Journal article
Metal artifact reduction MRI of total ankle arthroplasty implants
European radiology, Vol.28(5), pp.2216-2227
05/2018
DOI: 10.1007/s00330-017-5153-9
PMID: 29218618
Abstract
To assess high-bandwidth and compressed sensing-(CS)-SEMAC turbo spin echo (TSE) techniques for metal artifact reduction MRI of total ankle arthroplasty (TAA) implants.
Following institutional approval and consent, 40 subjects with TAA implants underwent 1.5-T MRI prospectively. Evaluations included bone-implant interfaces, anatomical structures, abnormal findings and differential diagnoses before and after MRI. AUCs of P-P plots were used to determine superiority. Statistical differences were evaluated with McNemar and chi-square tests. P-values ≤ 0.05 were considered significant.
CS-SEMAC TSE was superior to high-bandwidth TSE in showing the bone-implant interfaces (AUC=0.917), periprosthetic bone, tendons and joint capsule (AUC=0.337-0.766), bone marrow oedema (43 % difference, p=0.041), interface osteolysis (63 %, p=0.015), tendinopathy (62 %, p=0.062), periprosthetic fractures (60 %, p=0.250), synovitis (43 %, p=0.250), as well as reader confidence for bone marrow oedema (p=<0.001), fracture (p=0.001), interface osteolysis (p=0.003), synovitis (p=0.027) and tendinopathy (p=0.034). The number of differential diagnoses in symptomatic subjects after the MRI with CS-SEMAC decreased from 3 (1-4) to 1 (1-2) (p<0.001).
MRI of TAA implants with CS-SEMAC improves the diagnosis of interface osteolysis, periprosthetic bone marrow oedema, fractures and tendinopathy when compared to high-BW TSE, and has a positive effect on patient management.
• High-bandwidth TSE and compressed sensing SEMAC improve MRI of ankle arthroplasty implants. • Compressed sensing SEMAC improves bone-implant interfaces, periprosthetic bone, tendons and joint capsule visibility. • Compressed sensing SEMAC improves the diagnosis of osteolysis, tendinopathy, fractures and synovitis. • MRI decreases the number of clinical differential diagnoses of painful ankle arthroplasty implants.
Details
- Title: Subtitle
- Metal artifact reduction MRI of total ankle arthroplasty implants
- Creators
- Cesar de Cesar Netto - Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USALucas F Fonseca - Department of Orthopedic Surgery, MedStar Union Memorial Hospital, Baltimore, MD, USABenjamin Fritz - Faculty of Medicine, University of Zurich, Zurich, SwitzerlandSteven E Stern - Bond Business School, Bond University, Gold Coast, QLD, AustraliaEsther Raithel - Siemens Healthcare GmbH, Erlangen, GermanyMathias Nittka - Siemens Healthcare GmbH, Erlangen, GermanyLew C Schon - Department of Orthopedic Surgery, MedStar Union Memorial Hospital, Baltimore, MD, USAJan Fritz - Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA. jfritz9@jhmi.edu
- Resource Type
- Journal article
- Publication Details
- European radiology, Vol.28(5), pp.2216-2227
- DOI
- 10.1007/s00330-017-5153-9
- PMID
- 29218618
- NLM abbreviation
- Eur Radiol
- ISSN
- 0938-7994
- eISSN
- 1432-1084
- Publisher
- Germany
- Grant note
- n/a / Siemens USA
- Language
- English
- Date published
- 05/2018
- Academic Unit
- Orthopedics and Rehabilitation
- Record Identifier
- 9984040470102771
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