Different methods of 3D QRS area calculation from vectorcardiographic X, Y, and Z Leads.

IF 1.7 4区医学 Q3 CARDIAC & CARDIOVASCULAR SYSTEMS

Pace-Pacing and Clinical Electrophysiology Pub Date : 2024-07-01 Epub Date: 2024-03-26 DOI:10.1111/pace.14968

Amit Noheria, Christian Toquica, Uzair A Mahmood, Ashley DeBauge, Tucker Morey, Christopher J Harvey

引用次数: 0

Abstract

3DQRSarea is a strong marker for cardiac resynchronization therapy and can be obtained by taking the (i) summation or the (ii) difference of the areas subtended by positive and negative deflections in X, Y, Z vectorcardiographic electrocardiogram (ECG) leads. We correlated both methods with the instantaneous-absolute-3D-voltage-time-integral (VTI_QRS-3D). 3DQRSarea consistently underestimated the VTI_QRS _-3D, but the summation method was a closer and more reliable approximation. The dissimilarity was less apparent in left bundle branch block (r² summation .996 vs. difference .972) and biventricular paced ECGs (r² .996 vs. .957) but was more apparent in normal ECGs (r² .988 vs. .653).

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根据矢量心电图 X、Y 和 Z 导联计算 3D QRS 面积的不同方法。

三维 QRS 面积是心脏再同步化治疗的一个有力标志，可通过求取 X、Y、Z 矢量心电图（ECG）导联中正负偏转所占面积的(i) 和或(ii) 差来获得。我们将这两种方法与瞬时-绝对-3D-电压-时间积分（VTIQRS-3D）相关联。3DQRSarea 始终低估了 VTIQRS -3D，但求和法更接近、更可靠。在左束支传导阻滞（r2 相加为 0.996，差值为 0.972）和双心室起搏心电图（r2 0.996，差值为 0.957）中，这种相似性不那么明显，但在正常心电图（r2 0.988，差值为 0.653）中则更为明显。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Pace-Pacing and Clinical Electrophysiology 医学-工程：生物医学

CiteScore

2.70

自引率

5.60%

发文量

209

审稿时长

2-4 weeks

期刊介绍： Pacing and Clinical Electrophysiology (PACE) is the foremost peer-reviewed journal in the field of pacing and implantable cardioversion defibrillation, publishing over 50% of all English language articles in its field, featuring original, review, and didactic papers, and case reports related to daily practice. Articles also include editorials, book reviews, Musings on humane topics relevant to medical practice, electrophysiology (EP) rounds, device rounds, and information concerning the quality of devices used in the practice of the specialty.