Assertion: carotid ultrasound | /r/CapableOf | use sound waves
Facets:
value: to produce images of the veins
type: PURPOSE
Source sentences:
text: Working on the same principle as a prenatal ultrasound, a carotid artery ultrasound uses sound waves to create a picture of these essential arterial passages.
text: Venous ultrasound uses sound waves to produce images of the veins in the body.