Alzheimer’s Disease Neuroimaging Initiative

Core Q&As

PET Core Q&A

I read from ADNI3 PET imaging protocol that you collect venous blood samples throughout scan for generating venous input function, but I couldnâ€™t locate where this data...
07/18/24

Hello, Hope this email finds you well. I am writing to ask the difference between the 'Coreg, Avg, Std Img and Vox Siz, Uniform 6mm Res <- 30 min 3D FDG - Iter(Brain M...
05/22/24

Thanks for your help earlier with guiding me through downloading the UC Berkeley tables. You mentioned a data dictionary being available with the UC Berkeley header in front o...
05/21/24

Hello, I emailed a couple days ago about a question on how to access tau PET and amyloid PET data for the patients in ADNI database. I was told that this information could be ...
05/21/24

Hello, where can i find an overview table of the PET scanner + recon-method per subject or site? thank you
12/14/20

Hello. Hope you are well. I would like to test FreeSurfer's partial volume correction tool on the ADNI3 PET data (AV45,AV1451, FBB). The tool requires a '--psf FWHM' input ...
09/03/20

Thank you for all your work on ADNI. I would like to know what exactly does the parameter "PMFDGVOL" in the PETMETA table correspond to? Is this some sort of summary value o...
02/10/20

Hello. Is there PET data without attenuation correction available?
01/17/20

We are interested in investigating how TAU signal varies over the course of the 30 minute acquisition. To do so, I would like some assurance that the alphanumeric order that ...
01/09/20

I would like to know about PET description. when I download the csv files, there is a description about PET data and I can only understand FBB or AV45 but i cannot understand...
09/02/19

Dear Sir/Madam, I'm a postdoc at Western University, London, Ontario, Canada, My expertise is in neuroimaging. Recently I've started using ADNI database for my research pro...
08/29/19

Dear ADNI Experts, Thank you for your response (dated 05/03/2019) to my previous questions to the PET core. I have a few more questions: 1. I am unable to find the un...
05/22/19

I am interested in ADNIâ€™s PIB SUV data. I found the following tables in ADNI with PIB information: 1. PIBMETA 2. PIBPETSUVR 3. PIBPETSUVR_DICT Questions: 1....
05/03/19

I am trying to understand some of the under the hood image processing that went to create the set of PET images that we are interested in working with. I am specifically wonde...
03/13/19

Do you use PET/MR combo scanner for some of your study participants?
01/17/19

Roughly how many patients in the total ADNI data set have had FDG-PET imaging?
05/03/18

To whom it may concern, Thank you for your effort on ADNI. My question is about the pre-processed PET data. Was partial volume correction applied to the pre-processed PET ...
04/12/18

Hi, In TAUMETA3.csv, we only have access to VISCODE, which is reset to "init" or "sc" for all subjects, including the ones who already had an AV1451 before. For example 135_S...
11/06/17

Hi We are using ADNI DTI data for our research purposes. I couldn\'t find any control data (volunteer?) using IDA Search (Simple search and Advance Search). Please he...
09/10/17

Hi, I'd like to seek your expertise in viewing PET image files for ADNI2 subjects. Using advanced search to look for subjects in ADNI2 phase with PET data, I get ~359 non-uni...
06/16/17

Dear ADNI experts, I have downloaded the post-processing FDG PET data. I think that they have be normalized, including intensity and spatial. My question is about the inten...
05/18/17

I am a little overwhelmed by the wealth of data available on the site, however, I seem to be unable to find global SUVRs for all of the 818 WGS samples. Would you please point...
04/25/17

For part of our project, we are trying to validate measurements with the UCBERKELEYAV45 analysis uploaded on the shared data website. From using the provided documentation, it...
03/30/17

To whom it may concern: I proceed to analyze \'pre-processed\' PET (\'Coregister, Averaged\'), and hope to calculate SUV (not SUVR). But, I cannot find what unit of the ima...
02/22/17

For the Tau tracer AV1451 scans, does the procedure for signal intensity normalization use the whole brain mask or is it another mask (e.g., cerebellum)?
01/17/17

Hello. Is there any information available regarding patients who were PIB or amyloid-beta positive? I know subjects were scanned with PIB and AV45, but I'd like to know where ...
01/10/17

I a m currently working with the amyloid PET data from the ADNI-2 cohort, aiming to extract textural features from baseline scans and compare them to clinical follow-up. I wa...
12/28/16

Dear experts, We want to use PET images with step 2 preprocessing (coregistered, averaged) to coregister them to T1 scans and then perform partial value correction, but I c...
12/15/16

I'm trying to figure out how I can find out what "volume-corrected" PET images in the imaging database are. I've come across several of these during my data analysis. What me...
12/01/16

What is the best colormap for PET imaging in image processing?
11/21/16

Dear Experts. I've collect PET images across ADNI1/ADNIGO/ADNI2 with preprocessing step 3 and with all types of tracers (FDG, AV45, PIB, etc.). I'd like to tell which tracer w...
11/17/16

I am wondering, is the PET data standardized, or regularized so that the pixel corresponding to the same voxel for all patients? I tried to download some patients data with l...
10/13/16

To whom it may concern. Does the PET Image data include the corresponding CT scan data? Thank you and best regards, Daniel Rath
09/20/16

