Unlock instant, AI-driven research and patent intelligence for your innovation.

Automatic cardiac mitral valve annulus detecting method

An automatic detection and heart technology, applied in medical science, sonic diagnosis, infrasonic diagnosis, etc., can solve the problems of a large amount of manpower and material resources, large image database, etc.

Inactive Publication Date: 2015-04-01
SHANGHAI JIAOTONG UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above research work requires a large number of image databases, it takes several years to manually collect a large number of training samples, and the implementation process requires a lot of manpower and material resources

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Automatic cardiac mitral valve annulus detecting method
  • Automatic cardiac mitral valve annulus detecting method
  • Automatic cardiac mitral valve annulus detecting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0023] The application environment of the following example is a Philips Sonos7500 real-time three-dimensional ultrasonic diagnostic instrument and an Intel Pentium IV2.4GHz, 2G memory desktop computer, provided that the three-dimensional matrix (matrix) probe is located at the left apex to collect Full-volume data can be clearly distinguished Difference of mitral valve apparatus from background. For further details, take the example of full volume data collected during any whole cardiac cycle:

...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an automatic cardiac mitral valve annulus detecting method in the technical field of computer application. The automatic cardiac mitral valve annulus detecting method includes the steps: (1) rapidly recognizing valve annulus candidate characteristic points by an additive minimum-kernel support vector machine classifier based on local context characteristics; (2) calculating local weighted density of the candidate characteristic points by the aid of a weighted average filter; and (3) adaptively searching a threshold value of the local weighted density by a dichotomy method, calculating a central point of a continuous area, and calculating the characteristic points of a clustering center serving as a final mitral valve annulus by the aid of a nearest neighbor algorithm. The automatic cardiac mitral valve annulus detecting method has the advantages that automatic detection of a mitral valve annulus in an ultrasonic cardiogram is achieved, and diagnosis and quantitative analysis of mitral valve apparatus lesions is assisted.

Description

technical field [0001] The present invention relates to a method in the field of computer application technology, in particular to an automatic detection method of the heart mitral valve ring. Background technique [0002] Echocardiography is currently the main diagnostic imaging tool for the diagnosis of cardiac mitral valve disease. The researchers found that mitral regurgitation is closely related to the deformation of the valve annulus. In clinical diagnosis and research, the mitral valve function is evaluated by manually measuring morphological parameters such as the area, circumference and diameter of the mitral valve annulus. Since it is difficult to identify the mitral valve ring, identifying the feature points of the mitral valve ring one by one from echocardiographic images is a tedious task even for skilled doctors. [0003] After searching the prior art documents, it was found that Ionasec et al. published ("Patient-Specific Modeling and Quantification of the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/00
Inventor 宋薇徐伟杨新
Owner SHANGHAI JIAOTONG UNIV