Radiation therapy curative effect evaluation device and method based on CT/MRI (Computed Tomography/Magnetic Resonance Imaging) double-body position scanning automatic registration and fusion

Abstract

The invention discloses a radiation therapy curative effect evaluation device and a radiation therapy curative effect evaluation method based on CT / MRI double-body position scanning automatic registration and fusion and belongs to the technical field of medical treatment. The device comprises a CT / MRI machine body, a CT / MRI scanning bed, a four-quadrant scanning plate and a computer equipped with image registration and fusion software; the four-quadrant scanning plate is of a square, slant rods which are intersected are embedded in two diagonals of the square; end parts of the two slant rods are sealed and insides of the slant rods are both formed with cavities, and the cavities are communicated and filled with greases; and the computer is connected with the CT / MRI machine body; the radiation therapy curative effect evaluation method comprises the following steps of: manufacturing and wearing a head mould, locating CT / MRI by the assistance of the four-quadrant scanning plate, locating and scanning CT / MRI and carrying out registration and fusion based on pixel points and evaluating a curative effect. The device and the method have the advantages of using pixel values to achieve automatic registration and fusion of arbitrary radiotherapy positioning scanned images of a double-body position, and providing convenience to medical staffs to carry out an objective evaluation on a radiation therapy.

Description

technical field [0001] The invention relates to a device and method for evaluating the curative effect of automatic registration and fusion radiotherapy based on CT / MRI double body position scanning, belonging to the field of medical technology. Background technique [0002] Image registration and fusion are of great significance in radiation therapy. CT / MRI positioning image fusion used in radiation therapy planning system can significantly improve the accuracy of tumor target identification and delineation. However, due to the inconsistency of CT / MRI image scanning parameters, it is difficult to grasp the coincidence of the patient's body position, and it is often difficult to find a consistent body position in the scanned image, which brings great difficulties and uncertainties to the subsequent image registration and fusion. . [0003] Today's research mainly focuses on how to realize the registration and fusion of CT, MRI, ECT and other images in the design of radiothe...

AI Technical Summary

Problems solved by technology

At the same time, because the feature points of the transverse and sagittal scans are not easy to determine, it is still difficult to realize the fusion of the two positions in a single CT or MRI machine, not to mention the automatic registration and matching between any scan images of the CT / MRI dual positions. fusion

Images