MR arthrography of the shoulder: comparison with conventional MR imaging.

Flannigan, B D; Kursunoglu-Brahme, S; Snyder, Stephen J.; Karzeł, Ronald P.; Pizzo, Wilson Del; Resnick, Donald

doi:10.2214/ajr.155.4.2119117

Cited by 255 publications

(117 citation statements)

References 5 publications

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“…In our patients, MRA demonstrated the highest sensitivity at 94.4% among the groups in detecting Bankart lesions, which is similar to the results of studies (15)(16)(17), which advocate MRA as the gold standard for diagnosing anterior-inferior labral lesions. The advantages of MRA over other forms of imaging are the ability to detect subtle lesions of the intra-articular structures such as the labrum and ligaments (18).…”

Section: Discussionsupporting

confidence: 89%

Is clinical evaluation alone sufficient for the diagnosis of a Bankart lesion without the use of magnetic resonance imaging?

2016

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Background: Imaging modalities such as magnetic resonance arthrogram (MRA) offer great utility in diagnosing Bankart lesions but they are associated with a high degree of intra and interobserver variability. This study aims to evaluate the diagnostic accuracy of clinical evaluation and imaging modalities in Bankart lesions such as magnetic resonance imaging (MRI) and MRA of the shoulder. Conclusions: In our study, we report that clinical evaluation with focused history-taking and anterior apprehension, load and shift clinical examination can diagnose anterior shoulder instability as reliably as MR imaging. For patients with equivocal clinical findings, MR imaging can aid in the diagnosis.

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Section: Discussionsupporting

confidence: 89%

Is clinical evaluation alone sufficient for the diagnosis of a Bankart lesion without the use of magnetic resonance imaging?

2016

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“…While MR arthrography is generally preferred over conventional unenhanced MRI for labral tears and has been shown to be more sensitive [7,8], previous studies evaluating MR arthrography, including T1W sequences, have reported a wide range of sensitivities. Palmer et al reported a sensitivity for labral tear of 92% [9,10].…”

Section: Discussionmentioning

confidence: 99%

“…Axial sequences were performed with TR/TE 434/11 ms, slice thickness 4 mm with an interslice gap of 0. 8 Review of the images was performed by three musculoskeletal radiologists with varying levels of experience (19,5, and 2 years). The radiologists were presented with either the paired axial and coronal GRE or the axial and coronal T1W sequences.…”

Section: Methodsmentioning

confidence: 99%

Gradient-recalled echo sequences in direct shoulder MR arthrography for evaluating the labrum

et al. 2007

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Objective The purpose of this study was to determine the utility of fat-suppressed gradient-recalled echo (GRE) compared with conventional spin echo T1-weighted (T1W) sequences in direct shoulder MR arthrography for evaluating labral tears. Materials and methods Three musculoskeletal radiologists retrospectively reviewed MR arthrograms performed over a 12-month period for which surgical correlation was available. Of 180 serial arthrograms, 31 patients had surgery with a mean of 48 days following imaging. Paired coronal oblique and axial T1W or GRE sequences were analyzed by consensus for labral tear (coronal oblique two-dimensional multi-echo data image combination, 2D MEDIC; and axial threedimensional double-echo steady-state, 3D DESS; Siemens MAGNETOM Sonata 1.5-T MR system). Interpretations were correlated with operative reports. Results Of 31 shoulders, 25 had labral tears at surgery. The GRE sequences depicted labral tears in 22, while T1W images depicted tears in 16 (sensitivity 88% versus 64%; p<0.05). Subdividing the labrum, GRE was significantly more sensitive for the posterior labrum (75% versus 25%; p<0.05) with a trend toward greater sensitivity at the anterior labrum (78% versus 56%; p=0.157) but not significantly different for the superior labrum (50% versus 57%; p>0.7). Specificities were somewhat lower for GRE.Conclusion Thin section GRE sequences are more sensitive than T1W for the detection of anterior and posterior labral tears. As the specificity of GRE was lower, it should be considered as an adjunctive imaging sequence that may improve depiction of labral tears, particularly smaller tears, in routine MR arthrography protocols.

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“…It can also provide clear discrimination between rotator cuff tears and small anatomical variations (5,6).…”

Section: Introductionmentioning

confidence: 99%

Discrepancy between Fluoroscopic Arthrography and Magnetic Resonance Arthrography in Patients with Arthroscopically Confirmed Supraspinatus Tendon Tears: The Additional Benefit of Cine Fluoroscopic Arthrography Images

Hahn

Lee

Suh

2016

J Korean Soc Radiol

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Purpose: To determine the additional diagnostic benefits of fluoroscopic arthrography (FA) in patients with full-thickness supraspinatus tendon (SST) tears by comparing FA images with magnetic resonance arthrography (MRA) images. Materials and Methods: This study included FA and MRA images of 53 patients who were confirmed to have full-thickness SST tears by arthroscopy. In the FA analysis, the presence of contrast leakage into the subacromial-subdeltoid bursa was recorded. In the MRA analysis, contrast leakage, retraction of a torn tendon, width and length of the tear, and supraspinatus atrophy were evaluated. Patients were divided into the concordant group or the discordant group based on the presence of contrast leakage to compare the characteristics of SST tears. We used Fisher's exact test and two-sample t-test for the comparison. Results: Of the 53 patients, 34 were included in the concordant group and 19 were included in the discordant group. In the concordant group, the grades of retraction were higher than those in the discordant group; the width and length of the tears were larger. Muscle atrophy was more severe in the concordant group. Conclusion: A full-thickness SST tear did not always exhibit contrast leakage on FA, particularly small SST tears or tears with low-grade retraction. FA can provide diagnostic information regarding the severity of full-thickness SST tears by itself.

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MR arthrography of the shoulder: comparison with conventional MR imaging.

Abstract: Twenty

Cited by 255 publications

References 5 publications

Is clinical evaluation alone sufficient for the diagnosis of a Bankart lesion without the use of magnetic resonance imaging?

Is clinical evaluation alone sufficient for the diagnosis of a Bankart lesion without the use of magnetic resonance imaging?

Gradient-recalled echo sequences in direct shoulder MR arthrography for evaluating the labrum

Discrepancy between Fluoroscopic Arthrography and Magnetic Resonance Arthrography in Patients with Arthroscopically Confirmed Supraspinatus Tendon Tears: The Additional Benefit of Cine Fluoroscopic Arthrography Images

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