--subdivision Ultrasonic imaging under individual diseases and types of diseases and individual organs and regions of the body other than brain and heart, e.g. Cancer--Ultrasonic imaging; Foot--Ultrasonic imaging
The visualization of deep structures of the body by recording the reflections or echoes of ultrasonic pulses directed into the tissues. Use of ultrasound for imaging or diagnostic purposes employs frequencies ranging from 1.6 to 10 megahertz
