An overview of MR arthrography with emphasis on the current technique and applicational hints and tips

Şahin, Gülden; Demirtaş, Mehmet

doi:10.1016/j.ejrad.2006.01.002

Cited by 54 publications

(40 citation statements)

References 61 publications

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“…Tempelhof et al [80] found that the frequency of cuff tears in asymptomatic volunteers increased from 13% in the youngest group (age 50-59) to 20% (age 60-69), 31% (age [70][71][72][73][74][75][76][77][78][79] and 51% in the oldest group (80)(81)(82)(83)(84)(85)(86)(87)(88)(89). Hashimoto et al [40] described seven characteristic features of such age-related degeneration in cadaveric specimens: thinning and disorientation of the collagen fibers (100%), myxoid degeneration (100%), hyaline degeneration (100%), vascular proliferation (34%), fatty infiltration (33%), chondroid metaplasia (21%) and calcification (19%).…”

Section: Rotator Cuff Tendon Degenerationmentioning

confidence: 99%

Rotator cuff tears: pathology and repair

Yadav

Nho

Romeo

et al. 2008

Knee Surg Sports Traumatol Arthrosc

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By virtue of its anatomy and function, the rotator cuff is vulnerable to considerable morbidity, often necessitating surgical intervention. The factors contributing to cuff disease can be divided into those extrinsic to the rotator cuff (most notably impingement) and those intrinsic to the cuff (age-related degeneration, hypovascularity and inflammation amongst others). In an era of emerging biologic interventions, our interventions are increasingly being modulated by our understanding of these core processes, many of which remain uncertain today. When we do intervene surgically, the techniques we employ are particularly challenging in the context of the tremendous pace of advancement. Several recent studies have shown that arthroscopic repair gives similar functional results to that of mini-open and open procedures, with all the benefits of minimally invasive surgery. However, the 'best' repair construct remains unknown, with wide variations in surgeon preference. Here we present a literature review encompassing recent developments in our understanding of basic science in rotator cuff disease as well as an up-to-date evidence-based comparison of different techniques available to the surgeon for cuff repair.

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Section: Rotator Cuff Tendon Degenerationmentioning

confidence: 99%

Rotator cuff tears: pathology and repair

Yadav

Nho

Romeo

et al. 2008

Knee Surg Sports Traumatol Arthrosc

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“…Tear with significant fraying was reported at arthroscopy fat-saturated sequences in direct MR shoulder arthrography. In one recent review of MR arthrographic techniques of multiple joints, the authors indicated that they included a fat-saturated T1-weighted 3D fast spoiled gradient echo sequence in one imaging plane in every joint, in addition to T1W spin echo or fast spin echo, to obtain thin sections that increased the depiction of small tears [17]. However, the authors did not provide data evaluating these sequences with regard to the glenoid labrum.…”

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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“…The standardly used MR technique after gadolinium contrast injection into the shoulder joint includes spin echo T1-weighted sequences with fat saturation (T1-FS) applied in different planes, and the total examination lasts at least 10-15 min to perform [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Fast MR arthrography using VIBE sequences to evaluate the rotator cuff

et al. 2009

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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.

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An overview of MR arthrography with emphasis on the current technique and applicational hints and tips

Cited by 54 publications

References 61 publications

Rotator cuff tears: pathology and repair

Rotator cuff tears: pathology and repair

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

Fast MR arthrography using VIBE sequences to evaluate the rotator cuff

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