高频超声与MRI诊断儿童肘关节微小骨折的临床价值探讨

目的 探讨高频超声(HFUS)与核磁共振成像(MRI)在儿童肘关节微小骨折中的应用价值.方法 选取2019年5月至2020年11月本院收治的57例疑似肘关节微小骨折患儿,均行HFUS与MRI检查,根据MRI诊断结果将患儿分为骨折组(n=26)、无骨折组(n=31),比较两组一般资料、超声征象和参数,分析超声征象和参数与...

The clinical value of high frequency ultrasound and MRI in the diagnosis of microfracture of the elbow joint in children

Objective To explore the application value of high frequency ultrasound(HFUS)and magnetic resonance imaging(MRI)in children with microfractures of the elbow joint.Methods From May 2019 to November 2020,57 children with suspected elbow joint microfractures in our hospital were selected for HFUS and MRI.According to the results of MRI diagnosis,children were divided into the fracture group(n=26)and the non?fracture group(n=31).The general data,ultrasound signs and parameters of the two groups were compared,and the relationship between the ultrasound signs and parameters and the microfrac?tures of the elbow joint in children was analyzed.Results The consistency of HFUS and MRI in the diagnosis of microfractures of the elbow joint in children was 96.49%,the Kappa value was 0.942,and the 95%CI was 0.765~1.118(P<0.05).The comparison of muscle injury or hematoma,positive fat pad sign,joint effusion,cortical bone continuity,and fat pad thickness in front of the elbow between the fracture group and the non?fracture group was statistically significant(P<0.05).Muscle injury or hematoma,positive fat pad sign,joint effusion,continuity distribution of cortical bone,and thickness of elbow fat pad were all related to microfrac?tures of the elbow joint in children(P<0.05).The sensitivity and specificity of the positive fat pad sign in the diagnosis of microfractures of the elbow joint in children were 100%.The AUC of muscle injury or hemato?ma,joint effusion,continuity of cortical bone,and thickness of elbow fat pad for the diagnosis of microfrac?tures of the elbow joint in children were 0.766,0.699,0.673,and 0.835,respectively.Conclusion The HFUS diagnosis of microfractures of elbow joints in children is consistent with the MRI results.It can directly display positive signs of fat pads and muscle damage signs,and provide effective imaging technical support for the clinical diagnosis and treatment of microfractures of elbow joints in children.