Freesurfer

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30132 discussions

Parcellations (e.g., labels for Brodmann Areas) for Connectome Workbench?
by Dinicola, Lauren 06 Sep '18

06 Sep '18

Hi all, I have been searching for the Freesurfer label or annot files for fsaverage in the formats compatible with Connectome Workbench and have not yet found them. Are these available? If not, is there a way to convert all the BA labels to then convert them to borders for viewing on fsaverage? I tried mris_convert -annot but was unsuccessful opening the output files. Thank you very much for any help. Lauren

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Unknown Region_Stats
by Song, Da-Yea 06 Sep '18

06 Sep '18

External Email - Use Caution Hello, I read on the website FAQ that "if you use the values in the ?h.aparac.stats, it already factors out the 'unknown' region, so you don't have to do it yourself". Is there a way to view stats (ex. thickness, area, volume) for these unknown regions? Thank you, Dayea ---------------------------------------------------------------------- Disclaimer: The materials in this e-mail are private and may contain Protected Information. Please note that e-mail communication is not encrypted by default. You have the right to request further emails be encrypted by notifying the sender. Your continued use of e-mail constitutes your acknowledgment of these confidentiality and security limitations. If you are not the intended recipient, be advised that any unauthorized use, disclosure, copying, distribution, or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender via telephone or return e-mail.

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Did not find any volume info. Warning: MatrixInverse failed
by Sofia Rodriguez Penuela 06 Sep '18

06 Sep '18

External Email - Use Caution Hello team! We are trying to load the same set of images with Freeview on two different computers. One of the computers, load the images correctly (see attached image 1). On the other computer the surfaces are shown misaligned (see attached image 2). When we try to load surfaces after loading a volume the Command Console shows the following error:"DID NOT FIND ANY VOLUME INFO. WARNING: MATRIXINVERSE FAILED". This happens with all subjects in this computer. Freesurfer (v6.0) and Freeview are updated correctly. In both computers there are Ubuntu 16.04. Why Freeview didn´t find any volume info in this computer? Can you help us to solve this problem? Thank you. -- Sofía Rodríguez Peñuela, Técnico de Laboratorio. Laboratorio de Neurociencia Funcional Departamento de Fisiología, Anatomía y Biología Celular. Universidad Pablo de Olavide Ctra. de Utrera, Km.1 41013 - Sevilla - España - Movil: 627273085 Email: srodpen(a)upo.es http://www.upo.es/neuroaging/es/

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LGI without Matlab license?
by Thomas, Adam (NIH/NIMH) [E] 06 Sep '18

06 Sep '18

External Email - Use Caution We’d like to calculate the Local Gyrification Index (LGI) on several thousand scans, but our HPC cluster does not have the necessary Matlab licenses to do this in a reasonable amount of time. Has anyone managed to compile the LGI code such that it could be run without a Matlab license? Or is anyone working on this? Our HPC staff tried to compile it, but did not succeed. Ref: https://surfer.nmr.mgh.harvard.edu/fswiki/LGI Best Regards, -Adam Thomas

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MNI to native space using mri_cvs_register and applyMorph
by Ehsan Tadayon 06 Sep '18

06 Sep '18

External Email - Use Caution Dear Freesurfer experts, I would appreciate any help regarding my previous question: I need to transform a bunch of MNI coordinates to subject's space. I have already registered my subjects to cvs_avg35_inMNI152 using mri_cvs_register. How can I use the mri_cvs_register outputs to transform an MNI coordinate back into the subject's space? Thanks in advance. Ehsan.

