颅内动静脉畸形的影像学评估RadiologicAssessmentofBrainArteriovenousMalformations:WhatCliniciansNeedtoKnow2011-08-18CaiWenchaoCaseReport•50y,men•Symptoms:1-yearhistoryofprogressiveleft-sidedweakness,,aggravated,accompaningbackpainandenuresisfor4month
•Examinations:MRI/ceMR/MRA/TCD/DSA••MRI:HighT2、T2FlairSI,LowT1SIonbothsideofparietalandfrontallobe(cerebralinfarction),whilehighDWISIontherightparietalandfrontallobe(subacutecerbralinfarction)
•MRA:noabnormalfindings
•CE-MRI和MRV:Multiplethickening、bendingsmallveininbothparietalandfrontallobeandventralofthepons
(Venousmalformation)
AndScalpsofttissue•SWI:•TCD:•DSA:multipleflowvoidsandcontrast-enhancedtubularstructuresthatinvolvesonbothsideofparietallobe、frontallobeandventralpons
Thenormalbrainparenchymaisinterspersedbetweentheabnormalvessels
Anteroposterioran