{HEAD ~ A magnetic resonance imaging apparatus} 1, wherein the test gradient magnetic field is applied in {TAIL ~ its actual value} 
{ HEAD ~ A magnetic resonance imaging apparatus } 1 , wherein the test gradient magnetic field is applied in { TAIL ~ its actual value }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL