Diagnostic value of X-ray,CT and MRI for sacroiliac joint lesions in patients with early stage of ankylosing spondylitis
10.3760/cma.j.issn.1008-6706.2017.12.013
- VernacularTitle:X线、CT与MRI检查在早期强直性脊柱炎骶髂关节病变诊断中的价值
- Author:
Gaofeng HU
- Keywords:
Spondylitis,Ankylosing;
Sacroiliac joint;
X-rays;
Tomography,X-ray computed;
Magnetic resonance imaging
- From:
Chinese Journal of Primary Medicine and Pharmacy
2017;24(12):1805-1809
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare the diagnostic value of X-ray,CT or MRI in detection of abnormal sacroiliac joint changes in patients with early stage ankylosing spondylitis.Methods One hundred and twenty patients with early stage ankylosing spondylitis who admitted in our hospital underwent X-ray,CT and MRI subsequently were selected,and the diagnostic value was analyzed.Results There were no statistically significant differences in diagnostic accuracy of articular cartilage swelling,joint space narrowing,joint space widening,the articular surface of cystic mass,articular sclerosis by CT and MRI(all P>0.05),except for bone erosion and bone cyst lesion(x2 =8.179,6.289,all P<0.05).The detection rates of articular cartilage swelling,joint space narrowing,joint space widening,articular erosion,the articular surface of cystic mass,and articular sclerosis by X-ray were 0.83%,16.67%,59.17%,64.17%,34.17%,55% respectively,which by CT were 7.50%,31.67%,70.00%,85.00%,69.17%,70.83% respectively,which by MRI were 11.67%,32.50%,70.83%,96.67%,84.17.00%,71.67% respectively.There was statistical difference in the diagnostic accuracy of all measurements among CT,MRI and X-ray(x2=5.572,10.027,2.563,2.988,11.444,33.539,24.527,51.740,5.370,5.983,all P<0.05) except for joint space widening(x2 =6.138,6.757,all P>0.05).Conclusion X-ray associated with low accuracy rate and high rate of miss diagnosis.With the high accuracy rate in detection of abnormal sacroiliac joint changes in patients with early stage ankylosing spondylitis,both CT and MRI are candidate for commonly used diagnostic methods for early diagnosis.
