|
Size: 656
Comment:
|
Size: 400
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 1: | Line 1: |
| = Problem with two-pass normalisation = The standard aa normalisation routine ([http://imaging.mrc-cbu.cam.ac.uk/imaging/AutomaticAnalysisVersions#head-20f22d73e91b461dcf6bf69e792269bdce21ecf4 Automatic Analysis normalisation with segment]) may fail in certain cases. The example below illustrates it: at the bottom, the normalised brain on the left is smaller and has not been reoriented correctly. |
= FMRI analysis problems = Here is an incomplete list of problems we've come up against in FMRI analysis: |
| Line 4: | Line 4: |
| In order to allow monitoring of such occurrences, please mail to imagerstech@mrc-cbu.cam.ac.uk if you notice this problem. Our solution: For this participant, we used the SPM normalize procedure instead of the aamod_norm_noss and rewrite modules. |
* RemoveBadScans * ProblemTwoPassNormalization * ReverseNormalization * ["Transforming SPM world coordinates to voxel coordinates"] * [:GettingaRegionsCentreOfMass:Getting a region's centre of mass] * ["Extracting beta, standard error and confidence interval for a coordinate"] |
FMRI analysis problems
Here is an incomplete list of problems we've come up against in FMRI analysis:
- ["Transforming SPM world coordinates to voxel coordinates"]
[:GettingaRegionsCentreOfMass:Getting a region's centre of mass]
- ["Extracting beta, standard error and confidence interval for a coordinate"]