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  • Title: Finger A2 pulley lesions in rock climbers: detection and characterization with magnetic resonance imaging at 3 Tesla--initial results.
    Author: Guntern D, Goncalves-Matoso V, Gray A, Picht C, Schnyder P, Theumann N.
    Journal: Invest Radiol; 2007 Jun; 42(6):435-41. PubMed ID: 17507816.
    Abstract:
    OBJECTIVES: To evaluate magnetic resonance imaging (MRI) at 3 T in the diagnosis and characterization of lesions of the finger flexor A2 pulley in patients with clinically suspected A2 pulley lesions. MATERIALS AND METHODS: Eight consecutive patients with clinically suspected lesions of the A2 pulley were included in this retrospective study. 3 T MRI was performed with T1-weighted, T2-weighted fat suppressed, and T1-weighted fat suppressed contrast enhanced sequences. The A2 pulley of all the fingers visible on the images were analyzed and pulley lesions characterized. RESULTS: All asymptomatic pulleys were normal at MRI. In the 8 symptomatic fingers 7 pulleys were abnormal at MRI. With the clinical examination as gold standard, sensitivity, specificity, positive predictive value, and negative predictive value of MRI were 87.5%, 100%, 100%, and 95.2% respectively. Characterization of the different pulley lesion was possible. CONCLUSION: MRI at 3 T allows reliable direct visualization and characterization of traumatic A2 pulley lesions.
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