Evidence map›Paper›PMID 29500480›Full record

ArticleEuropean journal of nuclear medicine and molecular imaging2018

Feasibility of state of the art PET/CT systems performance harmonisation.

Andres Kaalep, Terez Sera, Sjoerd Rijnsdorp, Maqsood Yaqub, Anne Talsma, Martin A Lodge, Ronald Boellaard

Abstract read
In one paragraph

Article in European journal of nuclear medicine and molecular imaging, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 94 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
94citing papers in PubMed, 1 pooled it
–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

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

94 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Guideline
  2. Repeatability of QuantitativeJournal of nuclear medicine : official publication, Society of Nuclear Medicine · 2020
    Trial
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  4. Physiological uptake patterns of gastric lymph node stations onQuantitative imaging in medicine and surgery · 2026
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  6. Exploring the feasibility of a 40-minute uptake time for long axial field of view [European journal of nuclear medicine and molecular imaging · 2026
    Article
  7. JACC. Advances · 2026
    Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Standardization of PET/CT Performance Requirements for Whole-Body Quantitative Imaging: An International Proposal.Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2025
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Pharmacokinetic analysis and simplified uptake measures for tumour lesion [European journal of nuclear medicine and molecular imaging · 2025
    Article
  20. Article

34 more citing papers are in PubMed but not listed here.

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

7 authors.

Andres KaalepDepartment of Medical Technology, North Estonia Medical Centre Foundation, J. Sutiste Str 19, 13419, Tallinn, Estonia. kaalep@gmail.com.ORCID 0000-0002-5593-8886
Terez SeraDepartment of Nuclear Medicine, University of Szeged, Szeged, Hungary.
Sjoerd RijnsdorpDepartment of Medical Physics, Catharina Hospital, Eindhoven, The Netherlands.
Maqsood YaqubDepartment of Radiology and Nuclear Medicine, VU University Medical Center, Amsterdam, The Netherlands.
Anne TalsmaDepartment of Radiology, Martini Hospital, Groningen, Netherlands.
Martin A LodgeRussell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University, Baltimore, MD, 21287, USA.
Ronald BoellaardOn behalf of EANM Research Limited (EARL), Vienna, Austria. r.boellaard@umcg.nl.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe objective of this study was to explore the feasibility of harmonising performance for PET/CT systems equipped with time-of-flight (ToF) and resolution modelling/point spread function (PSF) technologies. A second aim was producing a working prototype of new harmonising criteria with higher contrast recoveries than current EARL standards using various SUV metrics.

methodsFour PET/CT systems with both ToF and PSF capabilities from three major vendors were used to acquire and reconstruct images of the NEMA NU2-2007 body phantom filled conforming EANM EARL guidelines. A total of 15 reconstruction parameter sets of varying pixel size, post filtering and reconstruction type, with three different acquisition durations were used to compare the quantitative performance of the systems. A target range for recovery curves was established such that it would accommodate the highest matching recoveries from all investigated systems. These updated criteria were validated on 18 additional scanners from 16 sites in order to demonstrate the scanners' ability to meet the new target range.

resultsEach of the four systems was found to be capable of producing harmonising reconstructions with similar recovery curves. The five reconstruction parameter sets producing harmonising results significantly increased SUVmean (25%) and SUVmax (26%) contrast recoveries compared with current EARL specifications. Additional prospective validation performed on 18 scanners from 16 EARL accredited sites demonstrated the feasibility of updated harmonising specifications. SUVpeak was found to significantly reduce the variability in quantitative results while producing lower recoveries in smaller (≤17 mm diameter) sphere sizes.

conclusionsHarmonising PET/CT systems with ToF and PSF technologies from different vendors was found to be feasible. The harmonisation of such systems would require an update to the current multicentre accreditation program EARL in order to accommodate higher recoveries. SUVpeak should be further investigated as a noise resistant alternative quantitative metric to SUVmax.

Indexed as

Phantoms, ImagingAccreditationHumansPositron-Emission TomographyPositron Emission Tomography Computed TomographyProspective StudiesEARL accreditationHarmonisationPerformancePET/CTQuantification

Identifiers

PMID29500480
PMCPMC5993859

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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.