Question Posted 05/06/14:
Hi, I am working on MR images. I have identified patients converted from MCI to AD. I have also collected the available data of those patients. But how to know which data are of MCI stage and which are after conversion?
Response posted 07/08/14 by Sarah Walter:
Please reference the data dictionary.
Examination Date in the PDXCONV.csv and DXSUM.csv will list the dates of any diagnostic change.