以回顾式门式计算机断层扫描进行的三维左心房应变:与大动脉狭窄患者的斑点追踪回声心脏扫描进行比较
Charles Sillett1, Vitaliy Androshchuk2, Edouard Long2
1School of Biomedical Engineering and Imaging Sciences, Faculty of Life Sciences & Medicine, King's College London, St Thomas' Hospital, Westminster Bridge Rd, London SE1 7EH, United Kingdom; National Heart and Lung Institute, Imperial College London, London, United Kingdom.
Journal of cardiovascular computed tomography
|August 22, 2025
概括
在二维心声学中看到的三维 (3D) CT衍生左心房应变 (PALS) 绕道缩短. 这种新的3DCT方法与2D心声学具有相似的临床相关性,有可能改善心房功能评估.
科学领域:
- 心脏病学
- 医学成像
- 生物医学工程
背景情况:
- 使用四维 (4D) 计算机断层扫描 (CT) 评估三维 (3D) 左心房变形,可以克服二维 (2D) 心声扫描的局限性,例如心房缩短.
- 新的特征追踪方法允许从4DCT量化3DLA变形.
- 3DCT衍生和2D回声心脏学峰值左心房纵向应变 (PALS) 之间的一致性仍未确定.
研究的目的:
- 将3DCT衍生PALS与2D心声学衍生PALS进行比较.
- 评估3DCT衍生PALS在运动能力,生活质量和心脏生物标志物的临床实用性.
主要方法:
- 预计接受TAVI的80名患者接受了手术前CT和胸腔回声扫描 (TTE).
- 4DCT数据以5%的R-R间隔进行重建.
- 使用新型特征追踪从CT (PALSCT) 获得2D和3DPALS,并与TTE (PALSTTE) 获得2DPALS进行比较.
主要成果:
- 2D PALSTTE和2D PALSCT显示出强烈的相关性 (r=0. 84) 和良好的一致性 (平均偏差=- 0. 8).
- 与3D PALSCT相比,2D PALSTTE系统地高估了压力 (平均偏差=-3.6),可能是由于心房缩短.
- 3D PALSCT和2D PALSTTE都与运动能力,生活质量和大脑 natriuretic 和腹填充压力的预测有相似的相关性.
结论:
- 2D PALSCT和2D PALSTTE显示出良好的协议,验证了CT方法.
- 3D PALSCT可以通过减轻2D心声学心房缩短来更准确地评估LA储功能.
- 3D PALSCT提供了一个有前途的辅助工具,用于评估心脏膜疾病患者的心脏功能.
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