Evidence map›Paper›PMID 33693967›Full record

ReviewEuropean journal of nuclear medicine and molecular imaging2021

Kinetic modeling and parameter estimation of TSPO PET imaging in the human brain.

Catriona Wimberley, Sonia Lavisse, Ansel Hillmer, Rainer Hinz, Federico Turkheimer, Paolo Zanotti-Fregonara

Open access · hybridAbstract readReview
In one paragraph

Review in European journal of nuclear medicine and molecular imaging, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 6% 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

33 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. TSPO Radioligands for Neuroinflammation: An Overview.Molecules (Basel, Switzerland) · 2024
    Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. [Neurology · 2023
    Article
  20. [European journal of nuclear medicine and molecular imaging · 2023
    Article
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

6 authors at 6 institutions in 3 countries.

Catriona WimberleyEdinburgh Imaging, University of Edinburgh, Edinburgh, EH16 4SB, UK. Catriona.wimberley@ed.ac.uk.ORCID http://orcid.org/0000-0002-2709-6837
Sonia LavisseCEA, CNRS, MIRCen, Laboratoire des Maladies Neurodégénératives, Université Paris-Saclay, 92265, Fontenay-aux-Roses, France.
Ansel HillmerDepartments of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT, USA.
Rainer HinzWolfson Molecular Imaging Centre, University of Manchester, Manchester, M20 3LJ, UK.
Federico TurkheimerDepartment of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, Centre for Neuroimaging Sciences, King's College London, De Crespigny Park, London, SE5 8AF, UK.
Paolo Zanotti-FregonaraMolecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA.
Centre National de la Recherche Scientifique · FRNational Institutes of Health · USUniversity of Edinburgh · GBUniversity of Manchester · GBWellcome Centre for Human Neuroimaging · GBYale Cancer Center · US

Funding

Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9M
Clinical Evaluation of PET RadiotracersZIAMH002852 · NIMH · NATIONAL INSTITUTE OF MENTAL HEALTH · PI INNIS, ROBERT · 2009 to 2025
$48.6M
Intramural NIH HHS ZIA MH002852NCATS NIH HHS UL1 TR001863
6 · The paper itself

Abstract

purposeTranslocator protein 18-kDa (TSPO) imaging with positron emission tomography (PET) is widely used in research studies of brain diseases that have a neuro-immune component. Quantification of TSPO PET images, however, is associated with several challenges, such as the lack of a reference region, a genetic polymorphism affecting the affinity of the ligand for TSPO, and a strong TSPO signal in the endothelium of the brain vessels. These challenges have created an ongoing debate in the field about which type of quantification is most useful and whether there is an appropriate simplified model.

methodsThis review focuses on the quantification of TSPO radioligands in the human brain. The various methods of quantification are summarized, including the gold standard of compartmental modeling with metabolite-corrected input function as well as various alternative models and non-invasive approaches. Their advantages and drawbacks are critically assessed. RESULTS AND

conclusionsResearchers employing quantification methods for TSPO should understand the advantages and limitations associated with each method. Suggestions are given to help researchers choose between these viable alternative methods.

Indexed as

RadiopharmaceuticalsReceptors, GABABrainHumansPositron-Emission TomographyTomography, X-Ray ComputedRadiopharmaceuticalsReceptors, GABATSPO protein, humanInflammationKinetic modelingPositron emission tomography (PET)Translocator protein 18 kDa (TSPO)

Identifiers

PMID33693967
PMCPMC8712306
OpenAlexW3135575967

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.