Glenoid labrum: MR imaging with histologic correlation.

Loredo, Rebecca A; Longo, Carlos Henrique; Salonen, David; Yu, Joseph S.; Haghighi, Parviz; Trudell, Debra; Clopton, Paul; Resnick, Donald

doi:10.1148/radiology.196.1.7784584

Cited by 63 publications

(30 citation statements)

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“…Half of these normal labral segments had abnormal morphology or signal characteristics on arthrographic MR images. Labral signal variability may become more prominent in middle-aged patients [25,26] and in patients with chronic injuries [25,27]. The labrum can be variable in size and shape, and morphological criteria may not be sufficient to distinguish a small, normal labrum from a blunted, deficient labrum.…”

Section: Glenoid Labrummentioning

confidence: 99%

Direct magnetic resonance arthrography

Elentuck

Palmer

2004

Eur Radiol

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Magnetic resonance (MR) arthrography has gained increasing popularity as a diagnostic tool in the assessment of intra-articular derangements. Its role has been studied extensively in the shoulder, but it also has been explored in the hip, elbow, knee, wrist and ankle. This article reviews the current role of direct MR arthrography in several major joints, with consideration of pertinent anatomy, techniques and applications.

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Section: Glenoid Labrummentioning

confidence: 99%

Direct magnetic resonance arthrography

Elentuck

Palmer

2004

Eur Radiol

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“…Im Vergleich zur Literatur [4,9,10,19,22] [14,18,23]. In histo-pathologischen Untersuchungen konnte fibrovaskuläres und synoviales Gewebe nachgewiesen werden, welches in verletzte Areale des Labrums einsprosst [24,25] und sich nach intravenöser KM-Gabe gut abgrenzen lässt (s. Abb. 3).…”

Section: Diskussionunclassified

“…3). Bei der direkten MR-AR kann dieser Effekt durch eine Absorption des intraartikulär eingebrachten Gd-DTPA zwar ebenfalls beobachtet werden, ist hier jedoch nur gering ausgeprägt [24].…”

Section: Diskussionunclassified

Indirekte MR-Arthrographie der Schulter-Wertigkeit im Nachweis von SLAP-Läsionen

Herold

Hente²,

Zorger³

et al. 2003

Fortschr Röntgenstr

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“…Intralabral signal abnormalities could result from histologic entities including fibrovascular tissue or mucoid or eosinophilic degeneration [20]. Multiplanar gradient-echo sequences in one study showed linear or globular signal in normal labra, although analysis was possibly confounded because the proposed normal population included asymptomatic healthy subjects without surgical correlation [20].…”

Section: Discussionmentioning

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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Glenoid labrum: MR imaging with histologic correlation.

Abstract: There are several causes of altered intralabral signal intensity. A transitional fibrocartilaginous zone correlates with sublabral increased signal intensity. Intraarticular administration of gadolinium improves evaluation of the glenoid labrum.

Cited by 63 publications

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Direct magnetic resonance arthrography

Direct magnetic resonance arthrography

Indirekte MR-Arthrographie der Schulter-Wertigkeit im Nachweis von SLAP-Läsionen

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

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