External Email - Use Caution        

Dear all,

Have I understood correctly that the slice delay of each slice is not needed when performing slice time correction with preprocess-sess? 

I am processing an open OASIS fMRI dataset. The dataset has fMRI data in nifti format and JSON files that contain information about the data. 

In the instructions they say: "Slice timing is included in the JSON when available. Some original DICOM files did not have slice timing info. When slice timing information is unavailable use the ratio TR/#slices."

The data is collected with a Siemens scanner. 

If the slice timing is available it seems to be interleaved: 

"SliceTiming": [
        1.1025, 
        0, 
        1.165, 
        0.059999999999999998, 
        1.2250000000000001, 
        0.1225, 
        1.2875000000000001, 
        0.1825, 
        1.3474999999999999, 
        0.245, 
        1.4099999999999999, 
        0.30499999999999999, 
        1.47, 
        0.36749999999999999, 
        1.5325, 
        0.42749999999999999, 
        1.595, 
        0.48999999999999999, 
        1.655, 
        0.55000000000000004, 
        1.7175,

Could I just run slice time correction with the siemens option? 

Best regards,

Maria

_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer