Evidence map›Paper›PMID 30617960›Full record

ArticleEuropean journal of nuclear medicine and molecular imaging2019

Digital vs. analog PET/CT: intra-subject comparison of the SUVmax in target lesions and reference regions.

Francisco Fuentes-Ocampo, Diego Alfonso López-Mora, Albert Flotats, Gabriela Paillahueque, Valle Camacho, Joan Duch, Alejandro Fernández, Anna Domènech, Montserrat Estorch, Ignasi Carrió

Erratum issuedAbstract readComparative Study
PubMed Publisher
In one paragraph

Article in European journal of nuclear medicine and molecular imaging, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing 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

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

34 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Long-axial field-of-view PET/CT improves radiomics feature reliability.European journal of nuclear medicine and molecular imaging · 2025
    Article
  6. Review
  7. Challenging the significance of SUV-based parameters in a large-scale retrospective study on lung lesions.Cancer imaging : the official publication of the International Cancer Imaging Society · 2024
    Article
  8. Article
  9. Article
  10. Article
  11. Comparison of Digital versus AnalogDiagnostics (Basel, Switzerland) · 2023
    Article
  12. Article
  13. Review
  14. Article
  15. Enhancement ofDiagnostics (Basel, Switzerland) · 2022
    Article
  16. Influences on PET Quantification and Interpretation.Diagnostics (Basel, Switzerland) · 2022
    Review
  17. Article
  18. Moving the goalposts while scoring-the dilemma posed by new PET technologies.European journal of nuclear medicine and molecular imaging · 2021
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors.

Francisco Fuentes-OcampoNuclear Medicine Department, Hospital Sant Pau, Autonomous University of Barcelona, Sant Antoni M. Claret, 167, 08025, Barcelona, Spain. franciscofuentesocampo@gmail.com.ORCID http://orcid.org/0000-0002-5859-5196
Diego Alfonso López-MoraNuclear Medicine Department, Hospital Sant Pau, Autonomous University of Barcelona, Sant Antoni M. Claret, 167, 08025, Barcelona, Spain.
Albert FlotatsNuclear Medicine Department, Hospital Sant Pau, Autonomous University of Barcelona, Sant Antoni M. Claret, 167, 08025, Barcelona, Spain.
Gabriela PaillahuequeNuclear Medicine Department, Hospital Clínico, Universidad de Chile, Santiago, Chile.
Valle CamachoNuclear Medicine Department, Hospital Sant Pau, Autonomous University of Barcelona, Sant Antoni M. Claret, 167, 08025, Barcelona, Spain.
Joan DuchNuclear Medicine Department, Hospital Sant Pau, Autonomous University of Barcelona, Sant Antoni M. Claret, 167, 08025, Barcelona, Spain.
Alejandro FernándezNuclear Medicine Department, Hospital Sant Pau, Autonomous University of Barcelona, Sant Antoni M. Claret, 167, 08025, Barcelona, Spain.
Anna DomènechNuclear Medicine Department, Hospital Sant Pau, Autonomous University of Barcelona, Sant Antoni M. Claret, 167, 08025, Barcelona, Spain.
Montserrat EstorchNuclear Medicine Department, Hospital Sant Pau, Autonomous University of Barcelona, Sant Antoni M. Claret, 167, 08025, Barcelona, Spain.
Ignasi CarrióNuclear Medicine Department, Hospital Sant Pau, Autonomous University of Barcelona, Sant Antoni M. Claret, 167, 08025, Barcelona, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe purpose of this study was to assess whether digital photon counting technology in digital PET/CT influences the quantification of SUVmax in target lesions and regions of reference compared to analog PET/CT before an interchangeable use of either system in follow up studies.

methodsFrom January to June of 2018, 100 oncological patients underwent successive PET/CT imaging with digital and analog systems in the same day. Fifty-eight patients underwent analog imaging first and digital imaging thereafter, and 42 patients the other way round. SUVmax was measured in reference regions (liver and mediastinal blood pool) and in the most metabolically active target lesion in each patient. According to the sequence order of PET/CT acquisition, two groups of SUVmax values were obtained, i.e. group 1: analog PET/CT performed first; group 2: digital PET/CT performed first.

resultsMean SUVmax in the total sample (regardless of the order of PET/CT acquisition) in the target lesions with the analog PET/CT was 8.14 ± 6.39 and the digital 9.97 ± 6.14 (P = 0.000). Total mean SUVmax in the liver with the analog was 4.39 ± 2.59 and the digital 4.46 ± 3.18 (P = 0.477). Total mean SUVmax in the mediastinal blood pool with the analog was 2.30 ± 0.67 and the digital 2.54 ± 0.74 (P = 0.000). Group 1: mean SUVmax in the target lesions with the analog system was 6.64 ± 4.71 and the digital 9.48 ± 5.60 (P = 0.000). Mean liver SUVmax with the analog was 4.70 ± 2.90 and the digital 4.80 ± 3.72 (P = 0.088). Mediastinal blood pool SUVmax with the analog was 2.33 ± 0.66 and the digital 2.45 ± 0.73 (P = 0.041). Group 2: mean SUVmax in target lesions with the digital system was 10.63 ± 6.88 and the analog 10.16 ± 7.76 (P = 0.046). Mean liver SUVmax with the digital was 3.99 ± 2.20 and the analog 3.96 ± 2.04 (P = 0.218). Mediastinal blood pool SUVmax with the digital was 2.66 ± 0.75 and the analog 2.27 ± 0.68 (P = 0.000). No significant differences between both time delays were found.

conclusionsImproved photon counting technology in the digital PET/CT, and the effect of delayed increased uptake and retention significantly increases SUVmax values. This has to be taken into account before interchangeable use of either system in follow up studies.

Indexed as

AgedData Interpretation, StatisticalFemaleHumansImage Processing, Computer-AssistedLiverMaleMediastinumMiddle AgedNeoplasmsPositron Emission Tomography Computed TomographyRadiopharmaceuticalsReference StandardsReproducibility of ResultsRadiopharmaceuticalsAnalog PET/CTDigital PET/CTIntra-subject comparisonSUVmax

Identifiers

What OpenQuestion holds

Textmetadata
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.