Is there a way to know the point spread function of different scanners participating in ADNI PET data?
07/06/16

Dir Sir or Madame, Currently, I am working with PET scans from the ADNI database in my research. I try to understand all of the four pre-processing types (http://adn...
06/21/16

I am trying to reduce the PVE and the between-centre variability of PET data. I would like to know if I can have access to uniformity phantom scans from each centre as well as...
06/02/16

Is the data provided in SUV or CMRglc? We are trying to decide if we are going to use your data as controls for our study, and our pipeline is set up to handle CMRglc data, bu...
04/07/16

I have searched into documentation but didn't found information concerning resolution FWHM of each PET scanner used in ADNI project. Do you think it is absolutely needed to...
03/17/16

To whom this may concern, I am using the AV45 images and looking at Regional uptake. What are the units for the intensity of image. I have looked everywhere and I can't fin...
02/24/16

To whom this may concern, I am using the AV45 images and looking at Regional uptake. I just want to confirm that the downloaded images (stage 4 processed) are SUV images. A...
02/24/16

I collected preprocessed PET images with "Coreg, Avg, Std Img and Vox Siz, Uniform Resolution" across all ADNI study (ADNI1, ADNIGO, and ADNI2). In my case, I'd like to match ...
02/13/16

Dear experts, i\'m interested in donwnloading raw pet fdg images but i have some problems. I tried to download ANALYZE format and for every patient i find 6 scans. I can\\\\\...
12/04/15

Hello, I am using the PET images from ADNI to for a voxel based study but I noticed that you have already blurred the images so that final images have a common PSF. I was wo...
10/29/15

I would like to use ADNI AV45 PET data for voxel wise study in MNI space. I downloaded the completely processed ac-pc, std, smoothed images but was wondering what transformati...
10/23/15

Dear sir/madam, I wished to know the utility of dynamic (six 5 min frames) acquisition over static for FDG-PET
08/21/15

I have recently downloaded all the "Early AV45" scans as NiFTI-4D, and I was wondering if the frame duration is consistent across the sites/scanners. I downloaded an exemplar...
05/07/15

I have downloaded the dynamic (90 min) Pib-PET images from ADNI. However, I do not see any information regarding their arterial input function. I noticed that most of the subj...
02/25/15

Hello, I run a medical imaging CRO. We have been approached by a client to do visual ratings of the raw florbetapir data. Is the raw data available to us? Do you have a sugges...
11/25/14

What does cerebellum = 1 mean in UPitt-PIB PET analysis file?
11/10/14

I just download all the PET data. In the csv file, there are two subjects, 031_S_4149 scaned on 2013-08-17 and 010_S_0788 scaned on 2006-10-09. But I can't find them in the PE...
08/07/14

Hi, can you tell me what units were used in this image 02_S_4213, F, 78.1, ADNI Brain PET: Raw FDG, Original Thank you. Vic
08/04/14

Dear the officer: Sorry to bother you. For the PET subject: 052_S_0989/ADNI_Brain_PET__Raw_FDG/2011-01-05_10_36_42.0/I213447, There are totally 6 scans: ADNI_052_S_098...
06/11/14

Continuation to: "Sound procedure to normalize LONI PET scans". Dear ADNI experts, thanks so much for answering my previous question. However, I'm still wondering whether I sh...
06/11/14

Sound procedure to normalize processed PET scans to MNI space. Dear ADNI experts, we are interested in normalizing LONI PET scans in the most processed format (Co-reg, Avg, St...
06/03/14

Dear ADNI experts, We are interested in quantifying a set of ADNI FDG-PET scans. My concern is whether we can merge both ADNI1 FDG-PET and ADNI2 FDG-PET datasets in its mos...
04/30/14

Could you please tell me if any ADNI dynamic PET data has been supplemented by the measured blood/plasma data (input function)? Without that, the advance kinetic analysis of ...
03/13/14

Dear ADNI, Me and my colleagues have carried out a study where we compare the diagnostic ability of CSF Abeta42 and regional AV-45 PET measures. It would be very valuable...
03/04/14

Is it possible for me to come at my own cost and get trained in quantitative analysis of PET images using standardized software programmes at a ADNI centre in the USA
01/07/14

Hi, I was interested in downloading the FDG-PET images for analysis, so I searched for the coregistered, averaged FDG images in the IDA. When I went through the data, I notice...
09/16/13

For ADNI1 FDG-PET scans, I have noticed that there are markedly fewer fully post-processed scans at months 18 and 24. That is, the last step in the post-processing pipeline (i...
07/24/13

Could you please help me out in locating the number of patients from each group (AD/MCI/controls) and each ADNI cohort (1/GO/2) that have a successful FDG-PET scan and PiB/AV-...
07/03/13

Dear All, may I ask you if ADNI has defined a FDG-PET cut-off value for evaluating the cerebral glucose metabolism as normal or abnormal? What variables have I look for in ord...
05/09/13

Dear All, may I ask you where I can find the 103 baseline PIB-PET data regarding 19 elderly cognitevely normal controls, 65 MCI subjects and 19 AD subjects, cited in the paper...
05/09/13

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Core Q&As

PET Core Q&A