Evidence map›Paper›PMID 21210112›Full record

ArticleEuropean journal of nuclear medicine and molecular imaging2011

PET/CT in malignant melanoma: contrast-enhanced CT versus plain low-dose CT.

Thomas Pfluger, Henriette Ingrid Melzer, Vera Schneider, Christian La Fougere, Eva Coppenrath, Carola Berking, Peter Bartenstein, Mayo Weiss

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Article in European journal of nuclear medicine and molecular imaging, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 13% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 50 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Review
  5. Review
  6. The Role and Potential ofDiagnostics (Basel, Switzerland) · 2022
    Review
  7. Diagnostics (Basel, Switzerland) · 2021
    Article
  8. Review
  9. Article
  10. The value of FDG PET/CT for follow-up of patients with melanoma: a retrospective analysis.American journal of nuclear medicine and molecular imaging · 2017
    Article
  11. Article
  12. Article
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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 2 institutions in 1 country.

Thomas PflugerDepartment of Nuclear Medicine, LMU, Munich, Germany.
Henriette Ingrid Melzer
Vera Schneider
Christian La Fougere
Eva Coppenrath
Carola Berking
Peter Bartenstein
Mayo Weiss
LMU Klinikum · DELudwig-Maximilians-Universität München · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe aim of this study was to evaluate the diagnostic value of contrast-enhanced CT (CECT) versus non-enhanced low-dose CT (NECT) in the staging of advanced malignant melanoma with (18)F-fluordeoxyglucose (FDG) positron emission tomography (PET)/CT.

methodsIn total, 50 (18)F-FDG PET/CT examinations were performed in 50 patients with metastasized melanoma. For attenuation correction, whole-body NECT was performed followed by diagnostic CECT with contrast agent. For the whole-body PET, (18)F-FDG was applied. Criteria for evaluation were signs of vital tumour tissue (extent of lesions, contrast enhancement, maximum standardized uptake value >2.5). Findings suspicious for melanoma were considered lesions. NECT, CECT and (18)F-FDG PET were evaluated separately, followed by combined analysis of PET/NECT and PET/CECT. Findings were verified histologically and/or by follow-up (>6 months).

resultsOverall, 232 lesions were analysed, and 151 proved to be metastases. The sensitivity of NECT, CECT, PET, PET/NECT and PET/CECT was 62, 85, 90, 97 and 100%, and specificity was 52, 63, 88, 93 and 93%, respectively. Compared to CECT, NECT obtained additional false-negative results: lymph node (n = 19) and liver/spleen metastases (n = 9). Misinterpreted physiological structures mainly caused additional false-positive findings (n = 17). In combined analysis of PET/NECT, six false-positive [other tumours (n = 2), inflammatory lymph nodes (n = 2), inflammatory lung lesion (n = 1), blood vessel (n = 1)] and five false-negative findings [liver (n = 3), spleen (n = 1), lymph node metastases (n = 1)] remained. On PET/CECT, six false-positive [inflammatory lymph nodes (n = 3), other tumours (n = 2), inflammatory lung lesion (n = 1)] and no false-negative findings occurred. However, additional false findings on PET/NECT (6 of 232) did not change staging compared to PET/CECT.

conclusionOur results indicate that it is justified to perform PET/NECT instead of PET/CECT for melanoma staging.

Indexed as

Contrast MediaPositron-Emission TomographyRadiation DosageAdultAgedAged, 80 and overFemaleFluorodeoxyglucose F18HumansMaleMelanomaMiddle AgedNeoplasm MetastasisNeoplasm StagingRetrospective StudiesTomography, X-Ray ComputedContrast MediaFluorodeoxyglucose F18

Identifiers

PMID21210112
OpenAlexW2047703179

What OpenQuestion holds

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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.