The probe used in a fetal echocardiogram is called a transducer. It emits ultrasonic sound waves into your belly that create an image on the doctor’s screen. These sound waves are at a frequency that ...

Close monitoring of fetal well-being in relation to the contractions is recommended—usually via electronic fetal cardiotocography, where devices have transducers attached to the woman's abdomen.

September 7, 2009 — Fetal monitors made by Philips Healthcare, Avalon Models FM20, FM30, FM40, and FM50 and ultrasound transducer, may produce inaccurate readings, the US Food and Drug Administration ...

Cardiotocography (CTG) refers to the electronic recording of the fetal heart rate and uterine contractions. Fetal heart rate recorded through the mother’s abdomen is the most commonly used fetal ...