Preoperative ultrasound features as prognostic factors for @entity1 with XXXX .

@entity1 @entity82 @entity96 @entity5 @entity157 @entity715
PURPOSE: Ultrasound is the most common imaging tool used to scan the @entity5 of @entity96 @entity1 . However, very few studies have been performed to evaluate ultrasound imaging features for predicting @entity5 prognosis. Therefore, the goal of the current study was to evaluate preoperative ultrasound characteristics as prognostic factors that could affect survival rate after liver resection for @entity157 ( @entity157 ). MATERIALS AND METHODS: A total of 104 @entity157 @entity1 who underwent resection were retrospectively reviewed with regard to their clinical data, preoperative ultrasound characteristics, and survival rate. Preoperative ultrasound parameters included @entity82 , @entity5 site, size, echo pattern, portal vein @entity715 , @entity5 blood flow signal, peak systolic velocity (V max), and resistance index (RI). The Kaplan-Meier method was used to calculate survival. Pre-resection prognostic factors were assessed using univariate log-rank test and a multivariate Cox proportional hazards model. RESULTS: The median survival was 37  months. The 1-, 3-, and 5-year disease-free survival (DFS) rates were 78.85, 53.85, and 26.92  %, respectively, and the overall survival (OS) rates at 1, 3, and 5  years were 85.58, 69.23, and 46.15  %, respectively. On univariate analysis, shorter survival was associated with mixed echo pattern, larger @entity5 size, portal vein @entity715 , affluent flow signal, and higher V max. Application of the Cox multivariate proportional hazards model indicated that @entity5 size and blood flow signal in the @entity5 were independent prognostic factors. CONCLUSIONS: The overall survival for @entity157 @entity1 undergoing hepatic resection can be stratified on a sonographic basis of @entity5 size and intra-nodular vasculature. These prognostic factors may be useful to determine appropriate treatment for @entity157 @entity1 .
