ADNI MRI Recall

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.

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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.

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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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