多生理状态计算流体动力学建模用于规划Fontan与中断的下静脉卡瓦瓦
David M Hoganson1, Vijay Govindarajan1, Noah E Schulz1
1Department of Cardiac Surgery, Boston Children's Hospital, Boston, Massachusetts, USA.
JACC. Advances
|August 12, 2024
概括
计算流体动力学 (CFD) 建模有助于平衡单心室 (SV) 患者的肝静脉流 (HVF) 患者中断下腔静脉 (iIVC) 接受Fontan手术,防止肺动脉静脉形 (AVMs). 这种方法可以确保HVF更好地分布到两个肺部.
科学领域:
- 生产性心脏手术 手术 生产心脏手术
- 儿童心脏病学 儿童心脏病学
- 医学成像和模拟技术
背景情况:
- 单心室 (SV) 生理学与中断的下腔静脉 (iIVC) 构成风险不平衡的肝静脉流 (HVF) 分布后Fontan手术.
- 这种不平衡可能导致肺动脉静脉形 (AVM) 的发展,这是一个严重的并发症.
研究的目的:
- 采用计算流体动力学 (CFD) 分析,以优化iIVC的SV患者肺部HVF分布.
- 为了防止HVF的错误分布,并减少在Fontan完成或修订后AVM的发生率.
主要方法:
- 在四名患有iIVC的SV患者中使用了整合细分成像 (MRI/CT) 的3D建模工作流程.
- 在各种生理状态中进行虚拟手术规划和CFD模拟.
- CFD分析指导了对操作策略的评估,以实现平衡的HVF到两个肺.
主要成果:
- 在手术前的CFD分析预测了标准Fontan完成时显著的HVF分布错误 (100%到一个肺).
- 根据CFD的信息,其他手术策略实现了平衡的HVF分布 (平均37%/63% ±10.4%到右/左肺).
- 对手术后的MRI测量进行了验证,证实了模拟的准确性.
结论:
- 一个3D建模和CFD模拟工作流是有效的管理HVF在SV患者与iIVC的HVF分配不良.
- 这种方法可能会在Fontan手术后预防AVMs的发展,改善患者的治疗结果.
相关概念视频
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