摘要
目的探讨致密性骨炎(osteitis condensans ilii, OCI)与中轴型脊柱关节炎(axial spondyloarthritis,ax-SpA)T2WI脂肪抑制序列(fat-saturated T2WI, T2WI-FS)高信号改变特点及鉴别。材料与方法 回顾性分析2017年1月至2021年12月间确诊的OCI女性患者23例和ax-SpA女性患者34例,分析其在骶髂关节MRI上T2WI-FS高信号的发生率及影像学征象,着重分析T2WI-FS高信号的位置、范围、形态和信号强度。结果 与ax-SpA组相比,OCI组骶髂关节T2WI-FS高信号总体发生率更低[56.5%(13/23) vs. 85.3%(29/34);χ^(2)=5.857,P=0.016],双侧骶髂关节T2WI-FS高信号发生率较低[26.1%(6/23)vs. 55.9%(19/34);χ^(2)=4.946,P=0.026],单侧骶髂关节T2WI-FS高信号发生率无明显差异[30.4%(7/23) vs. 29.4%(10/34);χ^(2)=0.007,P=0.934]。OCI组与ax-Sp A组骶髂关节T2WI-FS高信号分布侧别、上/下份、象限及内侧缘位置均差异无统计学意义(P>0.05),形态上OCI组以条带状分布为主,ax-SpA组以片状为主,差异具有统计学意义(P<0.001)。OCI组与ax-SpA组骶髂关节T2WI-FS高信号范围、信号强度差异具有统计学意义(P<0.001);OCI组内骶侧与髂侧、上份与下份、各象限间T2WI-FS高信号范围、信号强度差异无统计学意义(P>0.05)。结论 T2WI-FS高信号可见于OCI,多表现为紧邻骨质硬化缘的、范围较小、以条带状为主的稍高信号,有助于与ax-SpA相关骨髓水肿的鉴别。
Objective:To explore the features and rules of sacroiliac joint bone marrow fat-saturated T2WI(T2WI-FS)high signal in osteitis condensans ilii(OCI)and axial spondyloarthritis(ax-SpA).Materials and Methods:Twenty-three female patients diagnosed with OCI and thirty-four female patients diagnosed with ax-SpA between January 2017 and December 2021 were retrospectively enrolled.The incidence and imaging features of sacroiliac joint bone marrow T2WI-FS high signal were assessed,with a particular focus on the characteristics such as location,range,shape,and signal intensity.Results:Compared with the ax-SpA group,the overall incidence of high T2WI-FS signal in the sacroiliac joint was lower in the OCI group[56.5%(13/23)vs.85.3%(29/34);χ^(2)=5.857,P=0.016].The incidence of high T2WI-FS signal in the bilateral sacroiliac joint was also lower[26.1%(6/23)vs.55.9%(19/34);χ^(2)=4.946,P=0.026].However,there was no significant difference in the incidence of high T2WI-FS signal in unilateral sacroiliac joint[30.4%(7/23)vs.29.4%(10/34);χ^(2)=0.007,P=0.934].There were no significant differences between the OCI group and the ax-SpA group in terms of the side,upper/lower part,quadrant and medial margin of high signal distribution in the sacroiliac joint(P>0.05).In terms of morphology,the OCI group mainly exhibited a ribbon-like shape,while the ax-SpA group mainly showed a flaky morphology,and the difference was statistically significant(P<0.001).The high signal range and signal intensity of sacroiliac joint T2WI-FS were also statistically significant between the OCI group and the ax-SpA group(P<0.001).However,there were no significant differences in the high signal range and intensity of T2WI-FS between the sacral and iliac sides,superior and inferior parts,and among quadrants in the OCI group(P>0.05).Conclusions:Sacroiliac joint bone marrow T2WI-FS high signal can be seen in OCI,which is usually presented as a small ribbon adjacent to the sclerotic margin with slightly high signal,and contributes to the differential diagnosis of
作者
刘超然
李文娟
祝云飞
何小俊
张珂
洪国斌
LIU Chaoran;LI Wenjuan;ZHU Yunfei;HE Xiaojun;ZHANG Ke;HONG Guobin(Department of Radiology,Fifth Affiliated Hospital,Sun Yat-Sen University,Zhuhai 519000,China)
出处
《磁共振成像》
CAS
CSCD
北大核心
2023年第6期52-58,共7页
Chinese Journal of Magnetic Resonance Imaging
基金
国家自然科学基金(编号:82272104)
珠海市社会发展领域科技计划重点项目(编号:ZH22036201210066PWC)
中山大学附属第五医院临床研究IIT项目(编号:YNZZ2020-06)。
关键词
致密性骨炎
中轴型脊柱关节炎
骶髂关节
磁共振成像
osteitis condensans ilii
axial spondyloarthritis
sacroiliac joint
magnetic resonance Imaging
