This paper describes a comp.terized simulation system for minimally invasive vascular interventions using Virtual-Reality (VR) based technology. A virtual human patient is constructed using the Visible Human Data (VHD...
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This paper describes a comp.terized simulation system for minimally invasive vascular interventions using Virtual-Reality (VR) based technology. A virtual human patient is constructed using the Visible Human Data (VHD). A knowledge-based human vascular network is developed to describe human vascular anatomy with diseased lesions for different interventional applications. A potential field method is applied to model the interaction between the blood vessels and vascular catheterization devices. A haptic interface is integrated with the comp.ter simulation system to provide tactile sensations to the user during the simulated catheterization procedures. The system can be used for physician training and for pre-treatment planning of interventional vascular procedures.
A new method, based on a height function, to extract the shape of the topological graph of a freeform object was proposed. The proposed method was applied directly on a dense triangulated mesh for calculation of the 3...
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A new method, based on a height function, to extract the shape of the topological graph of a freeform object was proposed. The proposed method was applied directly on a dense triangulated mesh for calculation of the 3D isocurves and extraction of the topological graph. The comp.tation involved application of the marching cube algorithm, initial value conditions, partial differential equations and Lapalacian equations.
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