Table 2.
Parameter | MI-VT patients (mean ±SD) | Statistical differences MI-VT vs. MI-nonVT (p value) | MI–nonVT patients (mean ±SD) | Statistical differences MI-nonVT vs. control (p value) | Control group (mean ±SD) |
---|---|---|---|---|---|
STT_QRST_CORR | 0.35±0.54 | 0.05 | 0.63±0.47 | 0.004 | 0.91±0.09 |
STT_DI | 1.81±0.61 | 0.01 | 1.32±0.41 | 0.0001 | 0.80±0.27 |
TSI_DI | 2.53±1.15 | 0.03 | 1.71±1.07 | 0.003 | 0.77±0.27 |
QRS INT [ms] | 137±30 | 0.03 | 120±13 | 0.005 | 107±13 |
QT INT [ms] | 482±54 | 0.02 | 441±36 | 0.005 | 405±31 |
QT INT DISP [ms] | 78±32 | ns (0.68) | 77±25 | ns (0.16) | 65±25 |
Tpeak–Tend INT [ms] | 123±29 | ns (0.09) | 109±17 | ns (0.54) | 105±16 |
TCRT | −0.37±0.50 | ns (0.06) | 0.03±0.65 | ns (0.48) | 0.23±0.44 |
NDC [%] | 9.7±9.8 | ns (0.33) | 13±15 | 0.02 | 6±4 |
NDC – non dipolar content of QRST integral maps, STT_DI – departure index of absolute value of STT integral map, STT_QRST_CORR – correlation coefficient between STT and QRST integral maps, TCRT – total cosine between QRS complex and T wave, Tpeak-Tend INT – T wave peak to T wave end interval, TSI_DI – departure index of absolute value of T-wave shape index, QRS INT – QRS interval, QT INT – QT interval, QT INT DISP – dispersion of QT interval, SD – standard deviation, and ns – not significant.