help="choose how the reconstruction and mu map are aligned - at their first, center or last slice",
)
parser.add_argument(
"-d",
"--direction",
type=int,
default=0,
help="make sure that slices are ordered in this direction according to the `SpacingBetweenSlices` parameter - 0 = no re-ordering, 1 = in positive direction, -1 = in negative direction",
)
parser.add_argument(
"--ac",action="store_true",help="use the attenuation corrected reconstruction"