Difference between revisions of "NA-MIC/Projects/External Collaboration/Measuring Alcohol and Stress Interaction"
From NAMIC Wiki
| Line 39: | Line 39: | ||
<h1>Progress</h1> | <h1>Progress</h1> | ||
Prior to the project week: | Prior to the project week: | ||
| − | + | * Study data on 8 subjects at two time points (alcohol naive and post-induction) organized | |
| − | + | * GM/WM/CSF atlas will be constructed for the study data. | |
During Project Week | During Project Week | ||
| Line 46: | Line 46: | ||
| − | + | * Optimized segmentation parameters for vervet data | |
| − | + | * Improved accuracy of subcortical segmentation in rhesus data set | |
{| | {| | ||
| Line 54: | Line 54: | ||
|} | |} | ||
| − | + | * Developed an ITK utility for multiresolution demons registration. (Source code available for download from the NAMIC sandbox) | |
{| | {| | ||
|[[Image:CheckerB4Reg_Screenshot.jpg |thumb|320px|Checker Image of source and target before registration ]] | |[[Image:CheckerB4Reg_Screenshot.jpg |thumb|320px|Checker Image of source and target before registration ]] | ||
Revision as of 21:54, 26 June 2008
Home < NA-MIC < Projects < External Collaboration < Measuring Alcohol and Stress Interaction Return to Project Week Main Page |
Key Investigators
- Wake Forest: Bob Kraft, Jim Daunais
- BWH: Kilian Pohl
- Virginia Tech: Chris Wyatt, Vidya Rajagopalan
- Kitware: Luis Ibanez
Objective
The objectives of this project are to:
- Optimize the EM Brain Classifier in Slicer on MRI images of vervets.
- Segment data from N subjects.
- Optimize GM/WM/CSF segmentation so that calculation of GM/WM volume and ratios between the two states can be automated.
- Optimize hippocampus, putamen and caudate segmentation so that volume comparison between states can be performed.
Approach, Plan
We will use the current implementation of the EM Segmenter in Slicer. Using a manual segmentation as an estimate of ground truth in a single subject, we will optimize the EM segmenter parameters over the classification error and running time.
Progress
Prior to the project week:
- Study data on 8 subjects at two time points (alcohol naive and post-induction) organized
- GM/WM/CSF atlas will be constructed for the study data.
During Project Week
- Optimized segmentation parameters for vervet data
- Improved accuracy of subcortical segmentation in rhesus data set
- Developed an ITK utility for multiresolution demons registration. (Source code available for download from the NAMIC sandbox)
