We are finding a conversion problem with our latest multiband/SMS data (Using a sequence from Minnesota). The values can be very large, greater than 53,000. These large voxels get turned into very large negative numbers when converting to nii. This happens even if we use the flag –odt float and/or –ns 1. When we use the –odt flag, it does set the output data type to float32, but the values are still wrong.
We're using FreeSurfrer 5.3.0 on CentOS 6.5 x86_64.
Thanks, Stephanie +++++++++++++++++++++++++
Stephanie McMains Neuroimaging Staff Scientist Center for Brain Science Harvard University 52 Oxford Street Cambridge, MA 02138
+++++++++++++++++++++++++ For answers to frequently asked questions: http://cbs.fas.harvard.edu/science/core-facilities/neuroimaging/information-...
Hi Stephanie, can you send me one of your dicoms? doug
On 11/5/15 11:27 AM, McMains, Stephanie wrote:
We are finding a conversion problem with our latest multiband/SMS data (Using a sequence from Minnesota). The values can be very large, greater than 53,000. These large voxels get turned into very large negative numbers when converting to nii. This happens even if we use the flag –odt float and/or –ns 1. When we use the –odt flag, it does set the output data type to float32, but the values are still wrong.
We're using FreeSurfrer 5.3.0 on CentOS 6.5 x86_64.
Thanks, Stephanie +++++++++++++++++++++++++
Stephanie McMains Neuroimaging Staff Scientist Center for Brain Science Harvard University 52 Oxford Street Cambridge, MA 02138
+++++++++++++++++++++++++ For answers to frequently asked questions: http://cbs.fas.harvard.edu/science/core-facilities/neuroimaging/information-...
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
I've put a new linux version here that works on the dicom you sent me
ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/mri_convert
On 11/05/2015 11:27 AM, McMains, Stephanie wrote:
We are finding a conversion problem with our latest multiband/SMS data (Using a sequence from Minnesota). The values can be very large, greater than 53,000. These large voxels get turned into very large negative numbers when converting to nii. This happens even if we use the flag –odt float and/or –ns 1. When we use the –odt flag, it does set the output data type to float32, but the values are still wrong.
We're using FreeSurfrer 5.3.0 on CentOS 6.5 x86_64.
Thanks, Stephanie +++++++++++++++++++++++++
Stephanie McMains Neuroimaging Staff Scientist Center for Brain Science Harvard University 52 Oxford Street Cambridge, MA 02138
+++++++++++++++++++++++++ For answers to frequently asked questions: http://cbs.fas.harvard.edu/science/core-facilities/neuroimaging/information-...
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
freesurfer@nmr.mgh.harvard.edu
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Douglas Greve -
Douglas N Greve
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McMains, Stephanie