External Email - Use Caution

Great! I am looking forward to your solution. Thank you, Eugenio.

Best, Wayne

On Thu, May 3, 2018 at 12:51 AM, Iglesias Gonzalez, Eugenio < e.iglesias@ucl.ac.uk> wrote:

    External Email - Use Caution

Dear Wayne,

We have an idea of what the problem might be and will look into it soon.

Cheers,

/Eugenio

--

Juan Eugenio Iglesias

ERC Senior Research Fellow

Translational Imaging Group

University College London

http://www.jeiglesias.com

http://cmictig.cs.ucl.ac.uk/

*From: *freesurfer-bounces@nmr.mgh.harvard.edu on behalf of Wayne Su < waynewsu@gmail.com> *Reply-To: *Freesurfer support list freesurfer@nmr.mgh.harvard.edu *Date: *Wednesday, 2 May 2018 at 18:39 *To: *"freesurfer@nmr.mgh.harvard.edu" freesurfer@nmr.mgh.harvard.edu *Subject: *[Freesurfer] kvlGEMSMatlab error: search direction is not a descent direction

•    External Email - Use Caution        *
  
  

Hello FreeSurfer Developers,

I'm attempting to run longitudinal segmentation of hippocampal subfields by using the development version of FreeSurfer, but for some of my subjects I get the following error:

---

Global iteration 3

---

***** Estimating subject-specific atlas ***** L-BFGS Verbose: 0 MaximalDeformationStopCriterion: 1e-10 LineSearchMaximalDeformationIntervalStopCriterion: 1e-10 MaximumNumberOfIterations: 1000 BFGS-MaximumMemoryLength: 12 Subject atlas deformation, step 1 of 400 Did one deformation step of max. 0.38685 voxels in 7.733 seconds

minLogLikelihoodTimesPrior =

1.0297e+05

Subject atlas deformation, step 2 of 400 Error using kvlGEMSMatlab /autofs/space/panamint_005/users/iglesias/software/freesurfer/GEMS2/ kvlAtlasMeshDeformationOptimizer.cxx:327: itk::ERROR: AtlasMeshDeformationLBFGSOptimizer(0x2b53b9427df0): search direction is not a descent direction!

Error in kvlStepOptimizer (line 11) Error in SegmentSubfieldsT1Longitudinal (line 1169)

Does anyone have any thoughts on how to trouble-shoot this one?

1. FreeSurfer version: freesurfer-x86_64-unknown-linux-gnu-dev-20180426
2. Platform: CentOS Linux release 7.4.1708 (Core)
3. uname -a: Linux bcmhari-hpc12 3.10.0-327.el7.x86_64 #1 SMP Thu Nov 19

22:10:57 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Thanks, Wayne

---

Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer

The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.