Cardiac real-time cine imaging image processing method and system

Abstract

The invention relates to a method and system for processing a heart real-time film imaged picture. The method comprises the steps that the center of the left ventricle is selected from the heart real-time film imaged picture so that a datum point can be arranged and the right ventricle can be located according to the datum point; a region is selected from the heart real-time film imaged picture and is divided so that a boundary point can be obtained; fitting is conducted on the boundary point so that the center of the left ventricle and the area of the left ventricle can be obtained; the fitted center, changing along with the time, of the left ventricle is recorded so that a breathing movement signal can be obtained and an end expiration period can be determined; a cross correlation coefficient between every two frame pictures in the expiration rear period is calculated, the two frames of pictures with the smallest correlation coefficient are selected, the picture of the left ventricle with the large area obtained through fitting serves as an end diastolic picture and the picture of the left ventricle with the small area obtained through fitting serves as an end-systole picture. According to the method and system for processing the heart real-time film imaged picture, operation is simple, time is saved, and the cardiac function can be analyzed conveniently, rapidly and reliably.

Description

technical field [0001] The invention relates to the field of image processing, in particular to an image processing method and system for cardiac real-time cine imaging. Background technique [0002] Cardiac magnetic resonance cine imaging is a commonly used imaging method for measuring cardiac function in clinical practice. Generally, part of the K-space data is collected within one cardiac cycle. Since the complete k-space data is completed over multiple cardiac cycles, the method is sensitive to respiratory motion. In order to eliminate the influence of breathing movement on the imaging quality, the subjects need to hold their breath repeatedly during the scanning process. This requirement is difficult to achieve in patients with severe heart disease, respiratory disease and infants, so this method has greater clinical limitations. [0003] Cardiac magnetic resonance real-time cine imaging can complete the acquisition of all K-space data within one cardiac cycle by appr...

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to solve the cumbersome and time-consuming problem of manual selection of end-diastolic and end-systolic images at the end of expiration, and provide a simple and time-saving cardiac real-time cine imaging image processing method

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