Evidence map›Paper›PMID 38476638›Full record

ArticleAlzheimer's & dementia (Amsterdam, Netherlands)

Inter-scanner Aβ-PET harmonization using barrel phantom spatial resolution matching.

Gihan P Ruwanpathirana, Robert C Williams, Colin L Masters, Christopher C Rowe, Leigh A Johnston, Catherine E Davey

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Article in Alzheimer's & dementia (Amsterdam, Netherlands). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
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

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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

4 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Gihan P RuwanpathiranaDepartment of Biomedical Engineering The University of Melbourne Melbourne VIC Australia.
Robert C WilliamsMelbourne Brain Centre Imaging Unit The University of Melbourne Melbourne VIC Australia.
Colin L MastersFlorey Institute of Neurosciences and Mental Health The University of Melbourne Melbourne VIC Australia.
Christopher C RoweFlorey Institute of Neurosciences and Mental Health The University of Melbourne Melbourne VIC Australia.
Leigh A JohnstonDepartment of Biomedical Engineering The University of Melbourne Melbourne VIC Australia.
Catherine E DaveyDepartment of Biomedical Engineering The University of Melbourne Melbourne VIC Australia.ORCID https://orcid.org/0000-0002-5672-7941

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe standardized uptake value ratio (SUVR) is used to measure amyloid beta-positron emission tomography (Aβ-PET) uptake in the brainDifferences in PET scanner technologies and image reconstruction techniques can lead to variability in PET images across scanners. This poses a challenge for Aβ-PET studies conducted in multiple centers. The aim of harmonization is to achieve consistent Aβ-PET measurements across different scanners. In this study, we propose an Aβ-PET harmonization method of matching spatial resolution, as measured via a barrel phantom, across PET scanners. Our approach was validated using paired subject data, for which patients were imaged on multiple scanners.

methodsIn this study, three different PET scanners were evaluated: the Siemens Biograph Vision 600, Siemens Biograph molecular computed tomography (mCT), and Philips Gemini TF64. A total of five, eight, and five subjects were each scanned twice with [

results

conclusionBased on data obtained from three sets of participants, each scanned on a pair of PET scanners, it has been verified that using reconstruction configurations that produce matched-barrel, phantom spatial resolutions results in maximally harmonized Aβ-PET quantitation between scanner pairs. This finding is encouraging for the use of PET scanners in multi-center trials or updates during longitudinal studies. Highlights:

Indexed as

amyloid betaPET scanner harmonizationPhilips TF64SIEMENS mCTSIEMENS Vision

Identifiers

PMID38476638
PMCPMC10927914

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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.