Usefulness of the Abduction and External Rotation Views in Shoulder MR Arthrography

Saleem, Asgar M.; Lee, Joong K.; Novak, Leon

doi:10.2214/ajr.07.3962

Cited by 44 publications

(26 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Moreover, claustrophobic patients (VIBE may especially be useful for these patients) may benefit from being imaged in open MR units, which currently have magnet fields up to 1.0 T instead of 1.5 T. In this study, only axial and coronal planes were used to evaluate the rotator cuff. Sagittal planes and images acquired in the abduction-external rotation position were not studied, although these additional sequences are known to be of value for detecting (partial thickness) rotator cuff tears [23]. Bursal-sided partial thickness tears nor fatty infiltration and atrophy of the rotator cuff muscle bellies could be diagnosed using these VIBE sequences.…”

Section: Discussionmentioning

confidence: 99%

Fast MR arthrography using VIBE sequences to evaluate the rotator cuff

et al. 2009

View full text Add to dashboard Cite

Purpose The purpose of this paper was to evaluate if short volumetric interpolated breath-hold examination (VIBE) sequences can be used as a substitute for T1-weighted with fat saturation (T1-FS) sequences when performing magnetic resonance (MR) arthrography to diagnose rotator cuff tears. Materials and methods Eighty-two patients underwent direct MR arthrography of the shoulder joint using VIBE (acquisition time of 13 s) and T1-FS (acquisition time of 5 min) sequences in the axial and paracoronal plane on a 1.0-T MR unit. Two radiologists scored rotator cuff tendons on VIBE and T1-FS images separately as normal, small/ large partial thickness and full thickness tears with or without geyser sign. T1-FS sequences were considered the gold standard. Surgical correlation was available in a small sample. Results Sensitivity, specificity, and positive and negative predictive values of VIBE were greater than 92% for large articular-sided partial thickness and full thickness tears. For detecting fraying and articular-sided small partial thickness tears, these parameters were 55%, 94%, 94%, and 57%, respectively. The simple kappa value was 0.76, and the weighted kappa value was 0.86 for agreement between T1-FS and VIBE scores. All large partial and full thickness tears at surgery were correctly diagnosed using VIBE or T1-FS MR images. Conclusion Fast MR arthrography of the shoulder joint using VIBE sequences showed good concordance with the classically used T1-FS sequences for the appearance of the rotator cuff, in particular for large articular-sided partial thickness tears and for full thickness tears. Due to its very short acquisition time, VIBE may be especially useful when performing MR arthrography in claustrophobic patients or patients with a painful shoulder.

show abstract

Section: Discussionmentioning

confidence: 99%

Fast MR arthrography using VIBE sequences to evaluate the rotator cuff

et al. 2009

View full text Add to dashboard Cite

show abstract

“…The ABER position, however, should be considered in symptomatic overhead athletes or in patients with clinically suspected labral pathology . In addition, MRA performed in the ABER position gives radiologists the best opportunity to detect often subtle pathology associated with PGII . Improved visualisation of labral tears may be seen with the use of MRA and may also help visualise areas of chondral surface wear.…”

Section: Imagingmentioning

confidence: 99%

“…16 In addition, MRA performed in the ABER position gives radiologists the best opportunity to detect often subtle pathology associated with PGII. 17 Improved visualisation of labral tears may be seen with the use of MRA and may also help visualise areas of chondral surface wear. Non-displaced labral tears in the neutral position may displace in the ABER position due to increased tension, while capsular distension with contrast improves the outline of the labrum.…”

Section: Imagingmentioning

confidence: 99%

Posterosuperior glenoid internal impingement of the shoulder in the overhead athlete: Pathogenesis, clinical features and MR imaging findings

Fessa

Peduto

Linklater³

et al. 2015

J Med Imag Rad Onc

View full text Add to dashboard Cite

CK Fessa SummaryPosterosuperior glenoid internal impingement (PGII) is an impingement syndrome of the shoulder that is most commonly seen in the throwing or overhead athlete. The supraspinatus can be normally compressed or impinged between the greater tuberosity and the posterosuperior labrum in the abduction and external rotation position. However, repetitive throwing and biomechanical abnormalities may lead to the intensification of this contact and to the clinical and pathological picture of PGII. The injured athlete usually complains of poor throwing performance and pain located in the posterosuperior aspect of the shoulder. Two main theories regarding the aetiology of PGII have been postulated with differing initial mechanisms. The MRI features of PGII have been described and include supraspinatus and anterior infraspinatus partial undersurface tears, bony changes at the humeral head and labral pathology, including a variation of the type II superior labrum from anterior to posterior lesion. This pictorial essay aims to present cases illustrating the pathophysiology, clinical features and recently described MRI findings, and discuss some of the MR protocol considerations.

show abstract

“…This may occur in isolation or from extension of an articular or bursal-sided tear (Figs. 21 This also allows detection of delaminating tears which may not imbibe contrast on routine positioning. When the signal abnormality extends through the entire tendon from the articular to bursal surface, a fullthickness tear is diagnosed (Fig.…”

Section: Huang and Hughesmentioning

confidence: 99%

“…19 and 20). 21 This is the result of abnormal contact between the rotator cuff and the posterosuperior labrum, leading to articular-sided tears of the rotator cuff (Fig. 21).…”

Section: Huang and Hughesmentioning

confidence: 99%