
5-84
Operation Manual
Measurement Menu Item Mode Method Unit
Tei Index
All PW
Calculated after continuous
measurement
TST PW Time ms
ET PW Time ms
Fetal HR Fetal Heart Rate M, PW Heart Rate bpm
CTAR (Cardio-Thorax Area Ratio)
This measurement is for comparing the sizes of the fetus’ chest and heart. The comparison is made by
obtaining the ThD ap, ThD trans, HrtD ap, and HrtD trans values.
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