高频超声与MRI检查在肩袖撕裂诊断中的比较研究

目的：比较和评价高频超声与 MRI 在肩袖撕裂诊断中的应用价值。方法选择经肩关节镜证实为单侧肩袖撕裂，且术前同时行高频超声和 MRI 检查的患者86例，以肩关节镜为评价标准，分别计算高频超声和 MRI 诊断肩袖总体(含全层和部分)、全层及部分撕裂的准确率。率的比较采用χ2检验。结果86例患者中，肩关节镜证实肩袖全层撕裂30例，部分撕裂56例。高频超声诊断全层撕裂28例，部分撕裂43例；MRI 诊断全层撕裂28例，部分撕裂51例。高频超声和 MRI 诊断肩袖总体、全层及部分撕裂的准确率分别为82.6%、93.3%、76.8%和91.9%、93.3%、91.6%。高频超声与 MRI 诊断肩袖总体和全层撕裂准确率的差异无统计学意义(P >0.05)，但诊断部分撕裂的准确率高频超声略低于 MRI 检查(P <0.05)。结论高频超声与 MRI 检查在肩袖全层撕裂诊断中均具有较高的准确率，高频超声诊断价值略低于 MRI。

Comparative study of high frequency ultrasound and MRI in the diagnosis of rotator cuff tears

Objective To comparative evaluation the application value of high frequency ultrasound (HFU)and magnetic reso-nance imaging (MRI)in the diagnosis of rotator cuff tears(RCT).Methods 86 patients of unilateral RCT confirmed by shoulder ar-throscopy were chosen.The detection rate by HFU and MRI before the surgery was compared.Shoulder arthroscopic finding was as the evaluation standard,the accuracy of HFU and MRI in the diagnosis of RCT was calculated which included:total (full and partial) RCT,full RCT,partial RCT.Chi-square test was used to compare the accuracy rate.Results Among 86 patients,30 patients with full RCT and 56 patients with partial RCT were detected by shoulder arthroscopy,in which 28 patients with full RCT and 43 patients with partial RCT were found by HFU,and 28 patients with full RCT and 5 1 patients with partial RCT were found by MRI respec-tively.The accuracy of HFU and MRI in the diagnosis of total,full,partial tear RCT were 82.6%,93.3%,76.8% and 91.9%,93.3%, 91.6% respectively.There was no significant difference between HFU and MRI in diagnosing total and full RCT(P >0.05),the ac-curacy on HFU in diagnosing partial RCT was slightly lower than that on MRI (P <0.05).Conclusion Both HFU and MRI have relatively high accuracy in diagnosing full RCT,HFU is slightly lower than MRI in diagnosing partial RCT.