双动脉的儿童的流动动力学:一项血斑跟踪研究
Matthew Henry1, Solveig Fadnes2, Lasse Lovstakken2
1Hospital for Sick Children, Toronto, ON, Canada.
Ultrasound in medicine & biology
|August 12, 2023
概括
双主动脉 (BAV) 的儿童在主动脉根和左心室中表现出改变的血液流动模式. 流动动力学的这些变化可能预测未来的大动脉根扩张和扩张功能障碍.
科学领域:
- 心血管医学 心血管医学
- 儿童心脏病学 儿童心脏病学
- 生物医学工程 生物医学工程
背景情况:
- 双动脉 (BAV) 是一种先天性心脏缺陷,与渐进性大动脉扩张有关.
- 改变的血液流动动力学与BAV患者大动脉扩张的病因有关.
- 血斑跟踪 (BST) 是一种用于量化复杂血流模式的技术.
研究的目的:
- 评估和量化大动脉根和左心室血流动力学使用BST在BAV的儿童.
- 为了确定在儿科BAV患者中大动脉扩张的潜在流量预测因素.
主要方法:
- 研究了38名10岁以下儿童的队列,包括14名BAV和24名对照.
- 使用BST分析了大动脉根和左心室的血液流动动力学.
- 关键的血液动力学参数包括旋转率,矢量复杂性和能量损失率被量化.
主要成果:
- 与对照人群相比,患有BAV的儿童在大动脉根部表现出明显改变的缩流动模式.
- 在BAV患者中观察到较高的大动脉根,载体复杂性和能量损失率.
- 在患有BAV的儿童中,发现左心室较高的扩张性旋转,动能,载体复杂性和能量损失率.
结论:
- 儿科BAV患者在大动脉根和左心室血流动力学上表现出明显的改变.
- 这些异常的流动模式可能是未来大动脉根扩张和扩张功能障碍的早期指标和潜在预测因素.
- BST提供了一种有价值的工具来描述儿科BAV的流动异常,有助于风险分层和手术规划.
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