NDLI: Three-dimensional reconstruction of ventricle from biplane angiocardiograms via equal-divisor surface

Content Provider	IEEE Xplore Digital Library
Author	Sun, Y.N. Li, C.C. Krishnaiah, P.R. Reddy, P.S.
Copyright Year	1971
Abstract	The measurement of left ventricular function is greatly enhanced when the three-dimensional shape of the ventricle can be closely assessed by biplane angiocardiograms taken from two perpendicular X-ray camera sets. The ventricle shape can be reconstructed by dividing each of the two orthogonal projection images into corresponding slices, processing each pair of corresponding slices to form a binary cross-sectional image, and stacking up these parallel cross-sectional images. Existing methods of reconstructing cross sections often involve assumptions of elliptic shape or convex symmetry. Recently, a new approach was proposed to reconstruct each cross section by estimating an equal-divisor curve instead of estimating the boundary directly. The approach works well as long as a certain regularity condition (a much relaxed assumption) is satisfied. The notion is extended to the equal-divisor surface of a three-dimensional object with two orthogonal projections. A method for the direct three-dimensional reconstruction of the left ventricle (instead of piling up the parallel reconstructed two-dimensional cross sections) is given.<>
Starting Page	1666
Ending Page	1671
Page Count	6
File Size	688182
File Format	PDF
ISSN	00189472
Volume Number	19
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1989-11-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image reconstruction Surface reconstruction Three dimensional displays Two dimensional displays Sensor arrays Heart Sun Shape measurement X-ray imaging Cameras
Content Type	Text
Resource Type	Article
Subject	Engineering

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