Focus positioning method and device

Abstract

The invention provides a focus positioning method and device. The method comprises the steps: detecting a position parameter of a spine from a medical image, and determining an intersection point of an extension line of the spine and the edge of a trunk in the medical image; taking a connecting line of the central point and the intersection point as a boundary line of a left region and a right region of the medical image, and determining a boundary line of the trunk in the front-back direction in the medical image according to a target vertical line of the connecting line of the central pointand the intersection point; and determining an area where the focus is located according to the boundary line. The method is characterized by, based on physiological structure characteristics of the spine, determining the intersection point of the extension line of the spine and the edge of the trunk, and determining the connecting line of the central point of the area occupied by the spine and the intersection point and the vertical line of the connecting line so as to determine the boundary lines of different regions, thereby realizing a purpose of determining the area where the focus is located according to the boundary lines; since the physiological structure characteristics of the spine are relatively stable, compared with a manual labeling method, the method has relatively high accuracy; and compared with the manual labeling method, the method has relatively high efficiency due to the fact that automatic implementation is realized.

Description

technical field [0001] The present application relates to the technical field of medical diagnosis, in particular to a method and device for locating a lesion. Background technique [0002] At present, some algorithms based on deep learning have been able to determine the coordinates of lesions in medical images such as CT images. [0003] However, in addition to the coordinate position, the relative position of the lesion to the trunk, that is, which area of ​​the trunk the lesion is located in (for example, the area includes the front, back, left, and right), is also of great significance for the diagnosis of the disease and the choice of treatment methods. In the prior art, the relative position of the lesion and the torso is usually determined by manually marking or by means of additional markers. [0004] However, the efficiency and accuracy of manual labeling are not high. With the help of additional markers, it is necessary to fix the ward near the markers when taki...

AI Technical Summary

Problems solved by technology

[0004] However, the efficiency and accuracy of manual labeling are not high

With the help of additional markers, it is necessary to fix the ward near the markers when taking medical images, but some patients cannot achieve this special position fixation due to trauma and other reasons, so the use of additional markers is applicable limited sex

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