Image report based CT image emphysema automatic labeling method

Abstract

The invention relates to an image report based CT image emphysema automatic labeling method. The method includes the following steps: (1) accomplishing an image report, CT image sequence inputting andimage standardization preprocessing in an input module; (2) extracting the characteristic information, namely the information about emphysema description, in the image report in a phonetic and semantic extraction module according to the technical and rule pattern matching technology of a dictionary; (3) performing regional division on a lung in an emphysema focus extraction module, and performingcluster analysis in a lung area to extract emphysema focus; and (4) obtaining the CT threshold value of each area through calculation according to calculating results of the step 3, labelling the emphysema area of each area in an output and display module, displaying the emphysema areas in a CT image, and giving a quantitative analysis report of lung function. The advantages of the method are that processes during emphysema diagnosis and treatment can be simplified, and medical expenses of patients can be reduced.

Description

technical field [0001] The invention relates to an automatic labeling method for CT image emphysema, in particular to an automatic labeling method for CT image emphysema based on an image report. Background technique [0002] Chronic obstructive pulmonary disease (COPD), referred to as COPD, is a disease that seriously threatens human health. At present, the main means for doctors to diagnose COPD rely on pulmonary function tests and CT imaging scans, but the imaging reports do not indicate The location information of emphysema on CT images, and pulmonary function tests cannot provide information on the location of emphysema lesions, which leads to the quantitative evaluation and severity grading of emphysema relying on subjective experience, which affects the early diagnosis of patients. Prone to missed diagnosis and misdiagnosis, reducing the effectiveness of diagnosis. [0003] At present, the post-processing workstations equipped by some CT manufacturers provide manual ...

AI Technical Summary

Problems solved by technology

[0004] At present, there are a large number of image reports and CT image data for hospitals, but information such as the location and size of the emphysema is not marked on the CT images

[0005] A large amount of medical data: At present, there are CT images and corresponding imaging diagnosis reports of a certain scale of COPD patients in the hospital, but doctors have not marked the location of emphysema on the CT images, and there is no quantitative analysis result of emphysema. Only qualitative text description of emphysema, no specific location information of lesion

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