SPECT／CT骨显像在足踝关节病诊治中的应用进展

Application of SPECT/CT in diagnosis and treatment of foot and ankle diseases

足踝关节复杂的解剖结构给检查带来了较大的困难.目前足踝关节病的初步检查方法是行X线评估,MRI检查则用于进一步明确诊断.^99Tc^m-MDP平面骨显像对骨代谢的病变具有很高的灵敏度,但由于分辨率低和缺乏解剖结构信息,因而对足踝关节的检查缺乏特异性.^99Tc^m-MDPSPECT/CT断层骨显像将骨显像的高灵敏度与CT提供的精细解剖结构完美结合,从而更好地显示^99Tc^m-MDP摄取的位置和解剖结构的改变.近年来SPECT/CT断层骨显像已逐步用于足踝关节病变的辅助诊断.笔者对SPECT/CT断层骨显像在足踝关节病变诊断中的临床应用进行了综述.

The complex function of the ankle joint has greatly complicated the examination of its related diseases.The preliminary method for the assessment of foot and ankle diseases involves radiographic assessment,while MRI is used for further diagnosis.Although ^99Tc^m-MDP bone scintigraphy is sensitive to changes in bone metabolism,it has poor specificity because of its low resolution and inability to provide anatomical structural information.^99Tc^m-MDP SPECT/CT combines the sensitivity of ^99Tc^m-MDP bone scintigraphy with the anatomical structural information provided by CT to show the localization of uptaken MDP and the structural changes associated with foot and ankle diseases.In recent years,SPECT/CT has been gradually used to assist the diagnosis of foot and ankle diseases.In this article,we discuss the clinical application of SPECT/CT tomographic bone scintigraphy in the diagnosis of foot and ankle diseases.