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Technical Briefs

A Freehand Vascular Designing and Modeling Tool for Surgery Simulation

[+] Author and Article Information
J. X. Guo, Q. Meng, S. Li, Y. P. Chui

Department of Computer Science and Engineering,  The Chinese University of Hong Kong, Shatin, Hong Kong

S. C. H. Yu

Department of Diagnostic Radiology and Organ Imaging,  Chinese University of Hong Kong, Shatin, Hong Kong, 999077

P. A. Heng

Department of Computer Science and Engineering,  The Chinese University of Hong Kong, Shatin, Hong Kong; School of Computer Science and Engineering,  University of Electronic Science and Technology of China, Chengdu Sichuan, 610054, China

J. Comput. Inf. Sci. Eng 11(3), 034501 (Aug 10, 2011) (5 pages) doi:10.1115/1.3615973 History: Received November 15, 2009; Revised December 12, 2010; Published August 10, 2011; Online August 10, 2011

This paper presents an intuitive sketching tool for human-computer interactively designing and modeling the vascular structure. Our system supports freehand outlining of the initial vascular structure through a 3D user interface, which is capable of modeling tubular vessel segments as well as bifurcations. The editing capability can be used for completing partially segmented vascular information such as the topology and radius, as well as designing normal vascular structure or pathological vascular structure such as the aneurysm and stenosis for medical simulations curriculum. Our tool may also be used in the various semi-automatic initialization steps for segmentation and registration processes such as the positioning of 3D seed and land-marking of vessels on top of different modalities. The improved parallel frame approach is used for sweeping surfaces along the composed curve of vascular tree such that the vascular structure can be easily and well visualized as a tube model.

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Copyright © 2011 by American Society of Mechanical Engineers
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Figures

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Figure 1

The overview of our system

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Figure 2

Vesselxml structure

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Figure 3

(a) Feature point selection and (b) feature point update

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Figure 4

(a) The Frenet–Serret frame on tubular structure, (b) a series of frames along the curve, and (c) thickening surface of the curve

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Figure 5

(a) Inner Bezier triangle and (b) geometric model of the bifurcation grid

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Figure 6

(a) Twisting frame, (b) smooth frame after blending, and (c) the normal and binormal vectors of two frames on the same plane

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Figure 7

(a) and (b) Adding a bifurcation to vascular tree, (c) and (d) editing the radius of a branch, (e, g) generating vascular trees, and (f) and (h) thickening vascular trees

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Figure 8

Add pathological cases to normal vascular: (a) and (c) a normal vascular tree in human’s head, (b) adding an aneurysm, and (d) designing a stenosis case

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Figure 9

A 3dmax 3-view interface

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