Image measurement method and system for left atrial appendage, electronic device and storage medium

By performing temporal and spatial registration of three-dimensional cardiac image data and two-dimensional cardiac dynamic video data, and combining it with AI algorithm analysis, the problems of narrow imaging field of view, lack of dynamic changes and low segmentation accuracy in left atrial appendage image measurement were solved, and reliable, stable and accurate dynamic parameter measurement of the left atrial appendage was achieved.

CN121667736BActive Publication Date: 2026-04-28THE FIRST AFFILIATED HOSPITAL OF WENZHOU MEDICAL UNIV
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Patent Information

Application Number
CN202610194767.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-02-11
Publication Date
2026-04-28
Estimated Expiration
2046-02-11

AI Technical Summary

Technical Problem

Existing left atrial appendage image measurement methods rely on transesophageal echocardiography, which has a narrow field of view and cannot provide three-dimensional spatial observation. Three-dimensional CT images lack dynamic change information, have poor registration accuracy, and manual segmentation is time-consuming, highly subjective, and has low segmentation accuracy.

Method used

By performing temporal and spatial registration of three-dimensional cardiac image data and two-dimensional cardiac dynamic video data, and combining the analysis of four-dimensional cardiac image data with a preset AI algorithm, dynamic parameter measurement of the left atrial appendage during the cardiac cycle can be achieved.

Benefits of technology

It provides information on the dynamic changes of the left atrial appendage during the heartbeat cycle, improving measurement accuracy and stability, and realizing automated, objective, and standardized dynamic parameter calculation.

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Abstract

The application provides an image measurement method and system of a left atrial appendage, an electronic device and a storage medium, and relates to the technical field of image measurement of a left atrial appendage. The image measurement method comprises: transforming three-dimensional heart image data according to a spatial position transformation relationship to determine transformed three-dimensional heart image data; transforming the transformed three-dimensional heart image data according to a left atrial appendage motion change function to determine four-dimensional heart image data; and analyzing the four-dimensional heart image data based on a preset AI algorithm to determine a target dynamic parameter of the left atrial appendage in a heartbeat cycle. The application introduces a dynamic parameter change curve of the left atrial appendage in the entire heartbeat cycle (including the systole and diastole) based on the spatial position transformation relationship and the left atrial appendage motion change function, provides dynamic change information of the left atrial appendage morphology in the heartbeat cycle, and thus makes the image measurement of the left atrial appendage more reliable and stable, and improves the measurement accuracy.
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