;Anti z-COSY pulse sequence that has been modified to include an inversion-recovery element for T1 relaxation measurements. ;Includes suppression of ZQ and axial peaks. #include #include define loopcounter count "count=td1/2" 1 ze 2 50u BLKGRAD d1 pl1:f1 3 p12:sp2:f1 ph1 d10 p1 ph2 d0 p1*0.111 ph3 3u pl2:f1 50u UNBLKGRAD 300u gron0 p11:sp1:f1 ph4 100u groff 30u pl1:f1 d2 p17:gp1 d3 p1*0.111 ph5 go=2 ph31 50u BLKGRAD d1 wr #0 if #0 zd 4 50u BLKGRAD d1 pl1:f1 5 p12:sp2:f1 ph6 d10 p1 ph7 d0 p1*0.111 ph8 3u pl2:f1 50u UNBLKGRAD 300u gron0 p11:sp1:f1 ph9 100u groff 30u pl1:f1 d2 p17:gp1 d3 p1*0.111 ph10 go=4 ph14 50u BLKGRAD d1 wr #0 if #0 zd 30u id0 lo to 3 times count exit ph1=0 ph2=0 2 ph3=0 ph4=0 ph5=0 ph6=0 ph7=1 3 ph8=0 ph9=0 ph10=0 ph31=0 2 ph14=0 2 ;pl1 : high power ;pl2 : zero power (120 dB) ;p1 : 90 degree high power pulse ;p11 : duration of sweep for ZQ suppression ;p12 : duration of inversion pulse ;p17 : duration of homospoil [5 msec] ;d0 : incremented delay ;d1 : relaxation delay ;d2 : gradient recovery delay [2 msec] ;d3 : gradient recovery delay [2 msec] ;d10 : inversion recovery delay ;sp1 : power for sweep ;sp2 : power of inversion pulse ;gpz0 : gradient strength for ZQ suppression ;gpz1 : gradient strength for homospoil [50%] ;in0 : 1/(2 * SW) = DW ;nd0 : 1 ;NS : 2 * n ;DS : 8 ;td1 : twice the number of t1 increments ;count : actual number of t1 increments ;MC2 : States