Kabir Muammar M, Perez-Alday Erick A, Thomas Jason, Sedaghat Golriz, Tereshchenko Larisa G
Knight Cardiovascular Institute, Oregon Health and Science University, Portland, USA.
Knight Cardiovascular Institute, Oregon Health and Science University, Portland, USA.
J Electrocardiol. 2017 May-Jun;50(3):342-348. doi: 10.1016/j.jelectrocard.2016.12.005. Epub 2016 Dec 29.
The purpose of this study was to develop optimal configuration of adhesive ECG patches placement on the torso, which would provide the best agreement with the Frank orthogonal ECGs. Ten seconds of orthogonal ECG followed by 3-5min of ECGs using patches at 5 different locations simultaneously on the torso were recorded in 50 participants at rest in sitting position. Median beat was generated for each ECG and 3 patch ECGs that best correlate with orthogonal ECGs were selected for each participant. For agreement analysis, spatial QRS-T angle, spatial QRS and T vector characteristics, spatial ventricular gradient, roundness, thickness and planarity of vectorcardiographic (VCG) loops were measured. Key VCG parameters showed high agreement in Bland-Altman analysis (spatial QRS-T angle on 3-patch ECG vs. Frank ECG bias 0.3 (95% limits of agreement [-6.23;5.71 degrees]), Lin's concordance coefficient=0.996). In conclusion, newly developed orthogonal 3-patch ECG can be used for long-term VCG monitoring.
本研究的目的是开发躯干上粘贴式心电图贴片的最佳配置，以使其与Frank正交心电图具有最佳一致性。在50名坐姿休息的参与者中，记录了10秒的正交心电图，随后同时在躯干的5个不同位置使用贴片记录3 - 5分钟的心电图。为每个心电图生成中位数搏动，并为每个参与者选择与正交心电图相关性最佳的3个贴片心电图。为进行一致性分析，测量了空间QRS - T角、空间QRS和T向量特征、空间心室梯度、心电向量图（VCG）环的圆度、厚度和平面度。关键的VCG参数在Bland - Altman分析中显示出高度一致性（3贴片心电图上的空间QRS - T角与Frank心电图的偏差为0.3（一致性界限95%[-6.23;5.71度]），Lin一致性系数 = 0.996）。总之，新开发的正交3贴片心电图可用于长期VCG监测。
