right, we don't support qdec anymore. Try using mri_glm fit (eg, https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/MultipleComparisonsV6.0Perm)

On 11/24/2025 6:13 AM, Henry Do wrote:

        External Email - Use Caution        

Hi freesurfer experts,

 

I am working on a project, and I have used mri_glmfit to compare the cortical thickness of the patient cohort with that of the control. When I examined the results, I noticed some unexpected clusters of atrophy and wanted to investigate which subjects contributed to each cluster. In the previous version, I could do this easily with QDEC, but unfortunately, my current computer can’t set up QDEC because the Windows version is not compatible with FreeSurfer 6.0. I hope you can help me with an alternative method for performing this analysis, as it would be greatly beneficial for my project.

 

Sincerely,

Henry

 

 

Hiệp ĐỖ (Henry DO)

Tran Minh Hiep DO (Henry DO)

PhD Candidate | B.Biomed.Eng

Faculty of Science, School of Psychology

 

THE UNIVERSITY OF SYDNEY
FRONTIER Frontotemporal Dementia Research Group | Brain and Mind Centre | M02G | Level 1, 94 Mallet Street | Camperdown | NSW | 2050

 

Contact: +61 451 973 339

Email: trdo0838@sydney.edu.au

 

 


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