I'll look at this in more detail (it's tied to something else I'm
working on), but at first glance it looks okay. AFNI is using
the DICOM "Image Position Patient" field that you show
below to determine position of each slice. Those other
numbers ("Coord of Top Right Corner") are
proprietary data and aren't used by AFNI. There does
seem to be an error of 1/2 pixel in the R-L direction, I'll
try to figure out if there's enough information to decipher
those GE fields.

rich

george he wrote:
[snip]
> -------------------- here is the output of 3dinfo
> --------------------------
> Data Axes Orientation:
> first (x) = Right-to-Left
> second (y) = Superior-to-Inferior
> third (z) = Posterior-to-Anterior [-orient RSP]
> R-to-L extent: -105.707 [R] -to- 113.434 [L] -step-
> 0.859 mm [256 voxels]
> A-to-P extent: -90.100 [A] -to- 94.400 [P] -step-
> 1.500 mm [124 voxels]
> I-to-S extent: -108.071 -to- 111.070 [S] -step-
> 0.859 mm [256 voxels]
> Number of values stored at each pixel = 1
> -- At sub-brick #0 '#0' datum type is short: 0
> to 407
>
> ----------- here are a few lines copied from dcdump output
[snip]
> (0x0020,0x0032) DS Image Position (Patient) VR=<DS>
> VL=<0x0020> <-105.707\94.3996\111.07>
> (0x0027,0x1048) FL R Coord Of Top Right Corner VR=<FL>
> VL=<0x0004> {-114.293}
> (0x0027,0x1049) FL A Coord Of Top Right Corner VR=<FL>
> VL=<0x0004> {-94.3996}
> (0x0027,0x104a) FL S Coord Of Top Right Corner VR=<FL>
> VL=<0x0004> {111.07}
> (0x0027,0x104b) FL R Coord Of Bottom Right Corner
> VR=<FL> VL=<0x0004> {-114.293}
> (0x0027,0x104c) FL A Coord Of Bottom Right Corner
> VR=<FL> VL=<0x0004> {-94.3996}
> (0x0027,0x104d) FL S Coord Of Bottom Right Corner
> VR=<FL> VL=<0x0004> {-108.93}