Method and device for segmented positioning of pulmonary blood vessel, equipment and storage medium

Abstract

The invention provides a method and device for segmented positioning of a pulmonary blood vessel, equipment and a storage medium, and the method comprises the steps: segmenting and extracting a maximum external cubic region of a three-dimensional image where a target lung blood vessel is located from an obtained lung three-dimensional image, and taking the maximum external cubic area as first input data; inputting the first input data into a trained pulmonary blood vessel segmentation positioning model to obtain a first segmentation result, a second segmentation result and an initial positioning result of the target pulmonary blood vessel; determining a positioning candidate area corresponding to each blood vessel branch of the target pulmonary blood vessel by using the first segmentation result and the second segmentation result; and for each blood vessel branch of the target pulmonary blood vessel, correcting a starting point coordinate corresponding to the blood vessel branch in the initial positioning result by using the positioning candidate area corresponding to the blood vessel branch to obtain a final positioning result of the target pulmonary blood vessel. Segmented positioning can be conducted on the target pulmonary blood vessel, and the accuracy of the segmented positioning result is improved.

Description

technical field [0001] The present application relates to the technical field of data processing, and in particular, to a method, device, device and storage medium for segmental positioning of pulmonary vessels. Background technique [0002] Pulmonary blood vessels are an important part of the pulmonary circulatory system. Pulmonary blood vessels can be divided into pulmonary arteries and pulmonary veins. Pulmonary blood vessels run in the lung segment and are distributed in a tree structure. Since the pulmonary vessels are distributed in a tree structure, the pulmonary vessels can be segmented according to the main trunk and vascular branches. Specifically, for the pulmonary artery, the pulmonary artery can be divided into one main trunk and 18 vascular branches; for the pulmonary vein, the pulmonary vein includes: the intrasegmental vein and the intersegmental vein, because the intersegmental vein is located between different pulmonary segments, Therefore, intersegmental ...

AI Technical Summary

Problems solved by technology

In this way, on the one hand, the recognition accuracy of the pulmonary vessel centerline in the segmentation task is relatively high, and the number of classification tasks in the classification task is also high, resulting in a large amount of data processing, which easily leads to a decrease in the accuracy of the obtained segmentation results; on the other hand, On the one hand, on the basis that the accuracy of the segmentation results cannot be guaranteed, the manual positioning method requires manual marking by the staff, and the accuracy of the positioning results obtained by it is greatly affected by artificial factors. Therefore, the lung The accuracy of blood vessel segmentation positioning results is low

Images