL量。我们调查了目前各设施的设备设置剂量和临床实践中的暴露剂量。我们考虑了Ka，r和PKA的最佳DRL分类，以便下一次DRL更新。方法：对日本428家有血管造影设备的机构进行问卷调查，并对获得的血管造影剂量数据进行分析。结果：与过去的研究和DRLs 2020数据相比，透视剂量率、Ka、r和PKA的值较低，并且通过操作观察到Ka、r和PKA的显著差异。结论：各设施的设备设置剂量均已优化，期望通过设置反映现状的DRL值来优化放射防护。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Nihon Hoshasen Gijutsu Gakkai zasshi

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