Question Posted 09/12/16:
Dear ADNI investigators,

I would like to know if any of the participants who underwent a fMRI resting-state scan also underwent a DTI scan, since I saw that these scans were respectively collected from Philips and GE systems only.

Thank you very much.
Response posted 09/19/16 by ADNI MRI Core:
Thanks for your question to the ADNI MRI Core.

I'm sorry there is not. Subjects only had 1 research sequence performed based on the type of system they were being scanned on. GE = DTI, Philips = fMRI and Siemens = ASL. No subjects underwent multiple modalities.

Response posted 10/03/16 by ADNI MRI Core:
Thank you for your question to the ADNI MRI Core.

Unfortunately no subjects will have those scans together for ADNI2. As you stated, DTI scans were only obtained on subjects that were scanned on GE scanners. fMRI scans were only acquired on Philips MRI Scanners. The plan for ADNI3 is to acquire ASL/fMRI and DTI on every scanner though.

Thank you