In Vivo Visualization of Vascular Patterns of Rotator Cuff Tears Using Contrast-Enhanced Ultrasound
スポンサーリンク
概要
- 論文の詳細を見る
Background: Hypoxia and decreased blood supply have been proposed as risks for tendon rupture. Visualization of the vascularity of intact and torn rotator cuffs would be useful for improving treatments for rotator cuff tear. Purpose: To assess vascularity inside a tendon or an adjacent rotator cuff insertion point in patients differing in age and extent of damage to the tendon. Study Design: Cross-sectional study. Methods: Ten volunteers (all men) and 15 patients (10 men, 5 women) consented to participate in the study. Contrast agent for enhanced ultrasound was injected intravenously. Enhanced ultrasound images of the torn cuff and the contralateral shoulder were recorded for 1 minute. Four small regions of interest, the articular and bursal sides of the tendon and the medial and lateral sides of the bursa, were studied on all shoulders. Results: There was a significant decrease in blood flow in the intratendinous region in elderly subjects compared with young subjects but age had no effect on blood flow in bursal tissue. Blood flow in ruptured rotator cuffs did not differ from that in intact rotator cuffs. The intraclass correlation coefficient for intraobserver reproducibility was 0.82 (95% confidence interval, 0.77 to 0.86). Conclusions: The findings of this investigation were the hypovascular pattern in intratendinous tissue compared with the subacromial bursa, the age-related decrease in intratendinous vascularity, and the hypovascular pattern in the tendon, regardless of rupture of the tendon. Clinical Relevance: Clarification of vascular patterns inside or around the torn ends of a rotator cuff will assist in the development of successful treatments for torn rotator cuffs.
論文 | ランダム
- 知的財産の保護一般(板橋郁夫先生退職記念号)
- 日本における営業秘密保護法制の意義について : 営業秘密の意義と保護法制の整備(法学部開設25周年記念号)
- アメリカにおけるトレード・シークレット法の形成
- ドイツにおける営業秘密保護立法の動向(法学部開設20周年記念号)
- カリキュラム改革後の中国語 (特集 新カリキュラム・最初の4年を振り返って)