Poster Session : PS 0771 ; Upper GI Tract : Stomach 3D Reconstruction and Volume Estimation for Bariatric Endoluminal Gastroplasty = Poster Session : PS 0771 ; Upper GI Tract : Stomach 3D Reconstruction and Volume Estimation for Bariatric Endoluminal Gastroplasty

다국어 초록 (Multilingual Abstract)

Background: The shape of stomach is variable among individuals and conditions, so bariatric procedures need to be individualized. If stomach is infl ated to certain level by endoscopy and internal space is 3D reconstructed, 3D model could be constructed with precision. In this study, we constructed 3D model of stomach by endoscopy. Methods: We conducted endoscopy for three patients. Stomach was infl ated to the predetermined level and internal dimensions were measured using regularly marked endoscopic guide-wire. 3D model was constructed using this information and the volume was estimated. In addition, we planned simulated sleeve operation and endo-luminal gastroplasty for predetermined volume reduction. Results: Stomach volume for each subject was calculated. 3D reconstructed stomach of one patient is shown (Fig 1) and the estimated volume of stomach was 3.7 liter. Resection line for sleeve operation were planned (Fig 2). Expected volume and shape change after the procedure were obtained. Conclusions: Bariatric procedures are conducted increasingly. Personal stomach volume change after intervention is invaluable parameter for predicting treatment response. Also computerized simulation for optimal procedure is very useful for operators. In the absence of techniques for individualized stomach 3D modeling and volume estimation, this study would be important basic research for future bariatric procedures.