| 摘要 |
A fetal Brain Monitor (FBM) (14) utilizes a transducer (10) which is placed on the abdomen (11) of a mother and which is pulsed to generate auditory sounds, i.e., clicks, to provide auditory brainstem evoked responses (BAER) of a fetus within the mother's uterus. The fetus' brain waves are detected by a biosensor (15), amplified (17), converted to digital data (10), and analysed, in one embodiment, using a digital comb filter to improve the signal/noise ratio. The computer system uses QEEG (Quantitative EEG) to compare the data from the fetus to normative data or to prior states of the fetus' own data (self-norm).
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