Hi Alfonso,
Thank you for your reply. In the attached archive, the file
'run-8.json' is the one previously discussed.
I also want to ask a related question. When I tried to use the 2nd
default pipeline including the fieldmap-based distortion
correction, I got the following errors:
warning: unable to find EchoTime1 or EchoTime information in [. .
.]\conn_project01\data\BIDS\sourcedata\sub-0001\run-6.nii
warning: unable to find PhaseEncodingDirection information in [. .
. ]\conn_project01\data\BIDS\sourcedata\sub-0001\ref_run-8.nii
ERROR DESCRIPTION:
Error using conn_setup_preproc
insufficient information for vdm creation. Skipping subject 1
session 1...
The protocols are as follows:
run-6 - fieldmap amplitude (2 images in one file)
run-7 - fieldmap phase
run-8 - fMRI
Consistent with the above error message, I did not find EchoTime in
run-6.json, although run-7.json has a field "EchoTime": 0.0074 (the
larger of the two echo times).
Also in the file run-8.json, I did not find
PhaseEncodingDirection.
I could get around this fieldmap issue by converting from DICOM to
nii and json by the program MRIcroGL. It produced JSONs with all
the above-mentioned fields, and I am attaching them for reference
(files with long names denoting protocols).
It would be good if this could be fixed in CONN, so that there is
no need to switch between programs.
Best,
Dmitry
Threaded View
| Title | Author | Date |
|---|---|---|
| Dmitry Sinitsyn | Apr 21, 2025 | |
| Alfonso Nieto-Castanon | Apr 21, 2025 | |
| Dmitry Sinitsyn | Apr 29, 2025 | |
| Dmitry Sinitsyn | Apr 22, 2025 | |
