Department of Clinical Radiology, University of Eastern Finland and Kuopio University Hospital, Kuopio, Finland.
Ultrasound Med Biol. 2010 Dec;36(12):1981-9. doi: 10.1016/j.ultrasmedbio.2010.09.001. Epub 2010 Oct 20.
The aim of this study was to compare the accuracy of ultrasonography (US) and magnetic resonance artrography (MRA) for the detection and measurement of rotator cuff tears, using surgical findings as a standard. A total of 77 consecutive patients with suspected rotator cuff tears were prospectively studied with US and MRA. Rotator cuff tears were identified by US with sensitivity, specificity, positive predictive and negative predictive values of 92%, 45%, 91% and 50%, respectively, and by MRA with values of 97%, 82%, 97% and 82%, respectively. US was not reliable for differentiating between partial and full thickness tears. US and MRA underestimated the tear sizes by an average of 15 mm and 4 mm, respectively. Our results suggest that US could be used as a screening test to confirm a suspected rotator cuff tear. In patients with negative findings, an MRA should be considered for substantiation.
本研究旨在比较超声（US）和磁共振关节造影术（MRA）在检测和测量肩袖撕裂方面的准确性，以手术结果为标准。对 77 例疑似肩袖撕裂的连续患者进行前瞻性 US 和 MRA 研究。US 检测肩袖撕裂的敏感性、特异性、阳性预测值和阴性预测值分别为 92%、45%、91%和 50%，MRA 的相应值分别为 97%、82%、97%和 82%。US 不能可靠地区分部分厚度撕裂和全厚度撕裂。US 和 MRA 分别平均低估了 15 毫米和 4 毫米的撕裂大小。我们的结果表明，US 可作为一种筛查试验，以确认疑似肩袖撕裂。对于阴性发现的患者，应考虑进行 MRA 以证实。
