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Blood vessel extraction method

An extraction method and blood vessel technology, applied in the field of medical image processing, can solve problems such as poor robustness and inability to extract the rotational span of the vertebral artery, and achieve the effects of improving accuracy and speed, reducing influence, and improving accuracy and robustness.

Active Publication Date: 2017-01-18
SHANGHAI UNITED IMAGING HEALTHCARE
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Problems solved by technology

The robustness of this method is poor, different parameters are required for blood vessel extraction of different data, and at the same time, this method cannot extract vertebral arteries with a large rotation span

Method used

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Embodiment Construction

[0046] 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.

[0047] 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. To make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described below in conjunction with the accompanying drawings and embodiments...

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Abstract

The invention provides a blood vessel extraction method comprising the steps that a medical image is acquired, and at least one blood vessel area is acquired through registration with a standard image; multiple seed points of the blood vessel areas are determined; the blood vessel enhancement image of the medical image is acquired by using a classifier method; the center line between the seed points is calculated based on a level set algorithm in the blood vessel enhancement image; and the blood vessels are grown based on the central line and the blood vessel extraction result is acquired. The blood vessels are extracted on the blood vessel enhancement image acquired by using the classifier so that the accuracy and the robustness of the result can be effectively improved.

Description

【Technical field】 [0001] The invention relates to the field of medical image processing, in particular to a blood vessel extraction method. 【Background technique】 [0002] Vascular imaging techniques include CT angiography (CTA, CT angiography), magnetic resonance angiography (Magnetic Resonance Angiography, MRA), and MR non-contrast imaging. Vascular imaging technology is one of the important methods for diagnosing vascular diseases at present, and it is mainly used in clinical diagnosis and treatment of various vascular diseases, such as aneurysm, vascular stenosis, and vascular calcification. [0003] Head and neck arteries mainly include common carotid artery (CCA), internal carotid artery (ICA), external carotid artery (ECA), vertebral artery (VA), basilar artery (BA) and so on. The common carotid artery bifurcates into internal and external carotid arteries, such as Figure 1a with 1b Shown in medical images containing the vertebral and internal carotid arteries, res...

Claims

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Application Information

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IPC IPC(8): G06T7/10
CPCG06T2207/10081G06T2207/10088G06T2207/20081G06T2207/30101
Inventor 毛玉妃王晓东于文君王策
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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