右心室3D几何形状的形状变化与低质左心综合征患者的不良结果有关:使用CMR检查 (FORCE) 研究的Fontan结果注册表
Yue-Hin Loke1,2, Ryan O'Hara1, Jacqueline Contento2
1Heart and Lung Center (Y.-H.L., R.H., S.K., R.V., S.G., R.M., A.F., Y.d., U.T.), Children's National Hospital, Washington, DC.
Circulation. Cardiovascular imaging
|November 5, 2025
概括
统计形状建模揭示了低可塑性左心综合征 (HLHS) 患者中明显的右心室 (RV) 形状. 特定的RV变体预测不利的结果,改善风险分层超出传统指标.
科学领域:
- 心脏病学 心脏病学
- 医疗成像医学成像
- 生物医学工程 生物医学工程
背景情况:
- 对全身右心室 (RV) 的准确评估对于低可塑性左心综合征 (HLHS) 管理至关重要.
- 传统的成像指标不充分描述RV几何和HLHS重塑,阻碍了有效的风险分层.
- 需要新的方法来更好地了解RV变化及其在HLHS中的临床影响.
研究的目的:
- 将统计形状建模应用于HLHS患者心磁共振 (CMR) 数据的大型多中心队列.
- 定义RV形状变体并研究它们与RV功能和临床结果的关联.
- 探索RV形状在单心室生理学患者的预后价值.
主要方法:
- 来自Fontan Outcomes Registry使用CMR检查 (FORCE) 对Fontan后HLHS患者的CMR数据的分析.
- 3D RV模型在终端透气时的细分和统计形状建模 (ShapeWorks) 的应用.
- 通过主要成分分析和与功能和临床结果 (死亡率,移植,心力衰竭) 的相关联来提取形状模式.
主要成果:
- 在329名HLHS患者中,RV的平均形状显示出周围扩张和隔膜腔损失.
- RV终端透析体积与不良综合结果相关 (OR,6.50;P=0.001).
- 一个角凸起的表型与不良综合结果 (OR,2.45;P=0.047) 和死亡率/移植 (OR,4.24;P=0.004) 相相关,并与VR扩张,增大和减弱应变有关. 一个球形形状的形状表明三角吐和环状扩张.
结论:
- 统计形状建模为HLHS的RV几何改造提供了新的见解.
- 已识别的RV形状表型与功能障碍有关,并预测不良临床结果.
- 基于形状的指标提供额外的预后价值超出体积分析风险分层和单心室生理学的手术决策.
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