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

Figure 1 Color Doppler ultrasonography of a 9-year-old boy after recanalized umbilical vein as a conduit for Rex shunt (gastric coronary vein-umbilical vein shunt). A: Color Doppler flow imaging (CDFI)showed intermittent blood flow signal in the bypass vessel (gastric coronary vein) 7 d after operation; B: CDFI showed that the bypass vessel was well filled with blood flow signals after clinical anticoagulation treatment for 3 mo. Long arrow indicates umbilical vein and short arrow indicates gastric coronary vein.