Application of LAVA CE-MRA in hepatectomy for huge hepatic tumor        WU Jian-wei*, QU Xian-li, GAO Hong, et al. *Department of Radiology, the 81st Hospital of PLA, Nanjing 210002,China
Corresponding author：WU Jian-wei, E-mail：wujianwei81@163.com
Abstract    Objective    To discuss the application of liver acquisition volume acceleration（LAVA）contrast-enhanced magnetic resonance angiography (CE-MRA) in hepatectomy for huge hepatic tumor. Methods    From January 2011 to October 2012, the hepatectomy was performed in 31 patients with hepatic tumors in 81st Hospital of PLA. The LAVA CE-MRA was performed before operation. The reconstruction of hepatic vasculature with multiplanar reconstruction (MPR) and measurement of remnant liver volume were performed to assess the feasibility of surgery. The results of liver function test before and after operation were also analyzed. Results    CE-MRA showed the hepatic artery, portal veins, hepatic veins and their main branches as well as their relationship with the tumors clearly in all patients. The right and left hepatectomy were performed in 10 patients, lobectomy in 7，segmentectomy in 9 and wedge resection in 5. The remnant liver volume was 38%～84% in 10 patients with hemibepatectomy. All patients were survival after operation. The recovery of liver function occurred 7 days postoperatively in 93.5% of patients. Conclusion    Combining with volumetry of remnant liver, LAVA CE-MRA which showed the vasculature of liver and their relationship with tumors clearly can play an important role in preoperative planning of liver resection.