my input dataset is about CT
the input dataset message as the following:

++ 3dinfo: AFNI version=AFNI_2008_07_18_1710 (Aug 14 2009) [64-bit]

Dataset File: card_GBM00703369CT20070908_im001_022+orig
Identifier Code: XYZ_Ey-LVBuR6-MMW_q2Kl13BQ Creation Date: Tue Dec 1 13:32:30 2009
Dataset Type: Spoiled GRASS (-spgr)
Byte Order: LSB_FIRST [this CPU native = LSB_FIRST]
Storage Mode: BRIK file
Storage Space: 278008 (278 thousand) bytes
Geometry String: "MATRIX(3.5,0,0,-101.6991,0,3.5,0,-118.9046,0,0,3.5,-11.02547):59,62,38"
Data Axes Tilt: Plumb
Data Axes Orientation:
first (x) = Right-to-Left
second (y) = Anterior-to-Posterior
third (z) = Inferior-to-Superior [-orient RAI]
R-to-L extent: -101.699 [R] -to- 101.301 [L] -step- 3.500 mm [ 59 voxels]
A-to-P extent: -118.905 [A] -to- 94.595 [P] -step- 3.500 mm [ 62 voxels]
I-to-S extent: -11.025 -to- 118.475 [S] -step- 3.500 mm [ 38 voxels]
R-to-L center: -0.199 [R]
A-to-P center: -12.155 [A]
I-to-S center: 53.725 [S]
Number of values stored at each pixel = 1
-- At sub-brick #0 '#0' datum type is short: -3024 to 2223

----- HISTORY -----
[@Euler: Wed Sep 30 15:54:07 2009] to3d -view orig -session 20070908 -prefix GBM00703369CT20070908_im001_022 /data/GBM/00703369/CT/20070908/im1 /data/GBM/00703369/CT/20070908/im2 /data/GBM/00703369/CT/20070908/im3 ... /data/GBM/00703369/CT/20070908/im21 /data/GBM/00703369/CT/20070908/im22
[@Laplace: Tue Dec 1 13:32:30 2009] 3dWarp -oblique2card -prefix card_GBM00703369CT20070908_im001_022 -newgrid 3.5 GBM00703369CT20070908_im001_022+orig


I do not know what you mean that what does your input dataset look like
So I attach the information
I hope the information is included what you want
thanks a lot,ziad