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| − | == Overview ==
| + | <big>'''Note:''' We are migrating this content to the slicer.org domain - <font color="orange">The newer page is [https://www.slicer.org/wiki/Modules:Volumes:Diffusion_Editor-Documentation here]</font></big> |
| − | The goal of this project is to add a Gradient Editor for DWI data in the Volumes modul of Slicer3.
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| − | As the documentation of gradients in dicom data is not standardized, MRI scanners handle them differently. Because of that there is a big need to add/modify gradients manually.
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| − | | |
| − | == Interface ==
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| − | This screen shots show the interface and its changes during the last months.
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| − | <gallery caption="Interface" widths="200px" heights="200px" perrow="4">
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| − | Image:DWI_Gradient_Editor_v3.jpg | 3rd Version
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| − | Image:DWI_Gradient_Editor_v2.jpg | 2nd Version, embedded in Slicer3
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| − | Image:DWI_Gradient_Editor.jpg| 1st Version
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| − | </gallery>
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| − | == How to use the Editor==
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| − | *1.Step: Generate a Nrrd-header of your DWI data. Use the "Dicom to Nrrd" module in Slicer3 (Modules->Converters->Dicom to Nrrd).
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| − | **-> A nhdr-file will be created.
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| − | *2.Step: Use the output (nhdr-file) as an input of the Volumes module.
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| − | **-> The Gradient Editor will be enabled. If you load any other type of dataset the Editor will be disabled.
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| − | | |
| − | === What you can do now ===
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| − | #''' Choose Measurement Frame'''.
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| − | ## '''Negative''': Select the columns you want to negative.
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| − | ## '''Swap''': Select two columns you want to swap.
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| − | ## '''Rotate''': Select one column you want to rotate by an angle you can
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| − | ### choose from a given set of values.
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| − | ### set yourself.
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| − | ## '''Set your own values.
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| − | # '''Define Gradients'''.
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| − | ## If the .nhdr file has the information about the gradients, the editor will put them in the text field.
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| − | ## You can copy/paste your own gradients in the text field.
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| − | ## You can load gradients from a plain text file or .nhdr file.
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| − | #'''Run test'''.
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| − | ## Add a Feducial Mask. To see if the chosen parameters are reasonable, you can run a test that
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| − | ### computes the Tensor
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| − | ### visualises them by Tractography Seeding.
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| − | #'''Cancel''': All parameters are restored to orginial.
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| − | == Additional Information == | |
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| − | Nrrd format: [http://wiki.na-mic.org/Wiki/index.php/NAMIC_Wiki:DTI:Nrrd_format http://wiki.na-mic.org/Wiki/index.php/NAMIC_Wiki:DTI:Nrrd_format]
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