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Data Analyst Position - Child Mind Institute (New York)
by Suk Jun Hong 06 Sep '18

06 Sep '18

External Email - Use Caution The Child Mind Institute is seeking a Data Analyst to support a collaborative study with Dr. Amy Roy at Fordham University. The Data Analyst’s role is to assist with the analysis of functional MRI data, as well as reporting results. In particular, the work includes: 1) preprocessing of a large fMRI dataset and implementing quality assurance protocols, 2) maintaining the database and imaging processing pipeline; 3) supporting post-doctoral researchers by implementing novel analytic methods; and 4) training graduate and undergraduate students in how to preprocess and analyze resting state and task-based functional MRI data. Reporting to Dr. Suk Jun Hong and the Director of the Center for the Developing Brain, this is a full-time position, primarily located at the CMI headquarters (101 E 56th St, New York, NY 10022). Responsibilities: Implementation, execution, and maintenance of fMRI imaging analysis pipelines Conduct neuroanatomical profile analyses as well as analyses of resting-state functional MRI data using novel software packages and neuroinformatic platforms Develop graphs, reports, and presentations of project results Training undergraduate and graduate students in data analysis theory and implementation Perform basic statistical analyses for projects and reports Qualifications: Master’s degree in neuroscience, computer science, mathematics, statistics or related areas is preferred Extensive neuroimaging experience in fMRI analysis and proficiency with one or more packages (e.g. FreeSurfer, AFNI, FSL, Workbench or SPM) Programming experience in one or more languages (e.g., Python, Matlab, R or similar platforms is required) Significant prior neuroimaging experience with more imaging and/or simulation modalities (e.g., DTI, EEG, MEG, TMS etc.) is a plus, but not required A passion for the applying computational methods to understand clinical conditions. If you are interested in the positions, please apply to https://workforcenow.adp.com/mascsr/default/mdf/recruitment/recruitment.htm… Thank you! -------------------------- Suk-Jun Hong, PhD Postdoc, Center for the Developing Brain Child Mind Institute

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How to deal with different resolutions in recon all and hippocampal subfield segmentation
by Boris Rauchmann 06 Sep '18

06 Sep '18

External Email - Use Caution Hi, I'm working on data from different sites, scanned with different MRI-Scanners ans slightly different parameters (all in the range of 1x1x1 to 1.2x1.2x1). I wonder if you would recommend to run recon all and segmentation of HC sub-fields in different analysis and how comparable the results will be. Thanks, Tragus

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A Question about Estimating the Cortical Thickness for Each Subregion
by Maedeh Khalilian 06 Sep '18

06 Sep '18

External Email - Use Caution Dear Freesurfer Experts; I have a question, are there any ways in FreeSurfer to estimate the gray matter volume or cortical thickness of each region after parcellation, in order to define the edges in the brain network? Kind regards, Maedeh,

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how to dilate a mgh binary mask file in fsaverage space. The file is in .mgh format.
by Anik Dar 05 Sep '18

05 Sep '18

External Email - Use Caution Hi I have created a .mgh file which is a bunch of vertices all with a value of 1. Please see pic. [image: Screen Shot 2018-09-05 at 7.06.04 PM.png] I want to create a bigger region of interest by dilating this yellow region lets say with a radius of 10 vertices around this region. How to do it ? Thank you. Ani

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Resting-State and Brain Connectivity 2018: Early registration fee applies until September 14, 2018
by Kelvin Mok 05 Sep '18

05 Sep '18

External Email - Use Caution ---------- Forwarded message --------- *From:* Amir Shmuel, Dr. *Subject:* Resting-State and Brain Connectivity 2018: Early registration fee applies until September 14, 2018 *Resting-State and Brain Connectivity 2018: *Early registration fee applies until September 14, 2018 Educational course: September 24-25 Conference, featuring 45 world-renowned speakers: September 26-28 Satellite workshop on how to incorporate machine and deep learning in your data analysis: September 29 *http://restingstate.com/2018/ <http://restingstate.com/2018/>* *Amir Shmuel* *Chair of the organizing committee* *Resting-State and Brain Connectivity 2018* *Montreal, QC, Canada* *[image: http://restingstate.com/2018/wp-content/uploads/2017/06/resting-state-logo-…

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