Evidence map›Paper›PMID 38621551›Full record

ArticleMagnetic resonance imaging2024

Clinical evaluation of isotropic MAVRIC-SL for symptomatic hip arthroplasties at 3 T MRI.

Daehyun Yoon, Zoe Doyle, Philip Lee, Brian Hargreaves, Kathryn Stevens

Open access · greenAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Magnetic resonance imaging, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.4field-weighted citation impact, top 47% 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

1 citing paper in PubMed, 2 citations in OpenAlex.

  1. Review
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 1 institution in 1 country.

Daehyun YoonDepartment of Radiology, Stanford University, Lucas MRS Center, 1201 Welch Road, Stanford, CA 94305, USA. Electronic address: daehyun.yoon@ucsf.edu.
Zoe DoyleDepartment of Radiology, Stanford University, Lucas MRS Center, 1201 Welch Road, Stanford, CA 94305, USA; Department of Radiology, VA Palo Alto Health Care System, 3801 Miranda Ave, Palo Alto, CA 94304, USA. Electronic address: zdoyle@stanford.edu.
Philip LeeDepartment of Electrical Engineering, Stanford University, 350 Jane Stanford Way, Stanford, CA 94305, USA. Electronic address: pkl.lee@stanford.edu.
Brian HargreavesDepartment of Radiology, Stanford University, Lucas MRS Center, 1201 Welch Road, Stanford, CA 94305, USA; Department of Electrical Engineering, Stanford University, 350 Jane Stanford Way, Stanford, CA 94305, USA; Department of Bioengineering, Stanford University, 443 Via Ortega, Rm 119, Stanford, CA 94305, USA. Electronic address: bah@stanford.edu.
Kathryn StevensDepartment of Radiology, Stanford University, Lucas MRS Center, 1201 Welch Road, Stanford, CA 94305, USA; Department of Orthopaedic Surgery, Stanford University, 430 Broadway Street, MC: 6342, Pavilion C, 4th Floor, Redwood City, CA 94063, USA. Electronic address: kate.stevens@stanford.edu.
Stanford University · US

Funding

Novel PET/MR Imaging Approach for Persistent Postsurgical Pain Following Joint ReplacementR01AR077706 · NIAMS · UNIVERSITY OF WISCONSIN-MADISON · PI SANDIP BISWAL · 2021 to 2026
$2.6M
NIAMS NIH HHS R01 AR077706
6 · The paper itself

Abstract

background3D multi-spectral imaging (MSI) of metal implants necessitates relatively long scan times.

objectiveWe implemented a fast isotropic 3D MSI technique at 3 T and compared its image quality and clinical utility to non-isotropic MSI in the evaluation of hip implants.

methodsTwo musculoskeletal radiologists scored images from coronal proton density-weighted conventional MAVRIC-SL and an isotropic MAVRIC-SL sequence accelerated with robust-component-analysis on a 3-point scale (3: diagnostic, 2: moderately diagnostic, 1: non-diagnostic) for overall image quality, metal artifact, and visualization around femoral and acetabular components. Grades were compared using a signed Wilcoxon test. Images were evaluated for effusion, synovitis, osteolysis, loosening, pseudotumor, fracture, and gluteal tendon abnormalities. Reformatted axial and sagittal images for both sequences were subsequently generated and compared for image quality with the Wilcoxon test. Whether these reformats increased diagnostic confidence or revealed additional pathology, including findings unrelated to arthroplasty that may contribute to hip pain, was also compared using the McNemar test. Inter-rater agreement was measured by Cohen's kappa.

results39 symptomatic patients with a total of 59 hip prostheses were imaged (mean age, 70 years ±9, 14 males, 25 females). Comparison scores between coronal images showed no significant difference in image quality, metal artifact, or visualization of the femur and acetabulum. Except for loosening, reviewers identified more positive cases of pathology on the original coronally-acquired isotropic sequence. In comparison of reformatted axial and sagittal images, the isotropic sequence scored significantly (p < 0.01) higher for overall image quality (3.0 vs 2.0) and produced significantly (p < 0.01) more cases of increased diagnostic confidence (42.4% vs 7.6%) or additional diagnoses (50.8% vs 22.9%). Inter-rater agreement was substantial (k = 0.798) for image quality. Mean scan times were 4.2 mins (isotropic) and 7.1 mins (non-isotropic).

conclusionCompared to the non-isotropic sequence, isotropic 3D MSI was acquired in less time while maintaining diagnostically acceptable image quality. It identified more pathology, including postoperative complications and potential pain-generating pathology unrelated to arthroplasty. This fast isotropic 3D MSI sequence demonstrates promise for improving diagnostic evaluation of symptomatic hip prostheses at 3 T while simultaneously reducing scan time.

Indexed as

Arthroplasty, Replacement, HipHip ProsthesisImaging, Three-DimensionalMagnetic Resonance ImagingAdultAgedAged, 80 and overArtifactsFemaleHip JointHumansMaleMiddle AgedReproducibility of Results3 T MRIFast isotropic imagingHip arthroplastyMetal artifact reductionPostoperative complications

Identifiers

PMID38621551
PMCPMC11186338
OpenAlexW4394808300

What OpenQuestion holds

Textmetadata
LicenceTDM
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.