CT与MRI平扫诊断强直性脊柱炎骶髂关节病变的对照研究

目的比较分析CT与MRI平扫在诊断强直性脊柱炎骶骼关节病变中的应用情况。方法收集近3年来我院门诊和住院部接受治疗的强直性脊柱炎骶髂关节病变患者60例,分别使用CT和MRI进行检查,对检查结果进行分级对比。结果 MRI对于强直性脊柱炎的早期诊断效果要高于CT,P0.05;而在强直性脊柱炎≥II级的结果对比中无明显差异,P0.05。CT对于骨质侵蚀和骨质硬化的检出效果优于MRI,P0.05。结论 MRI对于强直性脊柱炎的早期诊断效果高于CT,CT对于骨质侵蚀和骨质硬化的检出效果优于MRI,二者互补,CT与MRI联合对于强直性脊柱炎骶髂关节病变早期诊断具有重大的意义。

Comparison of CT and MRI in Detection of Abnormal Sacroiliac Joint Changes in Patients with Early Stage of Ankylosing Spondylitis

Objective To compare the clinical value of CT and MRI plain scan in detection of abnormal sacroiliac joint changes in patients with ankylosing spondylitis(AS).Methods The CT and MRI data of 60 cases of AS which undergoing treatment in the past three years were analyzed and compared retrospectively.Results The diagnostic effect of MRI for the early stage of AS is higher than that of CT, P<0.05. The diagnostic effect of MRI and CT had no obvious difference in grade 2 or more serious cases, (P>0.05). The detection effect of CT is higher than MRI in cases with bone erosion and bone hardening,P<0.05.Conclusion The diagnostic effect of MRI is higher than that of CT in early stage of ankylosing spondylitis, CT is more sensitive in detecting bone erosion and bone hardening than MRI. The combination of CT and MRI in abnormal sacroiliac joint changes in patients with AS is of great significance.