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A method for extracting coronary arteries

An extraction method, a technique of coronary arteries, applied in the field of image processing, can solve problems such as the inability to automatically label specific main branches, and the inability to fully automatically extract specific main branches.

Active Publication Date: 2017-10-27
SHANGHAI UNITED IMAGING HEALTHCARE
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Problems solved by technology

[0013] However, after the initial point in the above method is obtained by the automatic detection algorithm, although the coronary artery can be fully automatically extracted and the coronary artery tree can be generated, it cannot automatically label the specific main branch, and the labeling process requires human-computer interaction.
In addition, for a specific main branch, this method needs to manually mark the starting point and end point, which cannot achieve the purpose of fully automatic extraction of a specific main branch

Method used

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  • A method for extracting coronary arteries
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Embodiment Construction

[0042] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar extensions without violating the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

[0043] Secondly, the present invention is described in detail by means of schematic diagrams. When describing the embodiments of the present invention in detail, for convenience of explanation, the schematic diagrams are only examples, which should not limit the protection scope of the present invention.

[0044] A method for extracting coronary arteries of the present invention will be described in detail below with reference to embodiments and accompanying drawings. The extraction method of the coronary artery of the embo...

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Abstract

The present invention provides a method for extracting coronary arteries, which method includes the following steps: (1) input a three-dimensional heart image, register the three-dimensional heart image and the coronary artery model, and determine the location of the coronary arteries in the three-dimensional heart image. Initial point, end point and direction of travel; (2) According to the initial point and direction of travel of the coronary artery, initialize the minimum cost path; (3) According to the direction of travel, if the minimum cost path travels to the coronary artery model the end point, then search the minimum cost path in reverse direction from the end point to generate the center line of the coronary artery; if the end point is not reached, optimize the minimum cost path and continue traveling until the end point is reached, and then Starting from the end point, the minimum cost path is searched in reverse direction to generate the center line of the coronary artery. This technical solution can not only fully automatically extract the centerline of the coronary artery, but also label the names of the coronary branches.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a method for extracting coronary arteries. Background technique [0002] In clinical applications, angiographic images are one of the main means for doctors to analyze cardiovascular diseases, so the extraction of coronary artery centerline is of great significance. [0003] The traditional coronary artery centerline extraction method is mainly based on the minimum cost path (please refer to [Desca-mps, T. and L. Cohen.: In: ECCV2000.vol.1843, 543-557. (2000)]), the starting point Obtained by manual annotation or automatic detection algorithm. The energy function E(C) of the minimum cost path method on path C can be expressed as: [0004] E(C)=∫ Ω (P(C(s))+ω)ds (1) [0005] Wherein, E(C) is the energy function on the minimum cost path C; s is the arc length parameter; x=C(s), represents a certain position on C(s), and P(x) is the Energy or cost at position x on the minimum co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/30
CPCG06T7/68G06T2207/10072G06T2210/41G06T3/14
Inventor 庄吓海刘浏兰添
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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