3D-MEDIC-WE序列对骶髂关节炎关节软骨病变的诊断价值  

Application research of 3D-MEDIC-WE sequence for sacroiliitis

作　　者：孔龙[1] 易海[2] 张刚[1] 李建[1] 史英红[1] 张兴蕊[1] 毛宁[1] 谢海柱[1] 

机构地区：[1]青岛大学附属烟台毓璜顶医院影像科,山东烟台264000 [2]中国人民解放军第四二二医院精神科,广东湛江524500

出　　处：《医学影像学杂志》2017年第8期1557-1560,共4页Journal of Medical Imaging

基　　金：山东省烟台市重点研发计划基金资助项目(编号:2016WS026)

摘　　要：目的评价T_1WI、T_2WI、TIRM-T_2WI及3D-MEDIC-WE序列对骶髂关节炎关节软骨病变的诊断价值。方法收集临床高度怀疑骶髂关节炎的患者60例,另选取20例志愿者作为对照组。在3D-MEDIC-WE序列上测量对照组骶髂关节软骨厚度;在TIRM-T_2WI、3D-MEDIC-WE序列上分别对患者组骶髂关节软骨进行分级评分。结果正常骶髂关节软骨厚约(2.70±0.41)mm,骶侧软骨厚约(1.21±0.22)mm,髂侧软骨厚约(0.72±0.31)mm,骶侧软骨比髂侧软骨明显厚、约为其2倍(P<0.01)。患者组在3D-MEDIC-WE序列上的软骨侵蚀分数高于TIRM-T_2WI序列(P<0.01)。结论3D-MEDIC-WE序列可以清晰显示骶髂关节软骨;3D-MEDIC-WE序列对骶髂关节炎关节软骨病变的显示优于其他序列。Objective To evaluate the diagnostic value of MR T1WI, TIRM-T2 WI and 3 D-MEDIC-WE sequences for sacroili- ac joint （SIJ） cartilage erosion. Methods A total of 60 patients highly suspected as sacroiliitis were collected, and twenty healthy volunteers were enrolled into the control group; and four MRI sequences, including oblique-coronal-T1WI, oblique-coronal-T2 WI, oblique-coronal-TIRM-T2 WI and oblique-coronal-3D-MEDIC-WE were performed. The total thickness of SIJ cartilage, the cartilage of iliac and sacral sides in control group were measured respectively. The grading of SIJ cartilage in patient group were assessed according to predefined scale. Results The SIJ cartilage was （2.70 ± 0.41 ） mm, cartilage of sacrum （ 1.21 ± 0. 22 ） mm was thicker than that of ilium＇ s （0.72 ± 0.31 ） mm, and there was significant difference （ P 〈 0.01 ）. Scores of cartilage erosion in 3D-MEDIC-WE sequence were statistiely higher than those in TIRM-T2WI sequences （ P 〈 0.01 ）. Conclusion 3D-MEDIC-WE sequence ean identify SIJ cartilage, including sacral and iliac side and the gap between them. 3D-MEDIC-WE can clearly show SIJ cartilage and the diagnostic accuracy of 3D-MEDIC-WE sequence for cartilage injury is better than that of T1 WI, T2 WI, T2 WI-TIRM.

关 键 词：磁共振成像 骶髂关节炎 软骨 

分 类 号：R445.2[医药卫生—影像医学与核医学] R684[医药卫生—诊断学]