I understand ultrasound works by detecting blood flow. Is the rate of the whoosh a one-for-one correlation with the heartbeat, or is it the sound of the pulses generated by the machine, at a set rate?
It depends what kind of ultrasound you had. Ultrasound checks venous and arterial flow. Venous sounds like waves in the ocean, and arterial sound like a heartbeat.
But to answer your question….No, the sound doesn’t come from the machine, and yes….the whoosh is a one-for-one with your heartbeat. (That is if indeed it was an arterial scan)
It depends what kind of ultrasound you had. Ultrasound checks venous and arterial flow. Venous sounds like waves in the ocean, and arterial sound like a heartbeat.
But to answer your question….No, the sound doesn’t come from the machine, and yes….the whoosh is a one-for-one with your heartbeat. (That is if indeed it was an arterial scan)