Method and device for automatically detecting vulnerable plaques based on cardiovascular OCT images

A technology of vulnerable plaque and detection method, applied in the field of medical devices, can solve the problems of low detection speed, poor robustness, and inability to establish unified clinical standards, and achieves high detection accuracy, good robustness and detection speed. Effect

Active Publication Date: 2018-05-04
GENERAL HOSPITAL OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, clinical evaluation and analysis of cardiovascular vulnerable plaque requires doctors to spend a lot of time and energy on analyzing and judging OCT images; on the other hand, it cannot meet the needs of real-time analysis in clinical practice, and cannot establish a

Method used

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  • Method and device for automatically detecting vulnerable plaques based on cardiovascular OCT images
  • Method and device for automatically detecting vulnerable plaques based on cardiovascular OCT images
  • Method and device for automatically detecting vulnerable plaques based on cardiovascular OCT images

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Embodiment 1

[0060] See figure 1 , figure 1 It is a schematic flowchart of an automatic detection method for vulnerable plaques based on cardiovascular OCT images provided by an embodiment of the present invention. The detection method includes:

[0061] Step 1. Obtain an OCT image and establish an OCT image dataset;

[0062] Step 2, dividing the OCT image data set into an OCT training atlas and an OCT test atlas;

[0063] Step 3, using the OCT training atlas to train the model to be trained to form a post-training model;

[0064] Step 4, using the post-training model to perform vulnerable plaque detection and vulnerable plaque classification on the OCT test atlas;

[0065] Step 5, prompting the vulnerable plaque according to the classification result.

[0066] Among them, after step 1, it also includes:

[0067] Step 1.1. Perform coordinate transformation on the images in the OCT image data set, so as to convert the OCT image data set in the Cartesian coordinate system into an OCT i...

Embodiment 2

[0093] See Figure 2-Figure 14 and Figure 15(a)-Figure 15(c) , figure 2 A schematic diagram of an OCT image in a Cartesian coordinate system provided by an embodiment of the present invention, image 3 A schematic diagram of an OCT image in a polar coordinate system provided by an embodiment of the present invention, Figure 4 A feature map sub-region average pooling provided by the embodiment of the present invention, Figure 5 It is a schematic diagram of a step size selection result for generating candidate boxes provided by an embodiment of the present invention, Image 6 A schematic diagram of dimension change provided by an embodiment of the present invention, Figure 7 A schematic diagram of a loss function composition provided by an embodiment of the present invention, Figure 8 A schematic diagram of an original image in an OCT test atlas provided by an embodiment of the present invention, Figure 9 A schematic diagram of an OCT image to be detected in an OCT ...

Embodiment 3

[0163] See Figure 16 , Figure 16 It is a schematic structural diagram of an automatic vulnerable plaque detection device based on cardiovascular OCT images provided by an embodiment of the present invention. On the basis of the above embodiments, this embodiment will introduce the detection device of the present invention. The unit includes:

[0164] The detection unit, the probe interface unit, the optical signal processing unit, the digital signal processing unit, the storage unit and the display are electrically connected in sequence; wherein, the detection unit includes an optical fiber probe, and the optical fiber probe is used to collect blood vessel sample signals according to the action of the probe interface unit, And the sample signal is sent to the optical signal processing unit through the probe interface unit; the optical signal processing unit is used to process the sample signal to obtain an image frame; the digital signal processing unit includes a data ana...

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Abstract

The invention relates to a method and device for automatically detecting vulnerable plaques based on cardiovascular OCT images. The method includes acquiring a plurality of OCT images and establishingan OCT image data set; dividing the OCT image data set into an OCT training image set and an OCT test image set; using the OCT training image set to train a model to be trained, to form a post-training model; utilizing the post-training model to perform vulnerable plaque detection and vulnerable plaque classification on the OCT test image set; and prompting vulnerable plaques according to classification results. According to the method and device for automatically detecting vulnerable plaques based on the cardiovascular OCT images, the post-training model trained well is utilized to automatically extract features of the images, whether the vulnerable plaques are contained on the OCT images is automatically detected and recognized and the type of the vulnerable plaques is determined without manual intervention, so that a doctor can quickly and accurately analyze the OCT images. According to the method and device, detection can be performed in the complex OCT images, and the method anddevice are high in detection accuracy and have good robustness and detection speed.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an automatic detection method and device for vulnerable plaques based on cardiovascular OCT images. Background technique [0002] Vulnerable plaque refers to any plaque that is prone to thrombosis or can rapidly develop into a lesion. The capsule on the surface of the vulnerable plaque is very thin, and the plaque contains a lot of lipids, which is easy to rupture. For example, under the stimulation of emotional excitement, strenuous exercise, alcoholism, cold and other factors, the blood pressure of the human body will increase, the blood flow will violently impact the plaque, or the blood vessels will spasm. In these cases, the capsule of the vulnerable plaque will be damaged and ruptured. [0003] At present, there are many methods for vulnerable plaque detection, including coronary angiography, intravascular ultrasound, optical coherence tomography, etc., all of whic...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T3/40G06K9/62
CPCG06T3/4038G06T7/0012G06T2207/30101G06T2207/10101G06T2207/20081G06T2207/20084G06T2207/20021G06F18/2414G06F18/214
Inventor 陈韵岱曹一挥朱锐李嘉男金琴花荆晶
Owner GENERAL HOSPITAL OF PLA
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