Thanks a ton Volkmar. This is really a great toolbox.

Thanks again !


Dear Sahil,

there is a tool called "Extract Data from ROI" in the Volumes toolbox. You will find a link to the toolbox download page on the SPM extensions page at Download and install the latest version from and enjoy!



On Mon, Sep 21, 2015 at 8:04 PM, Sahil Bajaj <[log in to unmask]> wrote:
**Sorry for the typo: Dimensions for ROI are also 256x256x175 (not 356)..

On Mon, Sep 21, 2015 at 7:58 PM, Sahil Bajaj <[log in to unmask]> wrote:
Dear SPM community,

I was wondering if there is any way to extract MRI image (.nii format) intensities ? I have a set of MRI images (T1 maps) with dimensions: 256x256x175x20 where X=256, Y=256, Z=175 and # of time frames is 20.

I can see image intensities can be read using load_nii (available in NIFTI Matlab toolbox) but I have an ROI (in nii format) with same dimensions as MRI image (356x256x175) and I am able to overlay ROI over MRI images.

So I am interested in plotting image intensities for the voxels for this particular ROI vs. time frame.

I would really appreciate any help.