摘要
Virchow-Robin间隙(Virchow-Robinspaces,VRS)即血管周围间隙,是中枢神经系统内的正常形态结构,具有一定的生理和免疫功能。VRS在MRI上的特征是边界光滑清楚,呈圆形或线形,与穿通动脉的行径相一致,在T1WI、T2WI和FLAIR序列上与脑脊液信号相同,无对比剂增强效应,无占位效应。VRS扩大见于高血压、糖尿病、脑动脉硬化、脑白质病变、脑积水、多发性硬化、强直性肌萎缩、中枢神经隐球菌感染、儿童脑发育性疾病等。
Virchow-Robin space （VRS）, also called perivascular space, is a normal morphological structure in the central nervous system, and of some physiological and immunological implications. On MRI the VRS appears as well-defined punctate or linear foci with a smooth margin, with signal intensity similar to that of CSF on T1WI, T2WI and FLAIR sequences, conforming to the path of penetrating arteries, not showing contrast enhancement or mass effect. The presence of the enlarged or dilated VRS has been associated with hypertension, diabetes, cerebral arteriosclerosis, cerebral white matter diseases, hydrocephalus, multiple sclerosis, myotonic dystrophy, cryptococcal infection in central nervous system, and children with mental retardation.
出处
《中国临床神经科学》
2006年第3期330-333,共4页
Chinese Journal of Clinical Neurosciences
