Id like to analyze imaging data (mainly resting state fMRI) of NL subjects who have converted to MCI. In DXSUM_PDXCONV_ADNIALL, 89 such subjects are listed, all from ADNI 2/GO. However, when using these subjects RID numbers, I am able to find imaging data for only a very small fraction. Is this possible? Am I possibly doing something wrong?
Use the PTID to find matching images.