Automatic medical image interlayer sketching method, device and system

Abstract

The invention discloses an automatic medical image interlayer sketching method, device and system. The method comprises the steps of: obtaining a plurality of image sections having interested volume areas; selecting a target image section layer set, defining upper and lower image sections and providing manual outline sketching; obtaining an interlayer image section, and constructing a two-value template image of the outline; generating row pixels associated with the interested volume areas in a mapping manner by using the row pixels corresponding to sketched outline in the upper and lower image sections; and extracting edges of the two-value template image to obtain the target outline. The device comprises a reading module, a preprocessing module, a processing module, a correlation module and a sketching module. The system comprises corresponding computer hardware to execute the above method. The automatic medical image interlayer sketching method, device and system have the advantages that the noise disturbance is lowered, the automatic sketching effect of areas with undefined edges is improved, the dependence on the prophase sketching and the target area data is reduced, the rapid realization of the automatic sketching is facilitated, and the risk of human errors is lowered.

Description

technical field [0001] The invention relates to a method, device and system for automatically delineating medical image compartments, belonging to the field of medical instruments. Background technique [0002] In the field of tumor radiotherapy, after the radiologist arranges a radiotherapy plan based on radiation exposure for tumor patients, the radiotherapy physicist designs a radiotherapy plan that meets the requirements of the treatment plan. Among them, the volume of interest (VOI), which is used to describe the patient's organs at risk and the target target area, is outlined by the radiotherapist in CT and MR images, which is a key step in the radiotherapy plan, which directly determines the accuracy of the radiotherapy plan. . [0003] Usually, volume regions of interest such as organs at risk and target volumes are composed of a set of contour lines, which are distributed on multiple image slices. In order to ensure precision and accuracy, radiotherapy doctors or ...

AI Technical Summary

Problems solved by technology

The disadvantage of this type of method is that a suitable prior data set needs to be prepared in the early stage. On the other hand, there is a poor registration accuracy caused by the uncertainty of the optimal template, and the large amount of registration calculations leads to a long time-consuming automatic delineation.

Images