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