J Korean Med Sci.  2015 May;30(5):658-661. 10.3346/jkms.2015.30.5.658.

Virtual Endoscopic and Laparoscopic Exploration of Stomach Wall Based on a Cadaver's Sectioned Images

• Kwon K
• Shin DS
• Shin BS
• Park HS
• Lee S
• Jang HG
• Park JS
• Chung MS

• KMID: 2155482
• DOI: http://doi.org/10.3346/jkms.2015.30.5.658

Abstract

We intended to determine that virtual endoscopy and laparoscopy of the stomach based on serially sectioned cadaver images is beneficial. Therefore, the outlines between the gastric wall and lumen were traced using the new female data of the Visible Korean to build a volume model. While the outlines were expanded at appropriate thicknesses, the stomach was observed endoscopically and laparoscopically in comparison with a chosen sectioned image. Four layers (mucosa, submucosa, muscular layer, and serosa) of the stomach were discernible by their proper colors in the sectioned images. All layers except the submucosa were identified in the endoscopic and laparoscopic views by using consistent colors. The stepwise expansion of the outlines revealed thickness of each layer as well as whether the thickness was uniform. Our ideas and the Visible Korean images could be a robust resource of virtual reality learning for medical students and clinicians.

Keyword

Visible Human Projects; Stomach; Imaging; Three-Dimensional; Endoscopy; Laparoscopy

MeSH Terms

Adult
Cadaver
Female
*Gastroscopy
Humans
Imaging, Three-Dimensional
*Laparoscopy
Models, Anatomic
Stomach/*pathology

Figure

• 

  Fig. 1 Horizontal sectioned image of the stomach from inferior view. The posterior wall of the stomach is thickened due to gastric cancer (A). Zoomed-in image showing normal anterior wall, the layers of which are labeled (B).

• 

  Fig. 2 Endoscopic view (top row) and laparoscopic view (bottom row) of the stomach with its luminal outlines gradually expanded at a 2 mm thickness (left to right). The endoscopic view is from superior, while the laparoscopic view is from anterior.

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