Evidence map›Paper›PMID 36710346›Full record

ArticleBMC musculoskeletal disorders2023

Comparison of 3D quantitative osteoarthritis imaging biomarkers from paired CT and MR images: data from the IMI-APPROACH study.

Alan Brett, Michael A Bowes, Philip G Conaghan

Registry-linked trialAbstract read
In one paragraph

Article in BMC musculoskeletal disorders, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03883568 (A 2-year Multicentre, EU, Exploratory Study Without Therapeutic Benefit in Patients With Knee Osteoarthritis to Describe, Validate, and Predict Phenotypes of Knee Osteoarthritis by Use of Clinical, Imaging, and Biochemical), which is not on this map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
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.

NCT03883568 completednot on this map

A 2-year Multicentre, EU, Exploratory Study Without Therapeutic Benefit in Patients With Knee Osteoarthritis to Describe, Validate, and Predict Phenotypes of Knee Osteoarthritis by Use of Clinical, Imaging, and Biochemical (Bio)Markers.

TypeobservationalSponsorF.P.J.G. LafeberRan2018 to 2021Enrolled297ConditionsKnee Osteoarthritis
3 · Its place in the literature

Who cites it

11 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Advances in cartilage imaging techniques.Nature reviews. Rheumatology · 2026
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. 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

3 authors.

Alan BrettImorphics, Worthington House, Towers Business Park, Wilmslow Road, Manchester, M20 2HJ, UK. Alan.Brett@stryker.com.
Michael A BowesImorphics, Worthington House, Towers Business Park, Wilmslow Road, Manchester, M20 2HJ, UK.
Philip G ConaghanLeeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds & NIHR Leeds Biomedical Research Centre, Leeds, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionMRI bone surface area and femoral bone shape (B-score) measures have been employed as quantitative endpoints in DMOAD clinical trials. Computerized Tomography (CT) imaging is more commonly used for 3D visualization of bony anatomy due to its high bone-soft tissue contrast. We aimed to compare CT and MRI assessments of 3D imaging biomarkers.

methodsWe used baseline and 24-month image data from the IMI-APPROACH 2-year prospective cohort study. Femur and tibia were automatically segmented using active appearance models, a machine-learning method, to measure 3D bone shape, area and 3D joint space width (3DJSW). Linear regression was used to test for correlation between measures. Limits of agreement and bias were tested using Bland-Altman analysis.

resultsCT-MR pairs of the same knee were available from 434 participants (78% female). B-scores from CT and MR were strongly correlated (CCC = 0.967) with minimal bias of 0.1 (SDD = 0.227). Area measures were also correlated but showed a consistent bias (MR smaller). 3DJSW showed different biases (MR larger) in both lateral and medial compartments. DISCUSSION: The strong correlation and small B-score bias suggests that B-score may be measured reliably using either modality. It is likely that the bone surface identified using MR and CT will be at slightly different positions within the bone/cartilage boundary. The negative bone area bias suggests the MR bone boundary is inside the CT boundary producing smaller areas for MR, consistent with the positive 3DJSW bias. The lateral-medial 3DJSW difference is possibly due to a difference in knee pose during acquisition (extended for CT, flexed for MR).

trial registrationNCT03883568.

Indexed as

Imaging, Three-DimensionalOsteoarthritis, KneeBiomarkersClinical Trials as TopicFemaleFemurHumansKnee JointMagnetic Resonance ImagingMaleProspective StudiesTibiaTomography, X-Ray ComputedBiomarkersBiomarkerB-scoreCTMachine learningMRIOsteoarthritis

Identifiers

PMID36710346
PMCPMC9885640

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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 Socratic graph.