在皮肤冠状动脉干预中,使用支架增强的图像处理来减少患者的辐射暴露剂量
Kazuya Mori1,2, Toru Negishi3, Kouhei Makabe4
1Department of Radiological Technology, Saiseikai Kawaguchi General Hospital, 5-11-5 Nishikawaguchi, Kawaguchi, Saitama, 332-8558, Japan. k-mori@saiseikai.gr.jp.
Radiological physics and technology
|April 5, 2024
概括
支架增强处理可以在皮肤冠状动脉干预 (PCI) 期间将患者的辐射暴露降低高达40%. 这种方法可以提高支架的可见性,同时降低患者和操作人员的辐射剂量.
科学领域:
- 医疗成像医学成像
- 干预心脏病学 干预心脏病学
- 辐射瘤学 辐射瘤学
背景情况:
- 穿皮冠状动脉干预 (PCI) 涉及患者和操作人员辐射暴露的风险.
- 优化成像技术对于在PCI过程中最大限度地减少累积辐射剂量至关重要.
研究的目的:
- 调查支架增强处理在PCI期间减少患者辐射暴露的潜力.
- 评估降低成像剂量对图像质量和支架可视化的影响.
主要方法:
- 使用动态幻影来评估图像对比度和在不同辐射剂量 (20%,40%,60%的减少) 下对支架增强处理的质量.
- 使用平均意见得分 (MOS) 进行了粒度和支架形状的视觉评估.
- 在PCI病例中对成像采集持续时间进行了回顾性分析.
主要成果:
- 与数字血管学 (DA) (14.90 ± 1.57) 相比,用支架增强的图像 (SVref) 显示出显著更高的图像对比度 (51.25 ± 3.82).
- 降低图像质量 (粒度和支架形状的MOS) 在60%较低的剂量 (SV60) 和DA中观察到.
- 估计患者辐射暴露的潜在减少高达60.17mGy.
结论:
- 支架增强处理有效地提高了PCI中的支架可见性.
- 在支架增强期间降低成像剂量,可以在确认成像中减少约40%的辐射暴露.
- 这种技术为患者和医疗保健提供者在PCI中降低辐射剂量提供了有价值的策略.
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