Park JE, et al. -In children with clinically suspicious hepatic veno-occlusive disease (VOD), the prognostic value of ultrasonography after hematopoietic stem cell transplantation (HSCT) was evaluated. This study was carried out in 216 children who underwent HSCT. The findings suggested that the presence of reversed flow in portal vein, increased peak systolic velocity of hepatic artery, monophasicity of hepatic vein, hepatomegaly, gallbladder wall thickness, and ascites were significantly correlated with progression to VOD in children with clinically suspicious VOD after HSCT.