{TAIL ~ An ultrasound probe} includes {HEAD ~ a transducer array} which is moved back and forth to sweep the image plane of the array through a volumetric region for 3D scanning 
{ TAIL ~ An ultrasound probe } includes { HEAD ~ a transducer array } which is moved back and forth to sweep the image plane of the array through a volumetric region for 3D scanning
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH