Dear Robert, Sorry for the slow response. Yes, it should be fine. Cheers, /Eugenio

-- Juan Eugenio Iglesias http://www.jeiglesias.com

From: freesurfer-bounces@nmr.mgh.harvard.edu freesurfer-bounces@nmr.mgh.harvard.edu on behalf of Toms, Robert Robert.Toms@utdallas.edu Date: Monday, May 5, 2025 at 1:00 PM To: freesurfer@nmr.mgh.harvard.edu freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] SegmentSubfieldsT1Longitudinal Error, Line 2136 -- Are disorganized volumes usable?

External Email - Use Caution (please see below) ________________________________ From: Toms, Robert Sent: Monday, May 5, 2025 2:55 PM To: freesurfer@nmr.mgh.harvard.edu freesurfer@nmr.mgh.harvard.edu Subject: SegmentSubfieldsT1Longitudinal Error, Line 2136 -- Are disorganized volumes usable?

Dear Experts,

I'm having the same error as this 2023 post that y'all responded to: https://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg74833.htmlhttps://secure-web.cisco.com/15Vt3zMobf7Y4tHpCjLxvyPhoC2gjNR1_ZY3GyZjqm3L4sTIpRNxmYobtpX8i9ixxWYSwuCiHkfWl7Taj_Qcjd5hwAH_rJA8UMd3bEzs87cjEQD1QiiaHA1aBbUEamu_jQ76ce_5wbkfCOeDKGX92oQb0UuBBPILreVMRcdZFFRSX2V6kvuG6F1ElzZooIk-mZUblmT3x5Hs73aSc3NYssK7rUSmWFIxrvJpQPO3M2nbqIZaaA2jtn7dl-QOr0zh437aPYtD7KmRyEi8aihdyfZUJXHrP5gPZfjjV7IFZ5DCLwYFPmh889djjddsR6ORv0CM13ZKyHRaa2QczU0MJAg/https%3A%2F%2Fwww.mail-archive.com%2Ffreesurfer%40nmr.mgh.harvard.edu%2Fmsg74833.html

I'm running FreeSurfer 8.0.0 on Ubuntu 22.04.5 LTS, and most of my subjects have run through the whole pipeline with no problems.

You told the original 2023 poster that the 2 timepoint volumes are disorganized, but still usable—which was very helpful, and covers most of my error cases, however two of my errored-out subjects have 3 timepoints. I wanted to check with you in case 3-timepoint volumes wouldn't be usable for some reason?

The following volumes are in base/tmp/hippoSF_T1_long.v22_right/ : volumesAmygdala_tp_1.txt volumesAmygdala_tp_2.txt volumesAmygdala_tp_3.txt volumesHippo_tp_1.txt volumesHippo_tp_2.txt volumesHippo_tp_3.txt

I've attached the logs for both of them, and the final lines of both logs are identical:

Applying LTAtransformInterp (resample_type 0) writing to discreteLabelsMergedBodyHeadNoMLorGCDGResampledT1_tp_2.mgz... Transforming points Transforming points Wrote image to file image_tp_3.mgz This file does not contain MRI parameters Unable to perform assignment because the left and right sides have a different number of elements.

Error in SegmentSubfieldsT1Longitudinal (line 2136)

Thank you! Robert