Incorrect Subject 1 November 2007 The baseline PET FDG scan for ADNI subject 109_S_1343 has been determined to be the wrong subject. At the time of the 6m PET scan on 109_S_1343, the PET... Read More>
Masks 4 October 2007 Masks created by the MR Core as part of preprocessing are useful for performing N3 correction and are not brain masks. Therefore, the description of these masks has been... Read More>
Preprocessed Image Recalls – 10/3/07 3 October 2007 Please discard any preprocessed scaled data from the subjects and scan dates below that were downloaded from LONI before 10/03/2007. Read More>
PET Sites with scanner changes 3 October 2007 Three sites have replaced their PET scanner during the ADNI project. Investigators should be aware of resolution differences between scanners, and should consider analyzing the PET data that has... Read More>
Data Recall Advisory 3 October 2007 From time to time, our PET Quality Control process identifies data as faulty that have already been posted and downloaded by users. We are not able to notify individual... Read More>
ADNI MRI Recall 3 October 2007 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... Read More>
Siemens BioGraph HiRez PET scan warning 8 May 2007 There exists a software bug in OSEM reconstruction for Siemens BioGraph HiRez PET/CT scanners. Depending upon the circumstances, this artifact can be quite minor or can be quite substantial.... Read More>
