The current role of intraoperative ultrasound during the resection of  XXXX : A retrospective cohort study.

@entity1 @entity5 @entity14
INTRODUCTION: Liver resections with negative margins improve survival in @entity1 with @entity14 ( @entity14 ). Intraoperative ultrasound (IOUS) is a valuable tool that gives information about lesions that ultimately changes surgical strategy to ensure complete removal, which subsequently improves disease free survival (DFS). METHODS: A retrospective review of @entity1 who underwent a resection for @entity14 from 2009 to 2012 was completed to determine the impact of IOUS. RESULTS: A total of 103 @entity1 had a hepatic resection for @entity14 . All @entity1 had preoperative imaging to assist with operative planning. IOUS was performed in 72 cases. Surgical strategy changed in 31 (43.1%) cases with IOUS, compared to three (9.7%) with no IOUS (P  <  0.001). A new lesion was detected in 13 (18.1%) of the cases. A higher proportion of nonanatomic liver resections were performed in the IOUS group (N  =  27, 37.5%) compared to the non-IOUS group (N  =  6, 19.4%) (P  =  0.07). CONCLUSION: Achievement of a negative resection margin was comparable between the two groups. However, there was a trend toward improved DFS in the IOUS group. Despite advances in preoperative imaging, IOUS demonstrates utility in providing novel information that allows removal of the entire @entity5 burden, using parenchymal-preserving techniques when feasible, leading to improved DFS.
