Hello,
I am running am trying to run my dwi data through TRACULA and for two of my subjects I was unable to run the command orientLAS.
After using 3dinfo on the data set I found that the two subjects that didn't run had a Data Axes Tilt: Oblique (45.000 deg. from plumb)
My data set
Data Axes Tilt: Oblique (43.300 deg. from plumb)
Data Axes Tilt: Oblique (38.100 deg. from plumb)
Data Axes Tilt: Oblique (42.100 deg. from plumb)
Data Axes Tilt: Oblique (32.400 deg. from plumb)
Data Axes Tilt: Oblique (41.700 deg. from plumb)
Data Axes Tilt: Oblique (42.300 deg. from plumb)
Data Axes Tilt: Oblique (45.000 deg. from plumb) (didn't work)
Data Axes Tilt: Oblique (37.900 deg. from plumb)
Data Axes Tilt: Oblique (34.300 deg. from plumb)
Data Axes Tilt: Oblique (31.700 deg. from plumb)
Data Axes Tilt: Oblique (31.800 deg. from plumb)
Data Axes Tilt: Oblique (27.500 deg. from plumb)
Data Axes Tilt: Oblique (38.900 deg. from plumb)
Data Axes Tilt: Oblique (45.000 deg. from plumb) (didn't work)
Data Axes Tilt: Plumb
Data Axes Tilt: Oblique (13.200 deg. from plumb)
When I applied 3wdarp -deoblique to the dwi images and then ran them through TRACULA and orientLAS for fsl it worked, however, now I am worried if this will cause an issue with eddy current correction. Do I need to modify the bvecs and bvals for the subjects where I use -deoblique on them before eddy current correction? Sorry, I am not super comfortable with how afni treats obliquity.
