Difference between revisions of "T1 mapping for variable flip angle"
From NAMIC Wiki
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<h3>Objective</h3> | <h3>Objective</h3> | ||
* Estimate effective T1 from multi-spectral FLASH MRI scans with different flip angles | * Estimate effective T1 from multi-spectral FLASH MRI scans with different flip angles | ||
| + | * Implement T1 mapping algorithm as a Slicer extension. | ||
</div> | </div> | ||
<div style="width: 27%; float: left; padding-right: 3%;"> | <div style="width: 27%; float: left; padding-right: 3%;"> | ||
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* Run Python script and [https://surfer.nmr.mgh.harvard.edu/fswiki/mri_ms_fitparms Freesurfer code] on [https://dblab.duhs.duke.edu/modules/QIBAcontent/index.php?id=1 QIBA T1 phantom] | * Run Python script and [https://surfer.nmr.mgh.harvard.edu/fswiki/mri_ms_fitparms Freesurfer code] on [https://dblab.duhs.duke.edu/modules/QIBAcontent/index.php?id=1 QIBA T1 phantom] | ||
* Test the Slicer module on MGH Brain Tumor MR Data with multiple flip angles | * Test the Slicer module on MGH Brain Tumor MR Data with multiple flip angles | ||
| + | * Go through Slicer tutorials and developer forum to learn how to implement Slicer extensions. | ||
| + | * Go over VTK documentation to learn how it works. | ||
</div> | </div> | ||
<div style="width: 27%; float: left; padding-right: 3%;"> | <div style="width: 27%; float: left; padding-right: 3%;"> | ||
<h3>Progress</h3> | <h3>Progress</h3> | ||
* Compared the results using Python with Freesurfer and ground truth of T1 for QIBA data | * Compared the results using Python with Freesurfer and ground truth of T1 for QIBA data | ||
| − | * T1 mapping results on QIBA data using Slicer+Python are almost identical to the results using Freesurfer and comparable with the ground truth | + | * T1 mapping results on QIBA data using Slicer+Python are almost identical to the results using Freesurfer and comparable with the ground truth. |
| + | * Implemented T1 mapping as a Slicer extension using python. The extension has GUI that as an input takes 6 DICOM images with corresponding flip angles and repetition time. The extension computes T1s and stores them in a new VTK volume node. | ||
</div> | </div> | ||
</div> | </div> | ||
Revision as of 22:16, 10 January 2015
Home < T1 mapping for variable flip angle
T1 Mapping UI and Result using MGH Brain Tumor MR
Key Investigators
- MGH: Xiao Da, Artem Mamonov, Jayashree Kalpathy-Cramer
- BWH: Andriy Fedorov
Project Description
Objective
- Estimate effective T1 from multi-spectral FLASH MRI scans with different flip angles
- Implement T1 mapping algorithm as a Slicer extension.
Approach, Plan
- Create a Slicer module for T1 mapping for multiple flip angles using Python script
- Run Python script and Freesurfer code on QIBA T1 phantom
- Test the Slicer module on MGH Brain Tumor MR Data with multiple flip angles
- Go through Slicer tutorials and developer forum to learn how to implement Slicer extensions.
- Go over VTK documentation to learn how it works.
Progress
- Compared the results using Python with Freesurfer and ground truth of T1 for QIBA data
- T1 mapping results on QIBA data using Slicer+Python are almost identical to the results using Freesurfer and comparable with the ground truth.
- Implemented T1 mapping as a Slicer extension using python. The extension has GUI that as an input takes 6 DICOM images with corresponding flip angles and repetition time. The extension computes T1s and stores them in a new VTK volume node.
