基于二极管和基于潜力的ECGI方法的早期心室收缩节拍局部化与临床数据的比较
Yesim Serinagaoglu Dogrusoz1,2, Nika Rasoolzadeh1,2, Beata Ondrusova3,4
1Department of Electrical-Electronics Engineering, Middle East Technical University, Ankara, Türkiye.
Frontiers in physiology
|June 26, 2023
概括
与基于潜力的模型相比,基于二极管的源模型提供了更稳定和更强大的早期心室收缩 (PVC) 起源的局部化,用于射频废除指导. 干不均性对每个模型的定位准确性产生不同的影响.
科学领域:
- 生物医学工程 生物医学工程
- 计算电生理学 计算电生理学
- 医疗成像医学成像
背景情况:
- 准确地定位过早心室收缩 (PVC) 的起源对于指导射频切除 (RFA) 至关重要.
- 非侵入性心电成像 (ECGI) 方法面临挑战,原因是源和前模型的变化.
- 干不均性对PVC原产地定位准确性的影响仍然是一个研究领域.
研究的目的:
- 为了比较基于双极和基于潜力的源模型的性能,以定位节奏和自发的PVC起源.
- 评估干不均质对这些定位模型准确性的影响.
- 评估ECGI用于RFA指南的反向方法的稳定性.
主要方法:
- 使用公开可用的电生理学 (EP) 溶液数据 (EDGAR) 对节奏PVC和布拉迪斯拉瓦数据对自发PVC.
- 采用均和不均的干模型来模拟与表心和内心源相关的前置问题.
- 在真实和估计的定位点/PVC来源之间评估的定位错误 (LE).
主要成果:
- 基于双极的模型显示,节奏PVC的中位数LE为25.2mm,自发PVC的中位数LE为30.2-33.0mm.
- 基于潜在的模型给出了步态PVC的中位数LE为13.9mm,自发PVC的中位数LE为28.9-39.2mm.
- 干不均性对基于二极管的解决方案的影响最小,但在心室表面改善了基于潜在的解决方案.
结论:
- 与基于潜力的模型相比,基于二极管的源模型在PVC来源定位方面表现出更高的稳定性和稳定性.
- 干不均性在不同来源模型中不同影响PVC原产地定位的性能.
- 患者特定的几何和前模型需要根据所选择的ECGI源模型表示进行仔细考虑.
相关概念视频
01:28Electrocardiogram Fundamentals
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Introduction
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
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01:29Electrocardiogram
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01:30Pulse rhythm
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