Alzheimer’s Disease Neuroimaging Initiative

Processing Sites Updates

1 November 2008
This is the latest update for processing sites that addresses which scan to use if the site did two scans for a particular timepoint. Click here to download the...
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Scaled 2 Uploads

1 October 2008
As of 10/01/2008 pre-processed files uploaded to LONI from Mayo may be labeled as either *_scaled or *_scaled_2. Scaled_2 files were rescaled by disabling the scaling on the axis...
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Incorrect GE Gradients used for Gradient Warping Correction

5 June 2008
Please discard any preprocessed GW data from the subjects and scan dates below that were downloaded from LONI before 06/01/2007.
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Duplicate Scaled Images

5 June 2008
A number of scaled images were uploaded in duplicate. They have now been deleted.
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Preprocessed Image Recalls – 06/05/08

5 June 2008
A discrepancy was found in the phantom scaling.
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Philips Scanners Image Scaling

4 June 2008
The ADNI MRI core has uncovered a potential concern about the accuracy of image scaling in the frequency encode direction on Philips 1.5T systems.
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ADNI: MRI Methods
Publications
21 April 2008
Magnetic resonance imaging (MRI), (18F)-fluorodeoxyglucose positron emission tomography (FDG PET), urine serum, and cerebrospinal fluid (CSF) biomarkers, as well as clinical/psychometric assessments are acquired at multiple time points. All...
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Human Amyloid Imaging Conference, April 11, 2008 Chicago

4 February 2008
Recent findings in the field of human amyloid imaging will be presented and discussed.
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New Biomarker Data Available

4 February 2008
New biomarker data is available for download. Authorized ADNI users may obtain this data by clicking the “Access Clinical Data Archive” link from the Clinical Data page. If you...
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Recalled ADNI PET scans replaced with new re-worked images

4 January 2008
The original raw and processed PET images for the BV visit FDG scan for subjects 128_S_1407 and 128_S_1408 contained reconstruction artifacts resulting from a problematic attenuation correction. When the...
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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 or visit the Data News and Recalls page. To subscribe, please enter your email address, first and last name in the form above. 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 2008

Data News & Spreadsheets

Data Recall