Evidence map›Paper›PMID 26475495›Full record

ArticleEndocrine2016

Quantitative analyses of T2-weighted MRI as a potential marker for response to somatostatin analogs in newly diagnosed acromegaly.

Ansgar Heck, Kyrre E Emblem, Olivera Casar-Borota, Jens Bollerslev, Geir Ringstad

Abstract read
PubMed Publisher
In one paragraph

Article in Endocrine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 1 pooled it
5.4field-weighted citation impact, top 4% 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

59 citing papers in PubMed, 1 synthesis or guideline pooled it, 114 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Approach to the patient: precision medicine-guided evaluation and treatment of acromegaly.The Journal of clinical endocrinology and metabolism · 2026
    Review
  4. Article
  5. Review
  6. Acromegaly diagnosis.The Journal of clinical endocrinology and metabolism · 2026
    Review
  7. Pituitary adenoma imaging as a determinant of acromegaly diagnosis and outcomes.The Journal of clinical endocrinology and metabolism · 2026
    Review
  8. Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Acromegaly: diagnostic challenges and individualized treatment.Expert review of endocrinology & metabolism · 2025
    Review
  19. Review
  20. Personalized Medicine in Acromegaly: The ACROFAST Study.The Journal of clinical endocrinology and metabolism · 2024
    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

5 authors at 3 institutions in 2 countries.

Ansgar HeckSection of Specialized Endocrinology, Department of Endocrinology, Oslo University Hospital, Rikshospitalet, P.b 4950, Nydalen, 0424, Oslo, Norway. ansgar.heck@medisin.uio.no.
Kyrre E EmblemThe Intervention Centre, Oslo University Hospital, Rikshospitalet, Oslo, Norway.
Olivera Casar-BorotaDepartment of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden.
Jens BollerslevSection of Specialized Endocrinology, Department of Endocrinology, Oslo University Hospital, Rikshospitalet, P.b 4950, Nydalen, 0424, Oslo, Norway.
Geir RingstadDepartment of Radiology and Nuclear Medicine, Oslo University Hospital, Rikshospitalet, Oslo, Norway.
Oslo University Hospital · NOUniversity of Oslo · NOUppsala University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In growth hormone (GH)-producing adenomas, T2-weighted MRI signal intensity is a marker for granulation pattern and response to somatostatin analogs (SSA). Prediction of treatment response is necessary for individualized treatment, and T2 intensity assessment might improve preoperative classification of somatotropinomas. The objectives of this study are (I) to explore the feasibility of quantitative T2-weighted MRI histogram analyses in newly diagnosed somatotroph adenomas and their relation to clinical and histological parameters and (II) to compare the quantitative method to conventional, visual assessment of T2 intensity. The study was a retrospective cohort study of 58 newly diagnosed patients. In 34 of these, response to primary SSA treatment after median 6 months was evaluated. Parameters from the T2 histogram analyses (T2 intensity ratio and T2 homogeneity ratio) were correlated to visually assessed T2 intensity (hypo-, iso-, hyperintense), baseline characteristics, response to SSA treatment, and histological granulation pattern (anti-Cam5.2). T2 intensity ratio was lowest in the hypointense tumors and highest in the hyperintense tumors (0.66 ± 0.10 vs. 1.07 ± 0.11; p < 0.001). T2 intensity at baseline correlated with reduction in GH (r = -0.67; p < 0.001) and IGF-1 (r = -0.36; p = 0.037) after primary SSA treatment (n = 34). The T2 homogeneity ratio correlated with adenoma size reduction (r = -0.45; p = 0.008). Sparsely granulated adenomas had a higher T2 intensity than densely or intermediately granulated adenomas. T2 histogram analyses are an applicable tool to assess T2 intensity in somatotroph adenomas. Quantitatively assessed T2 intensity ratio in GH-producing adenomas correlates with conventional assessment of T2 intensity, baseline characteristics, response to SSA treatment, and histological granulation pattern.

Indexed as

AcromegalyAdenomaAdolescentAdultAgedFeasibility StudiesFemaleGrowth Hormone-Secreting Pituitary AdenomaHumansMagnetic Resonance ImagingMaleMiddle AgedRetrospective StudiesSomatostatinYoung AdultSomatostatinAcromegalyGranulationMRISomatostatin analogT2

Identifiers

PMID26475495
OpenAlexW1905322309

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.