초록접수 현황
| 16F-043 | 포스터 발표 |
Feasibility of the 3D Printed Patient Specific Mock System to Test the Hemodynamic Energy during Extracorporeal Circulation
Chi Bum Ahn¹, Jin Woo Lee¹, Chang Hu Choi², Chul Hyun Park², Kook Yang Park², Kuk Hui Son²
¹Department of Molecular Medicine, Gachon University Graduate School of Medicine, Incheon, Korea, ²Department of Thoracic and Cardiovascular Surgery, Gachon University Gil Medical Center, Gachon University College of Medicine, Incheon, Korea
Background : Although many studies have addressed the advantages of pulsatile flow, such as, its superiority with respect to regional and global perfusion as compared with non-pulsatile flow, the benefits of pulsatile flow remain controversial. One reason for this controversy is that most studies evaluated the pulsatility with mock system in an in vitro model. The most serious disadvantage of the in vitro mock system is that the anatomical variation could not consider because most studies used straight PVC tubing line to mimic the patient aorta. In this study we tested the hemodynamic energy with a 3D printed, patient-specific, silicone aortic model.
Methods : A 3D replica of the ascending aorta was made using Mimics Base version 16 (Materialize, Leuven, Belgium) with CT images of a patient who had undergone aortic valve replacement. A 3D model of the ascending aorta was printed using a 3D using Acrylonitrile-Butadiene-Styrene (ABS) resin. To make a hollow, elastic model, we used commercially available silicone. The silicone mixture was painted evenly (about 3 mm thick) on the surface of the ABS mold. Donovan type mock systems were connected to the ascending aorta silicone model and a pulsatile pump. We measured hemodynamic energy on both carotid arteries of the aorta model.
Results : Every component of hemodynamic energy on both carotid arteries were different (Table 1).
Conclusion : To measure hemodynamic energy accurately according to patient in a consideration of anatomical variation in a mock circuit, we suggest a 3D printed patient specific aorta model provides a feasible option.
Methods : A 3D replica of the ascending aorta was made using Mimics Base version 16 (Materialize, Leuven, Belgium) with CT images of a patient who had undergone aortic valve replacement. A 3D model of the ascending aorta was printed using a 3D using Acrylonitrile-Butadiene-Styrene (ABS) resin. To make a hollow, elastic model, we used commercially available silicone. The silicone mixture was painted evenly (about 3 mm thick) on the surface of the ABS mold. Donovan type mock systems were connected to the ascending aorta silicone model and a pulsatile pump. We measured hemodynamic energy on both carotid arteries of the aorta model.
Results : Every component of hemodynamic energy on both carotid arteries were different (Table 1).
Conclusion : To measure hemodynamic energy accurately according to patient in a consideration of anatomical variation in a mock circuit, we suggest a 3D printed patient specific aorta model provides a feasible option.
첨부파일 : table 1.docx
책임저자: Kuk Hui Son
Department of Thoracic and Cardiovascular Surgery, Gachon University Gil Medical Center, Gachon University College of Medicine, Incheon, Korea
발표자: Kuk Hui Son, E-mail : dr632@gilhospital.com