Sonographic features of umbilical vein recanalization for a Rex shunt on cavernous transformation of portal vein in children

Figure 2 Color Doppler ultrasonography of a 7-year-old boy after classic Rex shunt (splenic vein-left portal vein shunt). A: Color Doppler flow imaging (CDFI) showed stellate blood flow signal in the bypass vessel (splenic vein) 7 d after operation; B: CDFI showed that the internal blood flow signal of the bypass vessel filling was good; C: Flow velocity of the middle part of the bypass vessel was 19.6 cm/s. Arrow indicates splenic vein.