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Human body organ three-dimensional surface rebuilding method and system

A technology for three-dimensional surfaces and human organs, which is used in the field of reconstructing three-dimensional surfaces of human organs, and can solve the problems of simulating roughness and inability to reconstruct multi-bifurcation and complex organ cavities.

Active Publication Date: 2008-08-27
SHANGHAI MICROPORT EP MEDTECH CO LTD
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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a method and system for reconstructing the three-dimensional surface of human organs, so as to solve the problem that the existing cavity surface reconstruction method is not smooth and cannot reconstruct multi-branched complex organ cavities

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  • Human body organ three-dimensional surface rebuilding method and system
  • Human body organ three-dimensional surface rebuilding method and system
  • Human body organ three-dimensional surface rebuilding method and system

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Embodiment Construction

[0058] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0059] The invention provides a method and system for reconstructing the three-dimensional surface of human organs, which is suitable for reconstructing organ cavities with sparse sampling points, can accurately reconstruct multi-branch complex organ surface models, and can obtain very smooth curved surface models, accurate Approximate the geometry of the original cavity. The invention has an important application in image-guided minimally invasive surgery. The lumen model constructed can be completed at the initial stage of surgery, and can provide doctors with the position of the catheter during the subsequent surgery, improving the success rate of surgery and reducing surgery time.

[0060] The implementation process of the pre...

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Abstract

The invention discloses a method for reconstructing three-dimensional surface of human organs and a system thereof, aiming to solve the problems in the prior cavity surface reconstruction method, including rough reconstruction surface and inability to reconstruct surface of multi-furcate complex organ cavity. The method comprises the following steps of collecting spatial position information of a plurality of points on the surface of an organ; adding one or more restriction points containing spatial position information; constructing and solving a function according to the spatial position information at the sampling point and the restriction points; and performing isosurface extraction of all points with the same functional value of the sampling point to obtain a reconstructed surface of the organ. The inventive method and system can accurately reconstruct the surface model of multi-furcate complex organs, and can obtain smooth surface model, which nearly approaches to the geometry of the original cavity.

Description

technical field [0001] The invention relates to graphic image simulation technology, in particular to a method and system for reconstructing the three-dimensional surface of human organs. Background technique [0002] Cavity reconstruction technology is very important in the medical surgical treatment process, and the accuracy of cavity modeling directly affects the surgical effect. For example, in arrhythmia radiofrequency ablation surgery, cardiac cavity mapping is to determine the abnormal electrical conduction pathway in the heart by detecting the electrophysiological information of various points in the cardiac cavity; three-dimensional electroanatomical mapping of the cardiac cavity is based on the cardiac cavity mapping At the same time, the spatial position information of each point in the heart cavity is collected, the three-dimensional geometric model of the heart cavity is constructed, and the electrophysiological information of the corresponding point is superimp...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B19/00G06T17/20A61B34/10
Inventor 叶铭刘道志孙毅勇
Owner SHANGHAI MICROPORT EP MEDTECH CO LTD
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