DPABI/DPABISurf/DPARSF

Image Orientation

Submitted by Loose on

Dear readers,

I am wondering about the following circumstance:

I realigned my fMRI-images with DPARSF (s. realigned_image) but now I noticed that their orientation (anteriro-posterior) does not match that of the SPM template used for normalization (SPM_template). Is that a mistake of my own or does DPARSF change this orientation difference during normalization?

with kind regards

Markus Loose

 

Frequency Band - Questions about ReHo and fALFF

Submitted by HpaulFr on

Hi everybody, i've some questions about DPARSF and the frequency range which is selected for processing :

Q. 1 : If I want to chose a specific frequency band for ReHo analysis (like in this paper : doi:10.1371/

p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 7.0px Helvetica}

journal.pone.0086818.: IMF1 : (0.1-0.25 Hz), IMF2 (0.1-0.04 Hz)...), is this filter has to be used (cf screenshot) ?

How to perform spectral DCM analysis

Submitted by fffffhhd on
Dear experts,
 
I was wondering how to perform spectral dynamic causal model (spDCM) analysis on the resting state MRI data preprocessed by DPARSFA. As I know, to perform a spDCM analysis in SPM12, I must first extract volumes of interest (VOIs) in SPM. In the manual of SPM12, before extracting VOIs, I need to regress out nuisance covariates in SPM.

Conjunction analysis

Submitted by yaosir on

Dear Chao-Gan,

I have examined ALFF abnormalities in two type of patients and I would like to examine the shared abnormalities. Acctually, I have tried to use SPM to do a conjuntion analysis, but SPM seemed to require the spm.mat file which I did have, so I was wondering that can I achieve this goal using DPABI? 

Best,

Vincent

How to view the results of F.nii after ancova analysis

Submitted by gekehe on

Hi,

Sorry to bother you again. I  performed ANCOVA analysis with dpabi and obtained 10 nii images including the F.nii map. But I cannot view the results of F.nii using dpabi viewer. Some parameters of the F.nii can be viewed  in dpabi viewer overlay list (see below).