An echocardiogram is a study of the heart using ultrasound.

However, using ultrasound does not guarantee that an adequate signal can be obtained.

Also, Feng has found that some species of frogs use ultrasound.

The doctor may use ultrasound to guide the instrument.

If the measured number is higher or lower than 2 centimetres, further tests using ultrasound would be needed to check the results.

But numerous experts are skeptical about using ultrasound alone, without sucking out the fat.

By humming at a low pitch, she can use ultrasound to see through solid objects.

It is reliably seen early in human pregnancy using ultrasound.

It uses ultrasound to show what kind of bones are down there.

In graduate school, she researched and developed new medical techniques using ultrasound.