Study On Application Of Three-dimensional Visualization In Surgical Resection Of Primary Liver Cancer

Objective:To explore the curative effect and application value of three-dimensional visualization in surgical resection of primary liver cancer.Methods:A retrospective summary was made on 60 patients with primary liver cancer who were diagnosed in Jilin Provincial people’s Hospital from September 2016 to January2020.After screening,30 patients who met the criteria for inclusion and exclusion of the study were selected as the experimental group and 30 as the control group.In the experimental group,CT scan of the upper abdomen plus three-phase enhancement was performed before operation,and three-dimensional reconstruction technique was used to reconstruct the patient’s liver.The standard liver volume,tumor volume,pre-resected liver volume and residual liver volume were calculated and compared with the actual liver volume resected.The control group was treated with plain CT scan of the upper abdomen and three-phase enhancement before operation,and the routine two-dimensional imaging was used for preoperative surgical planning and surgical resection.Comparative analysis:the differences between the observation group and the control group in operation time,hepatic hilar occlusion time,intraoperative blood loss,postoperative 1,3,7 ALT index,complications and hospitalization time and so on.Results:The liver volume of three-dimensional visual pre-resection was compared with that of manual hepatectomy(125.63-959.14ml,(401.38±224.82),the difference is statistically significant(P<0.05).The Pearson’s correlation analysis between the simulated hepatectomy volume and the actual hepatectomy volume showed that there was a significant correlation between the simulated hepatectomy volume and the actual hepatectomy volume(r=0.986,p<0.001).The intraoperative blood loss in the experimental group and the control group was 423±128ml and 500±118ml,there is statistical significance(T=-2.406,P=0.019).At the time of operation,the experimental group(2.45±58)min was compared with the routine group(274±53)min,there was a statistically significant difference between the two groups(T=-2.050,P=0.045).There was no significant difference in hepatic hilar occlusion time between the two groups(P>0.05).The 1st and 3rd day after ALT in the experimental group was compared with that in the control group on the 1st and 3rd day after ALT,the differences were statistically significant(P<0.05).Comparison between the experimental group and the control group on the 7th day after ALT,there was no significant difference(P>0.05).The number of postoperative complications in the experimental group was significantly less than that in the control group,there was statistical significance(P<0.05).The overall incidence of postoperative complications was 16.7%in the experimental group and 46.7%in the control group,the difference was statistically significant(χ~2=6.239,P<0.05).There was a significant difference in postoperative hospital stay between the experimental group and the control group(T=-3.3553,P<0.05).Conclusion:Three-dimensional visualization technology used in surgical resection of primary liver cancer can reduce intraoperative bleeding,reduce postoperative complications,shorten postoperative hospital stay,improve the effectiveness and safety of surgery,so that patients can better benefit.