Method and apparatus for displaying ROI (region of interest) in dual-energy CT (Computed Tomography) image

Abstract

The present invention discloses a method for displaying an ROI in a dual-energy CT (Computed Tomography) image. According to the method, as for the ROI in the dual-energy CT (Computed Tomography) image, whether a plaque represented by the ROI is a lipidated plaque or a calcified plaque can be judged according to the change trend of the energy spectrum curve of the ROI, and therefore, when the plaque represented by the ROI is the lipidated plaque, the energy spectrum curve of a lipidated plaque region can be adopted as a reference energy spectrum curve, when the plaque represented by the ROI isthe calcified plaque, the energy spectrum curve of a calcified plaque region can be adopted as a reference energy spectrum curve, and thus, the metric of the energy spectrum curve of the ROI relativeto the reference energy spectrum curve can be calculated, and the ROI is displayed according to the metric; and thus, the lapidated condition and calcified condition of the plaque region in the dual-energy CT image can be identified, and the display mode of the plaque region can reflect the lapidated condition and calcified condition of the plaque region, and medical personnel can easily understand whether the plaque is a lipidated plaque or a calcified plaque.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method and device for displaying ROIs in dual-energy CT images. Background technique [0002] At present, dual-energy CT (Computed Tomography, Computed Tomography) imaging technology has been increasingly used in the field of medical images. In dual-energy CT imaging technology, since the X-rays produced by the tube have a continuous energy distribution, the shooting target will have different absorption effects on X-rays under different X-ray energies. Therefore, the generated dual-energy CT images are relatively Compared with conventional CT images, it can provide more image information. [0003] For the suspicious lesion area in the dual-energy CT image, the qualitative analysis of the substance of the suspicious lesion area can be carried out through the energy spectrum curve, so that the suspicious lesion area can be displayed according to the analysis results, s...

AI Technical Summary

Problems solved by technology

[0004] The inventor found through research that, for some suspicious lesion areas in the dual-energy CT image, the display method of the suspicious lesion area in the prior art cannot reflect the qualitative analysis results of the suspicious lesion area

For example, in the prior art, for the plaque area in dual-energy CT images, it is often difficult to determine whether the plaque area belongs to calcified plaque or fatty plaque. Lipidation and calcification

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