Application and effect evaluation of 3D printing technology in hepatobiliary surgery teaching

Abstract

Objective Discuss the application of three dimensional(3D) printing model in the teaching of hepatobiliary surgery. Methods From September 2015 to June 2016, 60 eight year medical students were selected from who practiced in the Department of Hepatobiliary Surgery of Peking University People’s Hospital and they were randomly divided into study group and control group, 30 in each group. The traditional teaching methods were used in the 2 groups and the research group was assisted with 3D printing model. Selected the complex data MRI of section Ⅶ of liver cancer, hilar cholangiocarcinoma and pancreatic cancer from the patients in the department of hepatobiliary surgery, produced equal size 3D model by 3D printers. The total score and excellent rate of the 2 groups were compared, and the satisfaction degree was compared by questionnaire survey. Results (1)Students in the study group were significantly higher than those in the control group in the knowledge of liver cancer, pancreatic head cancer and hilar cholangiocarcinoma, there were significant differences between groups(均P<0.01). (2)The total scores of the control group and the study group were (82.1±1.8) and (91.9±2.0), respectively. There was no significant difference between the two groups (t=19.78, P=0.63). (3)The control group and study group satisfaction were 80.0% (24/30) and 96.7% (29/30), there was significant difference between the groups (χ2=4.043, P=0.044). Conclusions 3D printing technology is helpful for students to better understand and master the three-dimensional anatomy of the liver, bile duct, pancreas, and help to improve the teaching effect of the department of hepatobiliary surgery. Key words: Three-dimensional; Hepatobiliary surgery; Clerkship teaching; Applications; Effect evaluation