| 摘要 |
An ultrasonic echograph is used as a profilometer for the measurement of the instantaneous blood flow rate Q(t) and the instantaneous radius variation DELTA r(t) and the mean radius r0 of the artery along a first excitation line A. In accordance with the invention, the profilometer is conceived to supply also Q'(t) and DELTA r'(t) along a second excitation line B which is situated at a distance e, of the order of magnitude of millimeters, from the first line. This collection of data enables, by calculation, determination of the elasticity or compliance gamma (t) of the artery and its internal pressure P(t) at the area of measurement.
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