中国医学创新
中國醫學創新
중국의학창신
MEDICAL INNOVATION OF CHINA
2015年
17期
47-49
,共3页
孙沄%莫信%曾琼莉%汤小俐%黄海彬
孫沄%莫信%曾瓊莉%湯小俐%黃海彬
손운%막신%증경리%탕소리%황해빈
扩大的血管周围间隙%核磁共振技术%部位
擴大的血管週圍間隙%覈磁共振技術%部位
확대적혈관주위간극%핵자공진기술%부위
Enlarged perivascular spaces%Magnetic resonance imaging%Position
目的：观察总结扩大的血管周围间隙（EPVS）在磁共振上的表现特点，以提高诊断率。方法：随机选择磁共振检查显示有EPVS的患者90例，综合分析其磁共振影像形态、大小、部位、边界、信号、占位效应等表现。结果：90例患者EPVS均为双侧多发，左右无明显差异，呈圆形、卵圆形或线状、管状，边界清楚，与穿支血管走行一致。在T1WI、T2WI和FLAIR序列上与脑脊液信号相同（T1WI为低信号，T2WI为高信号，FLAIR序列为低信号），无对比剂增强效应和占位效应。发生部位包括基底节区、半卵圆中心及皮质下、桥脑、小脑、丘脑及脑室旁等。数量随年龄增长而增多。EPVS分级以1分最多见。随访患者均未发现明显变化。结论：EPVS数量随年龄增长而增多，最多见于基底节区、半卵圆中心及皮质下，呈圆形、卵圆形或线状、管状，边界清楚，在MR成像各种序列显示与脑脊液信号一致。
目的：觀察總結擴大的血管週圍間隙（EPVS）在磁共振上的錶現特點，以提高診斷率。方法：隨機選擇磁共振檢查顯示有EPVS的患者90例，綜閤分析其磁共振影像形態、大小、部位、邊界、信號、佔位效應等錶現。結果：90例患者EPVS均為雙側多髮，左右無明顯差異，呈圓形、卵圓形或線狀、管狀，邊界清楚，與穿支血管走行一緻。在T1WI、T2WI和FLAIR序列上與腦脊液信號相同（T1WI為低信號，T2WI為高信號，FLAIR序列為低信號），無對比劑增彊效應和佔位效應。髮生部位包括基底節區、半卵圓中心及皮質下、橋腦、小腦、丘腦及腦室徬等。數量隨年齡增長而增多。EPVS分級以1分最多見。隨訪患者均未髮現明顯變化。結論：EPVS數量隨年齡增長而增多，最多見于基底節區、半卵圓中心及皮質下，呈圓形、卵圓形或線狀、管狀，邊界清楚，在MR成像各種序列顯示與腦脊液信號一緻。
목적：관찰총결확대적혈관주위간극（EPVS）재자공진상적표현특점，이제고진단솔。방법：수궤선택자공진검사현시유EPVS적환자90례，종합분석기자공진영상형태、대소、부위、변계、신호、점위효응등표현。결과：90례환자EPVS균위쌍측다발，좌우무명현차이，정원형、란원형혹선상、관상，변계청초，여천지혈관주행일치。재T1WI、T2WI화FLAIR서렬상여뇌척액신호상동（T1WI위저신호，T2WI위고신호，FLAIR서렬위저신호），무대비제증강효응화점위효응。발생부위포괄기저절구、반란원중심급피질하、교뇌、소뇌、구뇌급뇌실방등。수량수년령증장이증다。EPVS분급이1분최다견。수방환자균미발현명현변화。결론：EPVS수량수년령증장이증다，최다견우기저절구、반란원중심급피질하，정원형、란원형혹선상、관상，변계청초，재MR성상각충서렬현시여뇌척액신호일치。
Objective:To summarize the MRI features of enlarged perivascular spaces for improvement of diagnostic rate. Method:90 EPVS patients with MRI indication were selected randomly,their MRI features in respect of shape,size,position, boundary,signal and space occupying effect analyzed.Result:Multiple EPVS were visible bilaterally for all the 90 cases and there had no remarkable difference between the right and left side.The EPVS feature round,oval,linear or tubular shapes with clear boundary and the same direction as the perforator vessels.Their signals were the same as those of the cerebrospinal fluid on T1WI,T2WI and FLAIR sequences (low signal for T1WI,high signal for T2WI and low signal for FLAIR) without the enhancement effect of contrast agent and the space occupying effect.The EPVS occur at the basal ganglia region,the centrum semiovale and subcortex,the pontine,the cerebellum,the thalamencephalon and the periventricle,and their amount increases along with the age.Rank 1 was common in EPVS rating and no obvious change was found in the follow-up cases. Conclusion:The EPVS amount increases along with the age,they mainly occur at the basal ganglia region as well as the centrum semiovale and subcortex in round,oval,linear or tubular shape with clear boundary,and their signals are the same as those of the cerebrospinal fluid on MRI sequences.
