Oval foramen unclosed detection method and system, terminal and storage medium

Abstract

The invention relates to an oval foramen unclosed detection method and system, a terminal and a storage medium. The method comprises the following steps: respectively carrying out left atrium ROI segmentation on each frame of image in atrial apex four-cavity tangent plane view angle dynamic image data, wherein the cardiac apex four-cavity tangent plane view angle dynamic image data comprises TTE image data and cTTE image data in a set number of cardiac cycles; calculating the gray scale of the left atrium ROI of each frame of image in the TTE image data, screening out the minimum gray scale distribution interval of the TTE image data, and screening out the cTTE image of the corresponding interval in the cTTE image data according to the minimum gray scale distribution interval of the TTE image data; carrying out microbubble detection and feature extraction on the screened cTTE images, inputting the microbubble detection and feature extraction into a trained prediction model, and outputting an oval hole closing state detection result through the prediction model. Non-invasive PFO detection is realized, the operation is simple, the accuracy is high, and the detection rate and the detection efficiency are improved.

Description

technical field [0001] The application belongs to the technical field of medical ultrasound imaging, and in particular relates to a method, system, terminal and storage medium for detecting a patent foramen ovale. Background technique [0002] The foramen ovale is an embryonic defect (hole) in the atrial septum in the center of the heart. During fetal growth and development, the foramen ovale acts as an important life channel, which allows oxygenated blood to flow from the right atrium to the left atrium. In 75% of newborns, as the lungs develop and the resistance of the lungs decreases, there is a consequent increase in the pressure in the heart from the left to the right atrium, causing the opening to close automatically and the foramen ovale to functionally close . However, patent foramen ovale (PFO) still exists in 15%-35% of the adult population. According to statistics, PFO is the most common congenital heart abnormality among adults. The correct judgment of whethe...

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Problems solved by technology

[0007] 1. TEE is a semi-invasive detection method that cannot avoid risks. It is difficult to operate and requires high experience of clinicians. In China, this detection method is not popular, and only large hospitals usually carry out this detection; cTCD passed Cerebral blood circulation detection of contrast agent microbubbles from PFO can only infer the source of microbubbles indirectly, and cannot directly prove the existence of PFO; TTE is non-invasive and easy to operate, but its detection rate and sensitivity are low; cTTE as a

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