尺侧副韧带：超声和磁共振成像对移位和未移位撕裂的鉴别诊断
Ulnar collateral ligament: differentiation of displaced and nondisplaced tears with US and MR imaging.
作者信息
Hergan K, Mittler C, Oser W
机构信息
Zentrales Institut für Radiologie, LKH Feldkirch, Austria.
出版信息
Radiology. 1995 Jan;194(1):65-71. doi: 10.1148/radiology.194.1.7997584.
PURPOSE
To compare the usefulness of ultrasound (US) and magnetic resonance (MR) imaging in the differentiation of displaced and nondisplaced tears of the ulnar collateral ligament (UCL).
MATERIALS AND METHODS
Seventeen patients (eight female and nine male, aged 14-70 years) with clinically diagnosed tears underwent examination with US and MR imaging. T1-weighted, spin-echo (SE) and T2-weighted, turbo SE sequences were used. MR and US findings were compared with those of surgery. Normal UCLs in 21 volunteers were also examined with MR imaging.
RESULTS
The results of US were correct in 15 patients, but displaced and nondisplaced ruptures were misinterpreted in two patients (sensitivity, 88%; specificity, 83% for displaced, 91% for nondisplaced). Sensitivity and specificity were both 100% for MR imaging. The T2-weighted sequence was more useful because the normal UCL is rarely homogeneously hypointense.
CONCLUSION
MR imaging is better than US, but both methods are useful in the evaluation of the torn UCL.
目的
比较超声（US）和磁共振（MR）成像在鉴别尺侧副韧带（UCL）移位和未移位撕裂方面的效用。
材料与方法
17例临床诊断为韧带撕裂的患者（8名女性和9名男性，年龄14 - 70岁）接受了超声和磁共振成像检查。采用了T1加权自旋回波（SE）序列和T2加权快速自旋回波序列。将磁共振和超声检查结果与手术结果进行比较。还对21名志愿者的正常尺侧副韧带进行了磁共振成像检查。
结果
超声检查结果在15例患者中正确，但有2例患者的移位和未移位撕裂被误诊（敏感性为88%；移位撕裂的特异性为83%，未移位撕裂的特异性为91%）。磁共振成像的敏感性和特异性均为100%。T2加权序列更有用，因为正常的尺侧副韧带很少呈均匀低信号。
结论
磁共振成像优于超声，但两种方法在评估撕裂的尺侧副韧带时都有用。
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