Hi all,
I have used the 3dTshift commnad to correct the time difference of the slices, and the output made me comfusing...

The command was
3dTshift -verbose -prefix test -TR 2s -tpattern altplus DDr1+orig

the original acquired time was:
++ using tpattern = 0 1.0303 0.0606061 1.09091 0.121212 1.15152 0.181818 1.21212 0.242424 1.27273 0.30303 1.33333 0.363636 1.39394 0.424242 1.45455 0.484848 1.5 1515 0.545455 1.57576 0.606061 1.63636 0.666667 1.69697 0.727273 1.75758 0.787879 1.81818 0.848485 1.87879 0.909091 1.93939 0.969697 s

and the acquired time of the 33rd slice was used as the template.

++ common time point set to 0.969697

The output are:

++ Time series length = 222; FFT length set to 240
++ slice 0: fractional shift = -0.484848
++ slice 1: fractional shift = 0.030303
++ slice 2: fractional shift = -0.454545
++ slice 3: fractional shift = 0.0606061
++ slice 4: fractional shift = -0.424242
++ slice 5: fractional shift = 0.0909091
++ slice 6: fractional shift = -0.393939
++ slice 7: fractional shift = 0.121212
++ slice 8: fractional shift = -0.363636
++ slice 9: fractional shift = 0.151515
++ slice 10: fractional shift = -0.333333
++ slice 11: fractional shift = 0.181818
++ slice 12: fractional shift = -0.30303
++ slice 13: fractional shift = 0.212121
++ slice 14: fractional shift = -0.272727
++ slice 15: fractional shift = 0.242424
++ slice 16: fractional shift = -0.242424
++ slice 17: fractional shift = 0.272727
++ slice 18: fractional shift = -0.212121
++ slice 19: fractional shift = 0.30303
++ slice 20: fractional shift = -0.181818
++ slice 21: fractional shift = 0.333333
++ slice 22: fractional shift = -0.151515
++ slice 23: fractional shift = 0.363636
++ slice 24: fractional shift = -0.121212
++ slice 25: fractional shift = 0.393939
++ slice 26: fractional shift = -0.0909091
++ slice 27: fractional shift = 0.424242
++ slice 28: fractional shift = -0.0606061
++ slice 29: fractional shift = 0.454545
++ slice 30: fractional shift = -0.030303
++ slice 31: fractional shift = 0.484848
++ slice 32: fractional shift = -0
++ Wrote output: ./test+orig.BRIK

I thought that the sampled time of each slice was corrected to the 33rd slice(0.969697s), but from the output, e.g., the first slice was correct to 0.484848s, and other slices was not corrected to 0.969697s either.

Could any one give me some explainations about this problem? Thanks~