类风湿性关节炎和强直性脊柱炎骶髂关节病变的CT诊断_李自强.pdf

2008 18 5 　JMed Imaging Vol.18 No.5 2008 CT 李自强,葵　旭,肖恩华 (　　　410011) 　　【　】　:CT 。:31 69 , CT 。:CT , , , 、;CT , , , , 。:CT 。 【】　;;,X :R593.22;R593.23;814.42　　　:A　　　:1006-9011(2008)05-0542-03 CT differential diagnosis of changes in articulatio sacroiliacae between ankylosing spondylitis and rheumatoid arthritis LI Zi-qiang, K UI X u, XIAO En-hua Department of Radiology , the Second Xiangya Hopital, Central South Univer ity , Chang ha 410011, P .R .China 【Abstract】　Objective:To evaluate the value of CT differential diagnosis of changes in articulatio sacroiliacae bet een ankylosing spondylitis (AS)and rheumatoid arthritis (RA).Methods:The CT changes in articulatio sacroiliacae bet een69 casesof AS and 31 cas- es of RA ere analyzed.Results:CT manifestationsof articulatio sacroiliacae of RA sho ed osteoporosis of articular surface mainly, sub- chondral small cystic bone defect, and normal or enlarged joint space in early stage andnarro ed joint space in late stage.CT manifesta- tions of articulatio sacroiliacae of AS sho ed sclerosis and destruction of articular surface mainly, blurred articular surface and narro ed joint space in early stage, bone destruction or ankylosis in late stage.Conclusion:CT is high valuable on the differential diagnosis of changes in articulatio sacroiliacae bet een ankylosing spondylitis and rheumatoid arthritis. 【Key words】　Articulatio sacroiliacae;Rheumatoid arthritis;Ankylosing spondylitis 　　 , 、、 , , 。ESR、RF、CRP、HLA-B27 。 [1,2] X ,CT 1.2　CT , 100 CT ti n /GE Hispeeg Fxi CT CT ,。 ,, 1　 ,Large ,10mm,3～5mm,W:3500, L:500,kV:120,MH100 ～150,CT 1.1