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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 applied in the field of reconstructing three-dimensional surfaces of human organs, and can solve the problems of inability to reconstruct multi-branched complex organ cavities, and simulation of non-smoothness.

Active Publication Date: 2010-02-17
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

[0060] In order to make the above objectives, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0061] The present 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 the surface model of multi-branch complex organs, and can obtain very smooth curved surface models. Approximate the geometry of the original cavity. The invention has an important application in image-navigated minimally invasive surgery. The constructed lumen model can be completed in the early stage of the operation, and the position of the catheter can be provided to the doctor during the subsequent operation, which improves the success rate of the operation and reduces the operation time.

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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 aplurality 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 ofthe 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 ofthe original cavity.

Description

Technical field [0001] The present 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 medical surgical treatment, 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 pathways in the heart by detecting electrophysiological information at various points in the heart cavity; three-dimensional electroanatomical mapping of the cardiac cavity is based on the cardiac cavity mapping , Collect the spatial position information of each point in the heart cavity at the same time, construct a three-dimensional geometric model of the heart cavity, and superimpose the electrophysiological information of the corresponding point as the basis for the doc...

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Application Information

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Patent Type & Authority Patents(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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