Evidence map›Paper›PMID 25919662›Full record

ArticlePloS one2014

Gaussian Mixture Models and Model Selection for [18F] Fluorodeoxyglucose Positron Emission Tomography Classification in Alzheimer's Disease.

Rui Li, Robert Perneczky, Igor Yakushev, Stefan Förster, Alexander Kurz, Alexander Drzezga, Stefan Kramer, Alzheimer’s Disease Neuroimaging Initiative

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
4.5field-weighted citation impact, top 5% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 49 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. COBrain structure & function · 2022
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  15. Article
  16. Histogram-Based Features Selection and Volume of Interest Ranking for Brain PET Image Classification.IEEE journal of translational engineering in health and medicine · 2018
    Article
  17. Age-at-onset subsets of bipolar I disorders: A critical insight into admixture analyses.International journal of methods in psychiatric research · 2017
    Article
  18. Review
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

8 authors at 4 institutions in 1 country.

Rui LiInstitut für Informatik/I12, Technische Universität München, Garching bei München, Germany.
Robert PerneczkyKlinik und Poliklinik für Psychiatrie und Psychotherapie, Technische Universität München, München, Germany.
Igor YakushevNuklearmedizinische Klinik, Technische Universität München, München, Germany.
Stefan FörsterNuklearmedizinische Klinik, Technische Universität München, München, Germany.
Alexander KurzKlinik und Poliklinik für Psychiatrie und Psychotherapie, Technische Universität München, München, Germany.
Alexander DrzezgaKlinik und Poliklinik für Nuklearmedizin, Universität zu Köln, Köln, Germany.
Stefan KramerInstitut für Informatik, Johannes Gutenberg-Universität Mainz, Mainz, Germany.
Alzheimer’s Disease Neuroimaging Initiative
Technical University of Munich · DEJohannes Gutenberg University Mainz · DEKlinikum rechts der Isar · DEUniversity of Cologne · DE

Funding

Alzheimer's Disease Neuroimaging Initiative - SupplementU01AG024904 · NIA · NORTHERN CALIFORNIA INSTITUTE RES &EDUC · PI WEINER, MICHAEL W · 2004 to 2015
$121.0M
THE ROLE OF ADVANCED CAA IN ALZHEIMER'S DEMENTIAP50AG005134 · NIA · MASSACHUSETTS GENERAL HOSPITAL · PI HYMAN, BRADLEY T. · 1985 to 2018
$42.1M
Research Education ComponentP30AG062421 · NIA · MASSACHUSETTS GENERAL HOSPITAL · PI Christine S Ritchie · 2019 to 2026
$36.5M
The University of Rochester Clinical and Translational Science InstituteTL1TR000096 · NCATS · UNIVERSITY OF ROCHESTER · PI BENNETT, NANCY M, KIEBURTZ, KARL D. · 2012 to 2015
$930k
Medical Research Council MR/M024903/1NIA NIH HHS P30 AG062421NIA NIH HHS P50 AG005134NIA NIH HHS U01 AG024904
6 · The paper itself

Abstract

We present a method to discover discriminative brain metabolism patterns in [18F] fluorodeoxyglucose positron emission tomography (PET) scans, facilitating the clinical diagnosis of Alzheimer's disease. In the work, the term "pattern" stands for a certain brain region that characterizes a target group of patients and can be used for a classification as well as interpretation purposes. Thus, it can be understood as a so-called "region of interest (ROI)". In the literature, an ROI is often found by a given brain atlas that defines a number of brain regions, which corresponds to an anatomical approach. The present work introduces a semi-data-driven approach that is based on learning the characteristics of the given data, given some prior anatomical knowledge. A Gaussian Mixture Model (GMM) and model selection are combined to return a clustering of voxels that may serve for the definition of ROIs. Experiments on both an in-house dataset and data of the Alzheimer's Disease Neuroimaging Initiative (ADNI) suggest that the proposed approach arrives at a better diagnosis than a merely anatomical approach or conventional statistical hypothesis testing.

Indexed as

AgedAged, 80 and overAlzheimer DiseaseBrainFemaleFluorodeoxyglucose F18HumansMaleModels, TheoreticalNormal DistributionPositron-Emission TomographyRadiopharmaceuticalsSensitivity and SpecificityFluorodeoxyglucose F18Radiopharmaceuticals

Identifiers

PMID25919662
PMCPMC4412726
OpenAlexW2331941630

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.