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随着气球可扩展TAVR的THV扩张的新型实时光学评估方法

Ali Husain^1,2, Georgios Tzimas³, Mariama Akodad⁴

¹Centre for Cardiovascular Innovation (A.H., J.J., S.O., K.M., J.A.L., P.B., D.A.W., S.L.S., J.G.W., J.S.), University of British Columbia, Vancouver, Canada.

Circulation. Cardiovascular interventions

|January 24, 2025

概括

一种使用过导管心脏 (THV) 的新光学方法准确评估过导管大动脉置换后的THV扩张. 这种技术与CT扫描相比,在优化门部署方面,与猪尾方法相比,与CT扫描有更好的相关性.

科学领域:

心脏病学心脏病学
医疗成像医学成像
干预心脏病学干预心脏病学

背景情况:

过导管心脏 (THV) 扩张不充分,过导管大动脉置换后 (TAVR) 与不良结果有关.
使用猪尾导管进行THV扩张的光镜评估是常见的,但其在TAVR中的准确性尚未得到充分证实.
开发了一种使用THV commissural post进行校准的新光学方法来评估THV膨胀.

研究的目的:

评估一种用于评估THV膨胀的新型光学方法的准确性和可重复性.
为了比较 commissural 后校准方法与传统的猪尾校准方法的准确性.
为了确定这些光学方法与植入后计算机断层扫描 (CT) 测量的相关性.

主要方法:

一项涉及40名患者的研究,这些患者使用SAPIEN 3 (S3) THV进行了TAVR.
在3个尖端和尖端重叠视图中对THV扩张的光镜评估,使用S3 commissural post height和猪尾导管进行校准.
光镜测量与植入后CT扫描进行比较,以评估准确性.

主要成果:

调理器后高度与CT测量输入,中部分和输出THV直径的强相关性 (r=0.98,0.97,0.98).
猪尾方法与CT的相关性较弱 (r=0.82,0.81,0.78).
在所有S3THV尺寸和视图中,委员会后台方法保持了强烈的相关性,而不是猪尾方法.

结论:

委员会后高度方法是一种新的,准确的实时光仪工具,用于评估THV膨胀.
这种方法有可能指导在TAVR期间优化气球可扩展THV部署.
与THV扩张评估的猪尾方法相比,委员会后的方法提供了更好的准确性和一致性.

关键词:

校准校准的时间人类人类人类人类人类人类.结果的可复制性结果的可复制性断层扫描,X射线计算成像通过导管更换大动脉门.

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