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Proceedings Paper

Computer-aided 3D-shape construction of hearts from CT images for rapid prototyping
Author(s): Masayuki Fukuzawa; Yutaro Kato; Nobuyuki Nakamori; Seiichiro Ozawa; Isao Shiraishi
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Paper Abstract

By developing a computer-aided modeling system, the 3D shapes of infant's heart have been constructed interactively from quality-limited CT images for rapid prototyping of biomodels. The 3D model was obtained by following interactive steps: (1) rough region cropping, (2) outline extraction in each slice with locally-optimized threshold, (3) verification and correction of outline overlap, (4) 3D surface generation of inside wall, (5) connection of inside walls, (6) 3D surface generation of outside wall, (7) synthesis of self-consistent 3D surface. The manufactured biomodels revealed characteristic 3D shapes of heart such as left atrium and ventricle, aortic arch and right auricle. Their real shape of cavity and vessel is suitable for surgery planning and simulation. It is a clear advantage over so-called "blood-pool" model which is massive and often found in 3D visualization of CT images as volume rendering perspective. The developed system contributed both to quality improvement and to modeling-time reduction, which may suggest a practical approach to establish a routine process for manufacturing heart biomodels. Further study on the system performance is now still in progress.

Paper Details

Date Published: 14 February 2012
PDF: 6 pages
Proc. SPIE 8290, Three-Dimensional Image Processing (3DIP) and Applications II, 829017 (14 February 2012); doi: 10.1117/12.908323
Show Author Affiliations
Masayuki Fukuzawa, Kyoto Institute of Technology (Japan)
Yutaro Kato, Kyoto Institute of Technology (Japan)
Nobuyuki Nakamori, Kyoto Institute of Technology (Japan)
Seiichiro Ozawa, Kyoto Prefectural Univ. of Medicine (Japan)
Isao Shiraishi, National Cerebral and Cardiovascular Ctr. (Japan)


Published in SPIE Proceedings Vol. 8290:
Three-Dimensional Image Processing (3DIP) and Applications II
Atilla M. Baskurt; Robert Sitnik, Editor(s)

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