心电图QT分析(ECG QT analysis): calculating an eligible QT or QTc value, as well as QT variability (QTv) as a function of RR or HR, in case of at least 32 chosen cycles. Criteria of reliability of the measurements are also evaluated.
心脏频率变化(HRV)分析(Heart frequency variation (HRV) analysis): 心脏频率的变化是随时间和频率分析而变化的, 也提供有正常化得RR。