Question

Question Posted 08/07/14:
I just download all the PET data. In the csv file, there are two subjects, 031_S_4149 scaned on 2013-08-17 and 010_S_0788 scaned on 2006-10-09. But I can't find them in the PET scan information table from ALL PET Image Acquisition, while other 5000 images I can find the corresponding subject in the table with exact same RID and exam date. So I want to ask what is the problem with these two subjects.
Response posted 08/13/14 by Bob Koeppe:
From the PET point of view, I don't see anything wrong with these scans. There are available at LONI, both raw and processed images. I do note that the 010_S_0788 subject never returned after baseline. The 031_S_4149 subject has continued with scans. I would ask ADCS personnel directly whether there is an issue with these subjects from their end of things.
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Due to serious data quality concerns, all data with PTIDs containing the format 381_S_10### have been removed from the ADNI data repository. ADNI leadership strongly advises that data with these PTIDs not be used in any data analysis, submission of abstracts, or publications. Furthermore, ADNI leadership requests that any abstracts or papers which have been submitted using this data be appropriately revised due to concerns with data quality. More information click here.

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