| Motivation |
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Cardiac surgery is a very complex procedure due to the complexity of the human heart and various heart diseases.
At present, no convenient computer tool is available for the surgeons to perform pre-operative planning and simulation. They often rely on manual drawing to visualize the surgical procedure and the expected results. This approach is not precise and is impossible to provide detailed information about the possible outcome of the surgical procedure.
To improve the precision and effectiveness of cardiac surgical planning, novel computer simulation systems that perform planning and simulation of cardiac surgeries are in demand. These systems should be able to help the surgeons to easily explore various surgical options, predict the surgical outcomes of different options, accurately evaluate the surgical outcomes and determine the best surgical options. |
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| Research Goal |
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Our research goal is to develop a predictive simulation system for cardiac surgery. This system visualizes 3D models reconstructed from patient's CT/MR images for the surgeon's reference. Given a small number of user inputs, the system can predict complex surgical results that involve soft tissues such as the heart and the blood vessels. With this kind of system, the surgeon does not have to go through all the surgical steps to see the expected surgical results. They can easily and efficiently explore various surgical options to develop a comprehensive surgical plan. |
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| Current Results |
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Smooth joining of blood vessels |
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Initial configuration |
Smooth joinning |
Red color: amount of deformation |
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Initial configuration |
Smooth join with
minimum twisting |
Smooth join with
undesirable twisting |
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Initial configuration |
Smooth join with
minimum twisting |
Smooth join with
undesirable twisting
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>>> demo video |
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Aetrial Switch Operation (partial results) |
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Initial configuration |
Aorta and pulmonary trunk are cut |
Aorta is joined to pulmonary root |
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| Researchers |
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Mr. Li Hao, Ph.D. student, Dept. of Computer Science, Natioanl University of Singapore |
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A/Prof. Leow Wee Kheng, Dept. of Computer Science, Natioanl University of Singapore |
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Prof. Ing-Sh Chiu, Dept. of Surgery, National Taiwan University Hospital |
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| Publications |
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H. Li, W. K. Leow, I.-S. Chiu, and S.-C. Huang. Deformation and Smooth Joining of Mesh Models for Predictive Cardiac
Surgical Simulation. In Proc. Int. Conf. on Geometric Modeling and Processing, 23-25 April 2008. |
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H. Li and W. K. Leow. Predictive Surgical Simulation for Planning Cardiac Surgeries. Innovation, 8(2): 32-33, 2008. |
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H. Li, W. K. Leow, Y. Qi, and I.-S. Chiu. Predictive Surgical Simulation of Aorta Reconstruction in Cardiac Surgery. In Proc. Int. Conf. on Medicient Meets Virtual Reality, 19-22 Jan 2009. |
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H. Li, W. K. Leow, and I.-S. Chiu. Modeling Torsion of Blood Vessels in Surgical Simulation and Planning. In Proc. Int. Conf. on Medicient Meets Virtual Reality, 19-22 Jan 2009. |
Publication Conference Thesis
