Mori Kazuya, Negishi Toru, Makabe Kouhei, Matsukura Kazuhisa
Department of Radiological Technology, Saiseikai Kawaguchi General Hospital, 5-11-5 Nishikawaguchi, Kawaguchi, Saitama, 332-8558, Japan.
Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 7-2-10 Higashi-ogu, Arakawa, Tokyo, 116-8551, Japan.
Radiol Phys Technol. 2025 Jun;18(2):615-621. doi: 10.1007/s12194-025-00915-0. Epub 2025 May 10.
Several percutaneous coronary intervention (PCI) support technologies have been developed to improve procedural outcomes. We retrospectively investigated whether a real-time stent enhancement processing system (Stent View; SV) can effectively reduce radiation dose during PCI. The control group comprised individuals subjected to PCI using SV under standard imaging conditions, whereas the evaluation group included those subjected to PCI using SV under reduced dose (68% of the standard dose). We evaluated the balloon marker detection accuracy of SV ( ) and calculated the cumulative air kerma (K) when SV was used. The mean in the control and evaluation groups were 94.03 ± 14.52% and 94.62 ± 13.98%, respectively (p = 0.26), whereas the K were 111.15 ± 79.62 mGy and 65.22 ± 47.35 mGy, respectively. On average, appropriate optimization of the SV imaging conditions reduced patient radiation dose during SV imaging by 41.32% without affecting the accuracy of SV image reconstruction.
为改善手术效果，已研发出多种经皮冠状动脉介入治疗（PCI）支持技术。我们进行了一项回顾性研究，以调查实时支架增强处理系统（Stent View；SV）能否有效降低PCI期间的辐射剂量。对照组包括在标准成像条件下使用SV进行PCI的患者，而评估组包括在降低剂量（标准剂量的68%）下使用SV进行PCI的患者。我们评估了SV的球囊标记检测准确性（ ），并计算了使用SV时的累积空气比释动能（K）。对照组和评估组的平均 分别为94.03±14.52%和94.62±13.98%（p = 0.26），而K分别为111.15±79.62 mGy和65.22±47.35 mGy。平均而言，对SV成像条件进行适当优化可使SV成像期间患者的辐射剂量降低41.32%，且不影响SV图像重建的准确性。
