[National Survey on System Settings of Angiography for Endovascular Treatment for Lower Extremity Arterial Disease].

Nihon Hoshasen Gijutsu Gakkai zasshi Pub Date : 2025-01-01 DOI:10.6009/jjrt.25-1530

Yuji Sakai, Tomomichi Ishibashi, Yoshinori Takao, Toru Ishibashi, Yudai Fujimoto, Mitsuharu Osawa, Akihiro Shinobu, Kenji Hasegawa, Hajime Sakamoto

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Abstract

Purpose: The objective of this study was to determine the standard settings of the angiography system during EVT in Japan.

Methods: Survey requests were mailed to 493 facilities across Japan. The survey items included in the survey were system display dose setting of fluoroscopy dose (FL dose)/digital angiography dose (DA dose)/digital subtraction angiography dose (DSA dose), detector size, fluoroscopy pulse rate, DA/DSA frame rate, and standard additional filter settings. The number of valid responses for each item was system display dose setting: 187 systems (128 institutions), detector size: 187 systems (128 institutions), fluoroscopy pulse rate and DA/DSA frame rate: 185 systems (127 institutions), standard additional filter settings: 182 systems (125 institutions).

Results: Median (interquartile range) of each system display dose setting was FL: 5.9 (4.2-7.8) mGy/min, DA: 0.10 (0.06-0.16) mGy/frame, DSA: 0.82 (0.64-1.40) mGy/frame. The detector size for dose measurements was 103 systems (55%) with a diagonal of 35 cm or less and 84 systems (45%) with a diagonal of more than 35 cm. The most used FL pulse rate was 7.5 pulse/s (132 systems: 71%), DA frame rate was 7.5 frame/s (72 systems: 39%), and DSA frame rate was 3 frame/s (97 systems: 52%). More than 90% of the institutions used some kind of additional filter for imaging.

Conclusion: This survey showed the standard setting of the angiography system during EVT in Japan.

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全国下肢动脉疾病血管内治疗血管造影系统设置调查

目的：本研究的目的是确定日本EVT期间血管造影系统的标准设置。方法：向全日本493家机构邮寄调查请求。调查项目包括透视剂量（FL剂量）/数字血管造影剂量（DA剂量）/数字减影血管造影剂量（DSA剂量）的系统显示剂量设置、检测器尺寸、透视脉冲率、DA/DSA帧率、标准附加滤光器设置。每个项目的有效回复数为：系统显示剂量设置：187个系统（128个机构），检测器大小：187个系统（128个机构），透视脉冲率和DA/DSA帧率：185个系统（127个机构），标准附加过滤器设置：182个系统（125个机构）。结果：各系统显示剂量设置的中位数（四分位数范围）为：FL: 5.9 (4.2-7.8) mGy/min, DA: 0.10 (0.06-0.16) mGy/frame, DSA: 0.82 (0.64-1.40) mGy/frame。用于剂量测量的探测器尺寸为对角线为35厘米或更小的103个系统（55%）和对角线大于35厘米的84个系统（45%）。最常用的FL帧率为7.5帧/s(132个系统：71%)，DA帧率为7.5帧/s(72个系统：39%)，DSA帧率为3帧/s（97个系统：52%）。超过90%的机构使用某种额外的滤光片进行成像。结论：本调查显示了日本EVT期间血管造影系统的标准设置。

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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