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European Radiology
Erschienen in: European Radiology 2/2013

01.02.2013 | Musculoskeletal

SLAP tears: diagnosis using 3-T shoulder MR arthrography with the 3D isotropic turbo spin-echo space sequence versus conventional 2D sequences

verfasst von: Joon-Yong Jung, Won-Hee Jee, Michael Yong Park, So-Yeon Lee, Yang-Soo Kim

Erschienen in: European Radiology | Ausgabe 2/2013

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Abstract

Objectives

The aim of this study was to determine the accuracy and reliability of shoulder magnetic resonance (MR) arthrography with three-dimensional (3D) isotropic intermediate-weighted turbo spin-echo (TSE) sampling perfection with application-optimised contrasts using different flip angle evolution (SPACE) in the diagnosis of superior labrum anterior-to-posterior (SLAP) lesions compared with two-dimensional (2D) TSE at 3.0 T.

Methods

MR arthrograms, including 2D TSE and 3D TSE-SPACE, in 87 patients who underwent arthroscopy were retrospectively analysed by two reviewers for the presence and type of SLAP lesions. Sensitivity and specificity were compared using McNemar’s test, and inter-observer agreement was calculated using Cohen’s kappa. Receiver operating characteristic (ROC) curve analyses were performed.

Results

The mean sensitivity, specificity and accuracy were 90%, 85% and 86% for 2D TSE, and 81%, 86% and 85% for 3D TSE-SPACE respectively, with no statistically significant differences. Inter-observer agreements were substantial in 2D TSE (κ = 0.76) and 3D TSE-SPACE (κ = 0.68). The areas under the ROC curves were 0.92 for 2D TSE and 0.90 for 3D TSE-SPACE, which were not significantly different.

Conclusions

MR arthrography with 3D TSE-SPACE showed comparable accuracy and substantial inter-observer agreement for the diagnosis of SLAP lesions

Key Points

• MR arthrography is regarded as the definitive method of shoulder imaging
• Different MR sequences are evolving for SLAP lesions
• 3D TSE-SPACE demonstrated comparable overall accuracy to 2D TSE for SLAP lesions
• But more false-negative interpretations occurred using 3D TSE-SPACE
• Further technical improvement is necessary before 3D TSE-SPACE replaces 2D TSE sequences
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Metadaten
Titel
SLAP tears: diagnosis using 3-T shoulder MR arthrography with the 3D isotropic turbo spin-echo space sequence versus conventional 2D sequences
verfasst von
Joon-Yong Jung
Won-Hee Jee
Michael Yong Park
So-Yeon Lee
Yang-Soo Kim
Publikationsdatum
01.02.2013
Verlag
Springer-Verlag
Erschienen in
European Radiology / Ausgabe 2/2013
Print ISSN: 0938-7994
Elektronische ISSN: 1432-1084
DOI
https://doi.org/10.1007/s00330-012-2599-7

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