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World Journal of Surgery

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01-08-2016 | Original Scientific Report

Do 3D Printing Models Improve Anatomical Teaching About Hepatic Segments to Medical Students? A Randomized Controlled Study

Authors: Xiangxue Kong, Lanying Nie, Huijian Zhang, Zhanglin Wang, Qiang Ye, Lei Tang, Wenhua Huang, Jianyi Li

Published in: World Journal of Surgery | Issue 8/2016

Abstract

Background

It is a difficult and frustrating task for young surgeons and medical students to understand the anatomy of hepatic segments. We tried to develop an optimal 3D printing model of hepatic segments as a teaching aid to improve the teaching of hepatic segments.

Methods

A fresh human cadaveric liver without hepatic disease was CT scanned. After 3D reconstruction, three types of 3D computer models of hepatic structures were designed and 3D printed as models of hepatic segments without parenchyma (type 1) and with transparent parenchyma (type 2), and hepatic ducts with segmental partitions (type 3). These models were evaluated by six experts using a five-point Likert scale. Ninety two medical freshmen were randomized into four groups to learn hepatic segments with the aid of the three types of models and traditional anatomic atlas (TAA). Their results of two quizzes were compared to evaluate the teaching effects of the four methods.

Results

Three types of models were successful produced which displayed the structures of hepatic segments. By experts’ evaluation, type 3 model was better than type 1 and 2 models in anatomical condition, type 2 and 3 models were better than type 1 model in tactility, and type 3 model was better than type 1 model in overall satisfaction (P < 0.05). The first quiz revealed that type 1 model was better than type 2 model and TAA, while type 3 model was better than type 2 and TAA in teaching effects (P < 0.05). The second quiz found that type 1 model was better than TAA, while type 3 model was better than type 2 model and TAA regarding teaching effects (P < 0.05). Only TAA group had significant declines between two quizzes (P < 0.05).

Conclusions

The model with segmental partitions proves to be optimal, because it can best improve anatomical teaching about hepatic segments.

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Title: Do 3D Printing Models Improve Anatomical Teaching About Hepatic Segments to Medical Students? A Randomized Controlled Study
Authors: Xiangxue Kong
Lanying Nie
Huijian Zhang
Zhanglin Wang
Qiang Ye
Lei Tang
Wenhua Huang
Jianyi Li
Publication date: 01-08-2016
Publisher: Springer International Publishing
Published in: World Journal of Surgery / Issue 8/2016
Print ISSN: 0364-2313
Electronic ISSN: 1432-2323
DOI: https://doi.org/10.1007/s00268-016-3541-y

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Do 3D Printing Models Improve Anatomical Teaching About Hepatic Segments to Medical Students? A Randomized Controlled Study

Abstract

Background

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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