超声、X线及MRI检出银屑病关节炎踝关节病变的对比研究

Comparative study on diagnostic value of ultrasound, X-ray and MRI in psoriatic arthritis of ankle lesions

目的比较高频超声、X线及MRI对银屑病关节炎踝关节病变的检出情况,探讨各检查方法对踝关节病变的临床应用价值。方法对30例确诊为银屑病关节炎的患者分别行超声、X线及MRI检查,比较各检查方法对踝关节病变的检出情况。结果超声检出滑膜增厚6例,骨质侵蚀2例,关节腔积液5例,腱鞘炎6例;X线检出骨质侵蚀2例;MRI检出滑膜增厚3例,骨质侵蚀2例,骨髓水肿6例,关节腔积液8例。超声与MRI检出情况比较差异无统计学意义;超声和MRI与X线检出情况比较,差异均有统计学意义(均P<0.05)。结论超声能够检出银屑病关节炎踝关节病变的腔外病变,MRI对腔内病变的检出更有优势,此两种方法较X线能更准确、全面地诊断银屑病关节炎病变情况。

Objective To investigate clinic application value of high frequency ultrasound,X-ray and MRI in the diagnosis of psoriatic arthritis of ankle lesions.Methods Thirty patients with psoriatic arthritis were examined by ultrasound,X-ray and MRI, respectively,and the result of examination were compared.Results High frequency ultrasound showed 6 cases of synovial thickening,2 cases of bone erosion,5 cases of articular cavity effusion,6 cases of tenosynovitis. MRI showed 3 cases of synovial thickening,2 cases of bone erosion,6 cases of bone marrow edema,8 cases of articular cavity effusion.Compared with high frequency ultrasound and MRI,X-ray showed 2 cases of bone erosion. There was no significant difference in detection rate between high frequency ultrasound and MRI.Compared with X-ray, there was significant difference in detection rate by high frequency ultrasound and MRI（all P〈0.05）.Conclusion Ultrasound can detect psoriatic arthritis ankle lesions outside the cavity lesions,MRI has more advantages in detecting intracavity lesions.Compared with X-ray,ultrasound and MRI can more accurately and comprehensively diagnose psoriatic arthritis of ankle lesions.