Evidence map›Paper›PMID 32803375›Full record

ArticleSkeletal radiology2021

Dual-energy CT collagen density mapping of wrist ligaments reveals tissue remodeling in CPPD patients: first results from a clinical cohort.

Katharina Ziegeler, Sophia-Theresa Richter, Sandra Hermann, Kay Geert A Hermann, Bernd Hamm, Torsten Diekhoff

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in Skeletal radiology, 2021. 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 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.4field-weighted citation impact, top 41% 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

9 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. Review
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  5. Review
  6. Computed tomography-current status and future directions for arthritis imaging.Therapeutic advances in musculoskeletal disease · 2024
    Review
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  8. Article
  9. Imaging of Joints and Bones in Autoinflammation.Journal of clinical medicine · 2020
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Katharina ZiegelerDepartment of Radiology, Charité-Universitätsmedizin, Charitéplatz 1, 10117, Berlin, Germany. katharina.ziegeler@charite.de.ORCID http://orcid.org/0000-0002-9763-2420
Sophia-Theresa RichterDepartment of Radiology, Charité-Universitätsmedizin, Charitéplatz 1, 10117, Berlin, Germany.
Sandra HermannDepartment of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin, Charitéplatz 1, Berlin, 10117, Germany.
Kay Geert A HermannDepartment of Radiology, Charité-Universitätsmedizin, Charitéplatz 1, 10117, Berlin, Germany.
Bernd HammDepartment of Radiology, Charité-Universitätsmedizin, Charitéplatz 1, 10117, Berlin, Germany.
Torsten DiekhoffDepartment of Radiology, Charité-Universitätsmedizin, Charitéplatz 1, 10117, Berlin, Germany.
Charité - Universitätsmedizin Berlin · DE

Funding

Deutsche Forschungsgemeinschaft 372486779
6 · The paper itself

Abstract

objectivesTo evaluate differences in collagen density as detected by dual-energy computed tomography (DECT) of wrist ligaments between patients with calcium pyrophosphate-dihydrate deposition disease (CPPD) and a control group in order to gain insight into changes of the extracellular matrix in response to crystal deposition. MATERIALS AND

methodsThis retrospective study included 28 patients (18 with CPPD, 10 controls) who underwent DECT of the wrist. Collagen density maps were reconstructed from the DECT datasets and used to measure densities in regions of interest (ROIs) placed in the scapholunate (SL) ligament (dorsal, palmar, proximal), lunotriquetral (LT) ligament, and extensor carpi radialis (ECR) tendon, (n = 260 measurements). The presence of calcifications on standard CT images in these regions was assessed by a blinded reader. Densities were compared with nonparametric tests, and linear regression analysis was performed to investigate the impact of age, sex, and CT- detected calcium deposition on collagen density.

resultsCollagen density in the SL ligament was significantly higher in CPPD patients than in controls (overall mean: 265.4 ± 32.1 HU vs. 196.3 ± 33.8 HU; p < 0.001). In the ECR tendon, collagen densities did not differ significantly (p = 0.672): 161.3 ± 20.1 HU in CPPD vs. 163.6 ± 12.0 HU in controls. Regression analysis showed that diagnosis, but not age or calcification, had a significant impact on collagen density.

conclusionCollagen density of the SL ligament is significantly higher in CPPD patients than in control patients. Further research is needed to understand these changes in the extracellular matrix of ligaments in CPPD.

Indexed as

ChondrocalcinosisWristCollagenHumansRetrospective StudiesTomography, X-Ray ComputedCollagenChondrocalcinosisCollagenDual-energy computed tomographyLigamentsWrist

Identifiers

PMID32803375
PMCPMC8189950
OpenAlexW3049000487

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Registered trials

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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.