Alzheimer’s Disease Neuroimaging Initiative

Incorrect Subject
PET Core
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...
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Excel file available with listing of all PET scans considered to have potential issues that may affect results of image analysis.
PET Core
1 November 2007
The Excel File now contains two additional pages with specific information for BioGraph HiRez and HRRT scans that have been reworked. The Excel file contains both Series UID and...
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Masks
MRI Core
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...
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Preprocessed Image Recalls – 10/3/07
MRI Core
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.
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PET Sites with scanner changes
PET Core
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...
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Data Recall Advisory
PET Core
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...
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ADNI MRI Recall
MRI Core
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...
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Updates for Siemens HRRT and Siemens BioGraph HiRez PET scan warnings
PET Core
1 October 2007
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...
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Siemens HRRT PET scan warnings
PET Core
8 May 2007
Two issues exist with Siemens HRRT PET images.
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Siemens BioGraph HiRez PET scan warning
PET Core
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....
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Data News & Spreadsheets

Data recalls have been consolidated into PET and MRI spreadsheets. The MRI and PET Core also posts updates in the News section.

MR Consolidated Recalls Spreadsheet

Contact for MRI Advisories
Contact for PET Advisories

Data Recall

Occasionally, the Quality Control Process identifies data as incorrect. We will make an attempt to contact institutions that have downloaded faulty data, however we may not always be able to notify individual investigators of these problems. Therefore it is advised that investigators using ADNI data subscribe to our email system. To subscribe, please enter your email address, first and last name in the form below. If you do not receive a confirmation email for your subscription, please check your spam folder or contact us at webmaster@loni.usc.edu. By subscribing to ADNI News, you agree to our privacy policy.

ADNI Archives 2007

Data News & Spreadsheets

Data Recall