Evidence map›Paper›PMID 34252877›Full record

ArticleNeuroImage. Clinical2021

FDG PET metabolic signatures distinguishing prodromal DLB and prodromal AD.

Kejal Kantarci, Bradley F Boeve, Scott A Przybelski, Timothy G Lesnick, Qin Chen, Julie Fields, Christopher G Schwarz, Matthew L Senjem, Jeffrey L Gunte, Clifford R Jack and 12 more

Open access · goldAbstract read
In one paragraph

Article in NeuroImage. Clinical, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 2 pooled it
5.6field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

40 citing papers in PubMed, 2 syntheses or guidelines pooled it, 53 citations in OpenAlex.

  1. Pooled it
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  5. Effect of genetic factors on [European journal of nuclear medicine and molecular imaging · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

22 authors at 4 institutions in 1 country.

Kejal KantarciDepartment of Radiology, Mayo Clinic, Rochester, MN, USA. Electronic address: kantarci.kejal@mayo.edu.
Bradley F BoeveDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Scott A PrzybelskiDepartment of Health Sciences Research, Mayo Clinic, Rochester, MN, USA.
Timothy G LesnickDepartment of Health Sciences Research, Mayo Clinic, Rochester, MN, USA.
Qin ChenDepartment of Radiology, Mayo Clinic, Rochester, MN, USA.
Julie FieldsDepartment of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, USA.
Christopher G SchwarzDepartment of Radiology, Mayo Clinic, Rochester, MN, USA.
Matthew L SenjemDepartment of Information Technology, Mayo Clinic, Rochester, MN, USA.
Jeffrey L GunteDepartment of Information Technology, Mayo Clinic, Rochester, MN, USA.
Clifford R JackDepartment of Radiology, Mayo Clinic, Rochester, MN, USA.
Paul MinDepartment of Radiology, Mayo Clinic, Rochester, MN, USA.
Manoj JainDepartment of Radiology, Mayo Clinic, Jacksonville, FL, USA.
Toji MiyagawaDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Rodolfo SavicaDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Jonathan Graff-RadfordDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Hugo BothaDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
David T JonesDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
David S KnopmanDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Neill Graff-RadfordDepartment of Neurology, Mayo Clinic, Jacksonville, FL, USA.
Tanis J FermanDepartment of Psychiatry and Psychology, Mayo Clinic, Jacksonville, FL, USA.
Ronald C PetersenDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Val J LoweDepartment of Radiology, Mayo Clinic, Rochester, MN, USA.
Mayo Clinic in Arizona · USWinnMed · USMayo Clinic · USMayo Clinic in Florida · US

Funding

THE PGRN/TDP-43 AXIS IN ALZHEIMER?S DISEASE AND NEURODEGENERATIONP50AG016574 · NIA · MAYO CLINIC ROCHESTER · PI PETERSEN, RONALD C · 1999 to 2018
$36.9M
Longitudinal Imaging Biomarkers of Prodromal DLBU01NS100620 · NINDS · MAYO CLINIC ROCHESTER · PI Bradley F Boeve, KEJAL KANTARCI · 2017 to 2026
$19.2M
PREDICTING ALZHEIMERS DISEASE WITH MAGNETIC RESONANCER01AG011378 · NIA · MAYO CLINIC ROCHESTER · PI JACK, CLIFFORD R. · 1993 to 2017
$12.1M
EXTRAMURAL RES FACIL IMPROVEMENT PROG: POLYCYSTIC KIDNEY DISEASE, RENAL STUDIES,C06RR018898 · NCRR · MAYO CLINIC · PI BURNETT, JOHN C · 2004 to 2004
$2.3M
NCRR NIH HHS C06 RR018898NIA NIH HHS P50 AG016574NIA NIH HHS R01 AG011378NINDS NIH HHS U01 NS100620
6 · The paper itself

Abstract

background and purposePatients with dementia with Lewy bodies (DLB) are characterized by hypometabolism in the parieto-occipital cortex and the cingulate island sign (CIS) on

methodsPatients with MCI from the Mayo Clinic Alzheimer's Disease Research Center who underwent FDG PET at baseline and progressed to either probable DLB (MCI-DLB; n = 17) or AD dementia (MCI-AD; n = 41) during follow-up, and a comparison cohort of CU controls (n = 100) were included.

resultsPatients with MCI-DLB had hypometabolism in the parieto-occipital cortex extending into temporal lobes, substantia nigra and thalamus. When compared to MCI-AD, medial temporal and posterior cingulate metabolism were preserved in patients with MCI-DLB, accompanied by greater hypometabolism in the substantia nigra in MCI-DLB compared to MCI-AD. In distinguishing MCI-DLB from MCI-AD at the maximum value of Youden's index, CIS ratio was highly specific (90%) but not sensitive (59%), but a higher medial temporal to substantia nigra ratio was both sensitive (94%) and specific (83%).

conclusionFDG PET is a potential biomarker for the prodromal stage of DLB. A higher medial temporal metabolism and CIS ratio, and lower substantia nigra metabolism have additive value in distinguishing prodromal DLB and AD.

Indexed as

Alzheimer DiseaseCognitive DysfunctionLewy Body DiseaseFluorodeoxyglucose F18HumansPositron-Emission TomographyFluorodeoxyglucose F18Alzheimer's diseaseCingulate island signDemenia with Lewy bodiesFDG PETMild cognitive impairment

Identifiers

PMID34252877
PMCPMC8278422
OpenAlexW3180258345

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.