Evidence map›Paper›PMID 33912619›Full record

ArticleOrthopaedic journal of sports medicine2021

Multimodal Ultrasound Versus MRI for the Diagnosis and Monitoring of Achilles Tendinopathy: A Prospective Longitudinal Study.

Matthias Gatz, Daniela Bode, Marcel Betsch, Valentin Quack, Markus Tingart, Christiane Kuhl, Simone Schrading, Timm Dirrichs

Open access · goldAbstract read
In one paragraph

Article in Orthopaedic journal of sports medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
3.4field-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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Effects of an exercise program on calf muscle characteristics in patients with Achilles tendinopathy.Physical therapy in sport : official journal of the Association of Chartered Physiotherapists in Sports Medicine · 2025
    Observational
  4. Article
  5. Article
  6. Achilles tendinopathy.Nature reviews. Disease primers · 2025
    Review
  7. Observational
  8. Article
  9. Review
  10. Article
  11. MSK Ultrasound - An IJSPT Perspective.International journal of sports physical therapy · 2023
    Article
  12. Article
  13. Article
  14. 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

8 authors at 3 institutions in 2 countries.

Matthias GatzDepartment of Orthopedics, University Hospital RWTH Aachen, Aachen, Germany.
Daniela BodeDepartment of Orthopedics, University Hospital RWTH Aachen, Aachen, Germany.
Marcel BetschUniversity of Toronto Orthopaedic Sports Medicine Program (UTOSM), Women's College Hospital, Toronto, Ontario, Canada.
Valentin QuackDepartment for Trauma and Reconstructive Surgery, University Hospital Aachen, Aachen, Germany.
Markus TingartDepartment of Orthopedics, University Hospital RWTH Aachen, Aachen, Germany.
Christiane KuhlDepartment of Diagnostic and Interventional Radiology, University Hospital RWTH Aachen, Aachen, Germany.
Simone SchradingDepartment of Diagnostic and Interventional Radiology, University Hospital RWTH Aachen, Aachen, Germany.
Timm DirrichsDepartment of Diagnostic and Interventional Radiology, University Hospital RWTH Aachen, Aachen, Germany.
RWTH Aachen University · DEUniversitätsklinikum Aachen · DEWomen's College Hospital · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe diagnosis and monitoring of Achilles tendinopathy with imaging are challenging. There is a lack of studies comparing the diagnostic accuracy of magnetic resonance imaging (MRI), brightness mode ultrasound (B-mode), and power Doppler ultrasound with recent technologies such as ultrasound tissue characterization (UTC) and shear wave elastography (SWE). PURPOSE: To assess whether SWE and UTC, which offer quantitative values, show a superior diagnostic accuracy and capacity to detect structural improvement in Achilles tendinopathy compared with MRI, B-mode, or power Doppler. STUDY

designCohort study (diagnosis); Level of evidence, 2.

methodsPatients with insertional (n = 28) and midportion (n = 38) Achilles tendinopathy were evaluated at baseline and 6-month follow-up using MRI, B-mode, power Doppler, SWE, and UTC. Asymptomatic controls (n = 37) were evaluated at

resultsFor diagnosing insertional Achilles tendinopathy, semiquantitative MRI and power Doppler were most favorable (diagnostic accuracy, 95%), while the cross-sectional area of MRI revealed 89% accuracy in the ROC analyses (area under the curve [AUC], 0.911;

conclusionThere was no statistically significant difference in favor of one imaging modality over the others, but MRI revealed the highest overall diagnostic accuracy for the diagnosis of both insertional and midportion Achilles tendinopathy.

Indexed as

Achilles tendinopathyAchilles tendondiagnostic ultrasoundimagingmagnetic resonanceshear wave elastographyultrasound tissue characterization

Identifiers

PMID33912619
PMCPMC8047827
OpenAlexW3154960391

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.