Evidence map›Paper›PMID 23178035›Full record

Trial reportAlzheimer's & dementia : the journal of the Alzheimer's Association2013

Amyloid positron emission tomography with (18)F-flutemetamol and structural magnetic resonance imaging in the classification of mild cognitive impairment and Alzheimer's disease.

Ranjan Duara, David A Loewenstein, Qian Shen, Warren Barker, Elizabeth Potter, Daniel Varon, Kristen Heurlin, Rik Vandenberghe, Christopher Buckley

2 registry-linked trialsOpen access · greenAbstract readClinical Trial, Phase IIControlled Clinical Trial
In one paragraph

Trial report in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
3.8field-weighted citation impact, top 7% 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.

NCT02778971 completednot on this mapstarted 2016, after this paper: background citation

Implications for Management of PET Amyloid Classification Technology

TypeobservationalSponsorUniversity of UtahRan2016 to 2022Enrolled41ConditionsMild Cognitive Impairment, Dementia, Alzheimer's DiseaseArms[18F]Flutemetamol
NCT02781220 terminatednot on this mapstarted 2016, after this paper: background citation

Implications for Management of PET Amyloid Classification Technology in the Imaging Dementia(IDEAS) Trial

TypeobservationalSponsorUniversity of UtahRan2016 to 2023Enrolled69ConditionsMild Cognitive Impairment, Dementia, Alzheimer's Disease
3 · Its place in the literature

Who cites it

35 citing papers in PubMed, 60 citations in OpenAlex.

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  16. American journal of nuclear medicine and molecular imaging · 2018
    Review
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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

9 authors at 3 institutions in 1 country.

Ranjan DuaraWien Center for Alzheimer's Disease and Memory Disorders, Mount Sinai Medical Center, Miami Beach, FL, USA. Duara@msmc.com
David A Loewenstein
Qian Shen
Warren Barker
Elizabeth Potter
Daniel Varon
Kristen Heurlin
Rik Vandenberghe
Christopher Buckley
Mount Sinai Hospital · USMount Sinai Medical Center · USUniversity of Miami · US

Funding

Semantic Interference and Early Detection of DementiaR01AG020094 · NIA · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI LOEWENSTEIN, DAVID · 2003 to 2007
$2.0M
NIA NIH HHS R01 AG020094
6 · The paper itself

Abstract

objectiveTo evaluate the contributions of amyloid-positive (Am+) and medial temporal atrophy-positive (MTA+) scans to the diagnostic classification of prodromal and probable Alzheimer's disease (AD).

methods(18)F-flutemetamol-labeled amyloid positron emission tomography (PET) and magnetic resonance imaging (MRI) were used to classify 10 young normal, 15 elderly normal, 20 amnestic mild cognitive impairment (aMCI), and 27 AD subjects. MTA+ status was determined using a cut point derived from a previous study, and Am+ status was determined using a conservative and liberal cut point.

resultsThe rates of MRI scans with positive results among young normal, elderly normal, aMCI, and AD subjects were 0%, 20%, 75%, and 82%, respectively. Using conservative cut points, the rates of Am+ scans for these same groups of subjects were 0%, 7%, 50%, and 93%, respectively, with the aMCI group showing the largest discrepancy between Am+ and MTA+ scans. Among aMCI cases, 80% of Am+ subjects were also MTA+, and 70% of amyloid-negative (Am-) subjects were MTA+. The combination of amyloid PET and MTA data was additive, with an overall correct classification rate for aMCI of 86%, when a liberal cut point (standard uptake value ratio = 1.4) was used for amyloid positivity.

interpretation(18)F-flutemetamol PET and structural MRI provided additive information in the diagnostic classification of aMCI subjects, suggesting an amyloid-independent neurodegenerative component among aMCI subjects in this sample.

Indexed as

Alzheimer DiseaseCognitive DysfunctionAdultAgedAged, 80 and overAmyloidAniline CompoundsBenzothiazolesFemaleHumansLogistic ModelsMagnetic Resonance ImagingMaleMiddle AgedNeocortexNeuropsychological TestsAmyloidAniline CompoundsBenzothiazolesflutemetamol

Identifiers

PMID23178035
PMCPMC5610964
OpenAlexW1989476860

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

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.