Multi-label images

Submitted by qinyuanyuan on Wed, 05/16/2012 - 20:21

 Hi, i want to know if the ROI-wise analysis could define the multi-label images?
Or it could just define 2 ROIs? Thanks.

Forums:

YAN Chao-Gan

Mon, 05/21/2012 - 19:18

 ROI-wise FC analysis you can defile as much ROI files as you want.

If you put multiple labels in one ROI files, I guess you can use REST Extract ROI signals, and they use corrcoef function in MATLAB.

qinyuanyuan

Wed, 05/23/2012 - 04:52

Then what does  the txt file after Extracting  ROI signals mean? Thanks!

yubing

Sat, 10/13/2012 - 09:59

今天终于琢磨明白老师的讲解了，做个记号

YAN Chao-Gan

Fri, 05/25/2012 - 18:41

1. REST->Utilities->Extract ROI signals, check "Multiple label values in a single mask file" checkbox.
2. You will have the ROI TC for all the regions stored in "XXX_entireROISignals.txt".
3. You will have the correlation coefficients between each two regions in "XXX_entireResultCorr.txt".;
4. If you also need the Fisher's Z transformed version, please load "XXX_entireResultCorr.txt" or "XXX_entireResultCorr.mat" and then run:

ResultCorr_FisherZ = 0.5 * log((1 +ResultCorr)./(1- ResultCorr));


qinyuanyuan

Fri, 05/25/2012 - 19:04

 Thanks!