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以病史、体征、心电图检查均正常,时域法检测心室晚电位(VLP)也属阴性者作为正常人组(30例),VLP阳性者26例作为病人组,用频域法检测,对比两组的ST、QRS-T频谱段的X、Y、Z、C导联的26Hz、40Hz的分量、音量比和26-250Hz/0-26Hz、40-250Hz/0-40Hz的面积比,两组参数t测验结果显示,无论ST还是QRS-T频谱段,Z和C导联参数有显著差别,且多在26Hz滤波方式中显示,而其它参数均无显著差别,本结果可作为正常参考值,但尚难以提出频域法检测心室晚电位完整的阳性判断标准。
The history, signs and electrocardiogram were all normal. The time domain method was also used to detect the ventricular late potentials (VLP) in the normal group (30 cases). VLP was positive in 26 cases as the patient group, Group ST, QRS-T spectrum segment of the X, Y, Z, C leads 26Hz, 40Hz components, volume ratio and 26-250Hz / 0-26Hz, 40-250Hz / 0-40Hz area ratio, two groups The results of the parameter t test showed that the parameters of Z and C lead to significant differences in both ST and QRS-T spectral bands and were mostly displayed in the 26 Hz filtering mode, while other parameters showed no significant differences. The results can be used as normal reference values, But it is still difficult to put forward frequency domain detection of ventricular late potential complete positive judgment.