斜横轴位扫描在距腓前韧带损伤诊断中的价值

Diagnostic value of oblique axial scan for anterior talofibular ligament in ankle

目的探讨平行于距腓前韧带斜横轴位扫描在距腓前韧带损伤诊断中的价值。方法收集我院2010年6月至2015年3月踝关节外伤患者96例,全部患者除踝关节行常规MRI检查序列外,增加沿距腓前韧带走行的斜横轴位检查,由2名放射诊断医师(5年以上关节MRI诊断经验)分析对比常规轴位和斜横轴位对距腓前韧带完整显示率和距腓前韧带损伤分级,并观察分析踝关节的其他损伤。结果常规横轴位完整显示距腓前韧带69例(71.8%),斜横轴位完整显示距腓前韧带93例(96.9%)。斜横轴位诊断距腓前韧带损伤71例,常规横轴位诊断距腓前韧带损伤52例,斜横轴位较常规横轴位增加19例。结论增加斜横轴位有助于评价外踝不稳的距腓前韧带损伤。

Objective To clarify the diagnostic value of oblique axial scan parallel to the course of the anterior talofibular ligament in magnetic resonance imaging of anterior talofibular ligament in patients with chronic ankle instability. Methods 96 patients with ankle injury who were admitted into our hospital form June 2010 to March 2015 were examed with oblique axial scan beside the routine axial magnetic resonance imaging examination. The grade of the anterior talofibular ligament injury and confirmed full-length views of the anterior talofibular ligament were analyzed by two musculoskeletal radiologists（ with more than 5 years experience）,and associated lesions were also checked. Results The full-length view of the anterior talofibular ligament was checked in 69 patients（ 71. 8%） through the routine axial view and it was checked in 93 patients（ 96. 9%） through the oblique axial scan view. Anterior talofibular ligament injury was checked in 71 patients through the oblique axial scan,which was 19 patients more than that through the routine axial. Conclusion An additional oblique axial scan is useful in evaluation of anterior talofiibular ligament in patients with ankle injury.