The ultrasonic waves are conducted into a patients body through {HEAD ~ the acoustic transmitter} such as {TAIL ~ water} 
The ultrasonic waves are conducted into a patients body through { HEAD ~ the acoustic transmitter } such as { TAIL ~ water }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL