This repository is under review for potential modification in compliance with Administration directives. Close 
Occasionally, the MR Core identifies preprocessed data through the Quality Control Process that is incorrect. In such cases, the MR Core, through LONI, will make an attempt to contact institutions that have downloaded data identified as incorrect.
Continue reading...Monday, October 1, 2007
Comments Off on Updates for Siemens HRRT and Siemens BioGraph HiRez PET scan warnings
All HRRT PET scans from sites 029 and 128 performed prior to the posted data recall advisory have been reworked. One HRRT PET scan has been reworked from site 032.
Continue reading...Monday, April 2, 2007
Comments Off on New Site with PET scanner change
A fourth ADNI site has just replaced their PET scanner (the other 3 sites are listed under "Old Warnings"). As mentioned below, investigators should be aware of resolution differences between scanners, hence should consider analyzing the PET data that has been matched for resolution.
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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.
Wednesday, October 3, 2007
Comments Off on ADNI MRI Recall