An OCT image-based bifurcated blood vessel automatic identification method

An automatic identification and bifurcation technology, which is applied in the field of medical image processing, can solve the problems of incomplete judgment of false positives, poor robustness, and high false positive rate, so as to eliminate false positive judgments, improve accuracy, and avoid false positive judgments. Effect

Active Publication Date: 2018-05-29
中科微光医疗研究中心(西安)有限公司
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Problems solved by technology

However, the algorithm relies heavily on the detection of shadows in the binary image, and shadows depend on the threshold setting in the binary image, so the robustness of the algorithm is poor
[0005] In addition, in other existing technologies, the guide wire, catheter, and vessel contour need to be detected before bifurcation detection, and these steps need to use Dijkstra's algorithm separately, which is inefficient; and its judgment on false positives is not comprehensive , the misjudgment rate is high

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  • An OCT image-based bifurcated blood vessel automatic identification method
  • An OCT image-based bifurcated blood vessel automatic identification method
  • An OCT image-based bifurcated blood vessel automatic identification method

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Embodiment 1

[0065] Such as Figure 1-Figure 7 As shown, figure 1 Fig. 2(a) is a transition diagram provided by an embodiment of the present invention; Fig. 2(b) is a binary image provided by an embodiment of the present invention; image 3 Reconstructing the main blood vessel area in the blood vessel contour provided by an embodiment of the present invention; Figure 4 Is a schematic diagram of a simulation of detecting a bifurcation provided by an embodiment of the present invention; Figure 5 Is a schematic diagram of a bifurcated blood vessel provided by an embodiment of the present invention; Image 6 It is a schematic diagram of the bifurcation provided by an embodiment of the present invention when the bifurcation is at the beginning of the entire bifurcation; Figure 7 This is a schematic diagram of a lumen with a bifurcated vessel mark provided by an embodiment of the present invention. The embodiment of the present invention provides a method for automatically identifying bifurcated ...

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Abstract

The invention relates to an OCT image-based bifurcated blood vessel automatic identification method. The method comprises the steps of: firstly acquiring an IVOCT image in a guide wire pullback periodby using an optical coherence tomography system and an angiography system; secondly, determining a blood vessel bifurcation and determining a bifurcation position via a detected blood vessel contour;thirdly, displaying the bifurcated blood vessel. According to the embodiments, bifurcation pairs are acquired through multiple times of screening, and then bifurcation determination is performed andfalse positive is removed through a special method, so that the judgment accuracy is improved, bifurcated blood vessels can be detected and marked rapidly and accurately, and the working efficiency isincreased.

Description

Technical field [0001] The invention belongs to the medical image processing field and the medical detection technical field, and specifically relates to an OCT image-based automatic identification method for bifurcated blood vessels. Background technique [0002] Before stent implantation, accurate measurement of the vascular lumen is very important, which determines the selection of stent size and the optimal position of stent placement. If the size of the stent is not appropriate, it may lead to poor stent adherence. The selection of the optimal position for stent implantation not only needs to consider the smallest lumen area, but also the bifurcated vessels. If a bifurcated vessel is covered by a stent, there is a high risk of pathological changes, such as restenosis and obstruction of blood flow to the bifurcated vessel. Therefore, before stent implantation, it is very important to detect bifurcation vessels and measure main vessels. [0003] Because of its relatively high ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/11G06T7/174A61B5/00
CPCA61B5/0066A61B5/0084A61B5/489G06T7/0012G06T7/11G06T7/174A61B5/72A61B2090/3735G06T2207/30101G06T2207/10101
Inventor 朱锐李嘉男曹一挥薛婷
Owner 中科微光医疗研究中心(西安)有限公司
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