CAJ | 학술논문

T波交替是一种心电变异现象，具体表现为心电信号中T波段形态和幅度逐拍交替变化。传统的谱分析法一般通过拍频域中0.5 cycle/beat的功率谱值来检测T波交替，但在检测过程中不同的对齐方式将影响谱分析T波交替检测结果，因此将基于谱分析方法进行T波交替检测，重点对比研究峰值对齐及点乘最大对齐两种方式，并相应地给出最佳对齐方式，研究可得点乘对齐所测的交替幅度更接近于真实幅度。
T파교체시일충심전변이현상，구체표현위심전신호중T파단형태화폭도축박교체변화。전통적보분석법일반통과박빈역중0.5 cycle/beat적공솔보치래검측T파교체，단재검측과정중불동적대제방식장영향보분석T파교체검측결과，인차장기우보분석방법진행T파교체검측，중점대비연구봉치대제급점승최대대제량충방식，병상응지급출최가대제방식，연구가득점승대제소측적교체폭도경접근우진실폭도。
T-wave alternans ( TWA) is a variation phenomenon characterized by beat to beat alternation in the morphology and/or amplitude of the T-wave of electrocardiographic .Traditional frequency spectral method (SM) uses the power spectrum at the 0.5 cycle/beat frequency to detect TWA , however, the re-sults are affected by the alignment strategy during detection .Therefore, the work researches on the peak alignment and dot-product alignment affecting TWA detection based on the spectral method and provides the optimum alignment strategy .The research proves that the amplitude based on dot-product alignment estimates TWA more accurately .