| 摘要 |
The present invention relates to the field of fetal heart rate (FHR) monitoring. In particular, it relates to monitoring during periods of so-called non-stationary fetal heart rate patterns, such as those that occur during labour. <??>The invention provides an improved apparatus, method and computer program for more clear analysis of FHR variations, such that fetal distress can be correctly assessed earlier. <??>According to one aspect, the invention comprises means for determining a fetal heart rate, means for identifying a primary fetal heart rate component, means for subtracting the primary component from the determined fetal heart rate to determine a residual component, and means for using said residual component to estimate the fetal heart rate beat-to-beat variation. <IMAGE>
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