Which Radiological Procedure Uses High-Frequency Sound to Produce an Echogram

Question

Which radiological procedure uses high-frequency sound to produce an echogram?
A) CT scan
B) magnetic resonance imaging (MRI)
C) x-ray
D) ultrasound
E) digital subtraction angiography (DSA)

Accepted Answer

Ultrasound uses high-frequency sound waves to produce images of internal organs and tissues in the body. It is a non-invasive and safe diagnostic procedure.