[Echotomography in the surveillance of pregnancy].

The absence of use of ionising radiation contrary to the XRay scanner with computer, makes echotomography B, using ultrasound, a practically ideal method of supervision of pregnancy whether normal or pathological. The objections to its use, e.g. mechanical lesions detected on unicellular organisms in vitro, are not obvious in clinical medicine where the technique has now been in use for a sufficiently long time. However, one should not use this as a test of pregnancy but simply a method of supervision. During pregnancy either clinically or potentially pathological the use of this examination has been demonstrated whether one considers the pathology of the first trimester or that of the end of pregnancy.