眼眶MR常规平扫、增强扫描及DWI序列扫描对眼眶占位性病变的诊断价值  

The Diagnostic Value of Conventional Plain Scan,Enhanced Scan,and DWI Sequence Scan of Orbital MR in Orbital Space Occupying Lesions

作　　者：高贯金 GAO Guan-jin(Medical Imaging Department,Puyang Second People's Hospital(Ophthalmology Hospital),Puyang 457000,Henan Province,China)

机构地区：[1]濮阳市第二人民医院(市眼科医院)医学影像科,河南濮阳457000

出　　处：《罕少疾病杂志》2025年第4期18-20,共3页Journal of Rare and Uncommon Diseases

摘　　要：目的探讨眼眶磁共振(MR)常规平扫、增强扫描及弥散加权成像(DWI)序列扫描对眼眶占位性病变的诊断价值。方法选择2021年1月至2023年7月濮阳市第二人民医院接诊的眼眶占位性病变患者78例(83眼)作为研究对象,均行眼眶MR常规平扫、增强扫描及DWI序列扫描。对比良、恶性眼眶占位性病变分布情况及其MR征象、ADC值差异。结果78例眼眶占位性病变经病理诊断证实为良性病变54例,恶性病变24例;恶性病变混合区分布比例高于良性病变,肌锥内区分布比例低于良性病变,有统计学差异(P<0.05);良、恶性眼眶占位性病变视神经鞘区、骨膜外区、肌锥外区分布比例比较,无统计学差异(P>0.05);恶性病变形态欠规则、边界毛糙、包绕或压迫眼球及骨质破坏、T2WI信号强度低于良性病变,有统计学差异(P<0.05);恶性病变1min强化率为(153.58±42.11)、最大上升斜率为(4.34±1.21),高于良性病变的(103.68±30.55)、(0.87±0.26),有统计学差异(P<0.05);恶性病变ADC值低于良性病变,有统计学差异(P<0.05)。结论眼眶MR常规平扫、增强扫描及DWI序列扫描均可有效鉴别区分眼眶占位性病变良恶性,指导治疗。Objective To explore the diagnostic value of conventional plain scan,enhanced scan,and diffusion weighted imaging(DWI)sequence scan of orbital magnetic resonance(MR)in orbital space occupying lesions.Methods 78 patients(83 eyes)with orbital space occupying lesions who were admitted to the Second People's Hospital of Puyang City from January 2021 to July 2023 were selected as the study subjects,all of whom underwent routine orbital MR plain scan,enhanced scan,and DWI sequence scan.Compare the distribution of benign and malignant orbital space occupying lesions,as well as the differences in MR signs and ADC values.Results Among the 78 cases of orbital space occupying lesions,54 were confirmed as benign lesions and 24 as malignant lesions through pathological diagnosis.The proportion of mixed zone distribution in malignant lesions was higher than that in benign lesions,while the proportion of intramuscular zone distribution was lower than that in benign lesions,with statistical differences(P<0.05).There was no statistically significant difference in the distribution of optic nerve sheath,periosteal area,and extrapyramidal area between benign and malignant orbital space occupying lesions(P>0.05).Malignant lesions have irregular morphology,rough boundaries,enveloping or compressing the eyeball,bone destruction,and lower signal intensity than benign lesions,with statistical differences(P<0.05).The 1-minute enhancement rate of malignant lesions was(153.58±42.11)and the maximum ascending slope was(4.34±1.21),which was higher than that of benign lesions(103.68±30.55)and(0.87±0.26),with statistical differences(P<0.05).The ADC value of malignant lesions is lower than that of benign lesions,with a statistical difference(P<0.05).Conclusion Conventional plain scan,enhanced scan,and DWI sequence scan of orbital MR can effectively differentiate between benign and malignant orbital occupying lesions,guiding treatment.

关 键 词：眼眶占位性病变 磁共振 弥散加权成像(DWI) 

分 类 号：R445.2[医药卫生—影像医学与核医学]