Evidence map›Paper›PMID 15197504›Full record

Trial reportEuropean journal of nuclear medicine and molecular imaging2004

Positron emission tomography imaging of adrenal masses: (18)F-fluorodeoxyglucose and the 11beta-hydroxylase tracer (11)C-metomidate.

Georg Zettinig, Markus Mitterhauser, Wolfgang Wadsak, Alexander Becherer, Christian Pirich, Heinrich Vierhapper, Bruno Niederle, Robert Dudczak, Kurt Kletter

Abstract readClinical TrialComparative StudyControlled Clinical Trial
PubMed Publisher
In one paragraph

Trial report in European journal of nuclear medicine and molecular imaging, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 2 pooled it
3.5field-weighted citation impact, top 7% 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

27 citing papers in PubMed, 2 syntheses or guidelines pooled it, 98 citations in OpenAlex.

  1. Endocrine · 2020
    Pooled it
  2. Pooled it
  3. Trial
  4. [18F]FETO for adrenocortical PET imaging: a pilot study in healthy volunteers.European journal of nuclear medicine and molecular imaging · 2006
    Trial
  5. Review
  6. Review
  7. ElevatedQuantitative imaging in medicine and surgery · 2022
    Article
  8. Review
  9. Review
  10. Progress in the Management of Primary Aldosteronism.American journal of hypertension · 2018
    Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. Molecular imaging of adrenal neoplasms.Journal of surgical oncology · 2012
    Review
  16. Review
  17. Article
  18. Review
  19. Review
  20. 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

9 authors at 1 institution in 1 country.

Georg ZettinigDepartment of Nuclear Medicine, University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria, georg.zettinig@meduniwien.ac.at
Markus Mitterhauser
Wolfgang Wadsak
Alexander Becherer
Christian Pirich
Heinrich Vierhapper
Bruno Niederle
Robert Dudczak
Kurt Kletter
University of Vienna · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purpose(11)C-metomidate (MTO), a marker of 11beta-hydroxylase, has been suggested as a novel positron emission tomography (PET) tracer for adrenocortical imaging. Up to now, experience with this very new tracer is limited. The aims of this study were (1) to evaluate this novel tracer, (2) to point out possible advantages in comparison with( 18)F-fluorodeoxyglucose (FDG) and (3) to investigate in vivo the expression of 11beta-hydroxylase in patients with primary aldosteronism.

methodsSixteen patients with adrenal masses were investigated using both MTO and FDG PET imaging. All patients except one were operated on. Five patients had non-functioning adrenal masses, while 11 had functioning tumours(Cushing's syndrome, n=4; Conn's syndrome, n=5; phaeochromocytoma, n=2). Thirteen patients had benign disease, whereas in three cases the adrenal mass was malignant (adrenocortical cancer, n=1; malignant phaeochromocytoma, n=1; adrenal metastasis of renal cancer, n=1).

resultsMTO imaging clearly distinguished cortical from non-cortical adrenal masses (median standardised uptake values of 18.6 and 1.9, respectively, p<0.01). MTO uptake was slightly lower in patients with Cushing's syndrome than in those with Conn's syndrome, but the difference did not reach statistical significance. The expression of 11beta-hydroxylase was not suppressed in the contralateral gland of patients with Conn's syndrome, whereas in Cushing's syndrome this was clearly the case. The single patient with adrenocortical carcinoma had MTO uptake in the lower range.

conclusionMTO could not definitely distinguish between benign and malignant disease. FDG PET, however, identified clearly all three study patients with malignant adrenal lesions. We conclude: (1) MTO is an excellent imaging tool to distinguish adrenocortical and non-cortical lesions; (2) the in vivo expression of 11beta-hydroxylase is lower in Cushing's syndrome than in Conn's syndrome, and there is no suppression of the contralateral gland in primary aldosteronism; (3) for the purpose of discriminating between benign and malignant lesions, FDG is the tracer of choice.

Indexed as

Fluorodeoxyglucose F18AdenomaAdrenal Gland NeoplasmsAdultAgedCarbon RadioisotopesEtomidateFemaleHumansMaleMiddle AgedPositron-Emission TomographyRadiopharmaceuticalsReproducibility of ResultsSensitivity and SpecificitySteroid 11-beta-HydroxylaseCarbon RadioisotopesEtomidateFluorodeoxyglucose F18metomidateRadiopharmaceuticalsSteroid 11-beta-Hydroxylase

Identifiers

PMID15197504
OpenAlexW2463372168

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.