The acquired motion NMR data is processed on line to produce {HEAD ~ a signal} indicative of {TAIL ~ the displacement} of the abdominal wall from a reference position 
indicative of
The acquired motion NMR data is processed on line to produce { HEAD ~ a signal } indicative of { TAIL ~ the displacement } of the abdominal wall from a reference position
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH