I've attached a file that describes the rules we use to determine the coordinates. The c_ras is the center of the volume. This is computed from the geometry in the dicom; there is no dicom field for it

doug

On 07/07/2014 05:49 PM, Fan, Qiuyun wrote:

Dear Freesurfer experts,

I used EicomEditor to anonymize the dicom header. When I run mri_convert on the anonymized dicom file, it sets k_ras as NaN.

I checked the dcmdump results of both, and I couldn't figure out which fields were erased to cause that problem.

I'm attaching the dcmdump info, and mri_convert outputs for more information. Any comments on how to debug this? For example, which field(s) in dicom header does the program read/calculate k_ras from?

Thanks a lot!

Best,

Qiuyun

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