The -hires performs all operations in 0.7mm space whereas leaving it off causes recon-all to "conform" the volume so that it is 256^3 and 1mm^3. If you want more help with this, send the log file

On 6/10/2022 6:58 PM, Schneider, Christoph wrote:

Hi,

I have 7T MP2RAGE data of 25 individuals with an isotropic 0.7mm voxel resolution. I initially ran FS with the -hires flag to preserve the additional detail, but in 4 cases this crashed the process, while running the same image without the -hires flag works fine (surfaces visually inspected). I just wanted to know what could be the cause for this difference in behavior between the two options.

Many thanks in advance,
Chris

Christoph Schneider, PhD
Postdoctoral Research Fellow

Harvard Medical School

Massachusetts General Hospital

Gordon Center for Medical Imaging
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