冠状动脉旋转动脉切除术中的前性血管内超声波成像:发展和性能评估
IEEE transactions on bio-medical engineering
|September 2, 2025
概括
集成到旋转切除器件中的前性血管内超声波 (FL-IVUS) 提供实时成像反. 这提高了治疗化阻塞的手术精度,并降低了并发症的风险.
科学领域:
- 心血管干预
- 医学成像技术
- 生物医学工程
背景情况:
- 冠状动脉旋转切除术 (CRA) 对于治疗化动脉阻塞至关重要.
- 在CRA过程中缺少实时血管内成像可能导致不理想的参数设置和手术并发症.
- 面向前方的血管内超声波 (FL-IVUS) 在成像严重化或封闭血管方面具有独特的优势.
研究的目的:
- 开发和评估一个视觉旋转手术仪器,其中包含FL-IVUS用于CRA期间的手术内反.
- 研究传感器角度参数对FL-IVUS导管图像质量的影响.
- 评估综合FL-IVUS系统在各种幻体和活体组织中的成像性能.
主要方法:
- 设计和制造的FL-IVUS成像导管,前视角为30°,45°和60°.
- 使用线形影像,活体猪大动脉,血管影像模型和化组织替代品评估成像性能.
- 评估传感器倾斜角度对空间分辨率和透深度的影响.
主要成果:
- FL-IVUS成像显示出令人满意的性能可视化猪大动脉组织.
- 具有不同倾斜角度的传感器表现出相似的性能和分辨率.
- 增加光束对轴方向的角度提高了空间分辨率,但降低了透深度.
结论:
- 集成的FL-IVUS旋转切割装置提供有效的内腔信息反.
- 这项技术有助于优化参数设置和在CRA过程中评估旋转研磨.
- 微型,集成的FL-IVUS旋转器件可提供实时超声波反,可能降低手术风险.
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