Morderate-large VSD: LVhypertrophy or bothventricular hypertrophyI1IⅢIaVRaVLaVF本
Morderate-large VSD: LV hypertrophy or both ventricular hypertrophy
PA pressure obviously increased:mainly RvhypertrophyⅢI1aVRavLavF人人V.1/2Va1/2V2112V41/2V1/2V61/2
PA pressure obviously increased: mainly RV hypertrophy
Chest X-raySmall VSD: pulmonary flow slightly increasednormal in lunghilar shadowPAsegment normal or mild heaveheart shape normal or mild large,CTR0.5-0.55aorticknob（主动脉结）reducing
Chest X-ray Small VSD: pulmonary flow slightly increased normal in lung hilar shadow PA segment normal or mild heave h ea rt shape normal or mild large, CTR 0.5-0.55 aortic knob(主动脉结) reducing
Chest X-ray+Morderate-large VSD:pulmonary flow obviously increasedlunghilar shadow augment,thickenhilar dancing in chest fluoroscopyPAsegment heaveheart shape obviously large,CTR0.56-0.7,both ventricular largemainly in LV,aortic knob reducing
Chest X-ray Morderate-large VSD: pulmonary flow obviously increased lung hilar shadow augment, thicken, hilar dancing in ch est fluoroscopy PA segment heave h ea rt shape obviously large, CTR 0.56-0.7, both ventricular large, mainly in LV, aortic knob reducing
Chest X-raypressure seriously increased:pulmonary circulatory flow lowerPAsegment seriously heavelungartery rough, twist, discontinue.like rat tail or residual rootheart shape not obviously large,mainlyRVlargeaortic knobreducing
Chest X-ray PA pressure seriously increased: pulmonary circulatory flow lower PA segment seriously heave lung a rtery rough, twist, discontinue, like r a t tail or residual root h ea rt shape not obviously large, mainly RV large aortic knob reducing