Use the high-resolution SPGR as the base image.īe sure to check the result…you may have to limit the search angle of the x and y dimensions.Īpply the inverse of this transformation to the activation map and/or spgr images to get them into the DTI space. Use FLIRT with a 6 parameter rigid body transform to register the first volume of the DTI image with the spgr image. vmp files).įrom FSL/SPM space: To go from FSL/SPM space to MedINRIA space, use fslswapdimwith the options x -y z on both the SPGR and the activation map (or the exported to analyze. bvec file that has the direction info.įrom BV space: To go from BV space to MedINRIA space, use fslswapdimwith the options z x -y on both the SPGR and the activation map (or the exported to analyze. This converts the dicom to analyze (which we do not need), and produces a. To extract the gradient directions from raw dicom images, use a utility called dcm2nii which is installed along with the MRIcron package. bvec file with the gradient directions from the scan. Select all of the analyze images created by the Dicom Import Wizard. Now you can go to Modules–> DTI Track, and Click the upper left button to “Create a new. The program creates one Analyze image for each DTI gradient direction.Īnalyzing DTI data in MedINRIA- Creating a new project Finally, click “finish” and wait for the volumes to save and load. Once they load, highlight the series and click the “split” and then the “save all” button. ![]() Click this button and point the browser to the folder that contains the DTI images. On the top left corner of the ‘DICOM Importer Wizard’ is the ‘Open folder’ button. Open MedINRIA and go to Modules–> Image ViewerĬlick the ‘Import’ button and then the ‘Next’ button. Make sure there is nothing else in the folder except the DTI images. Put all of the dicom images from the DTI run into one folder. It is also allows you to use high-resolution images as your base image.Īnalyzing DTI data in MedINRIA- Importing from Dicom This is useful when using an fMRI cluster as a DTI seed. ![]() It also is useful for overlaying multiple image types (i.e.
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