Multi-mode imaging system registering method

Abstract

The invention provides a multi-mode imaging system registering method. A multi-mode imaging system comprises a first imaging system and a second imaging system. The multi-mode imaging system registering method comprises providing contrast agent for the first imaging system and tracer agent for the second imaging system; mixing the contrast agent and the tracer agent into a point source; scanning the point source through the multi-mode imaging system to obtain a first image and a second image; according to the position information of the point source inside the first image and the second image for registration of the first imaging system and the second imaging system. The multi-mode imaging system registering method can improve precision of system registration.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a multimodal imaging system registration method. Background technique [0002] Positron Emission Tomography (PET) is a three-dimensional imaging non-destructive testing technique that uses positron radioactive isotope-labeled compounds injected into organisms to measure their spatial distribution and time characteristics in vitro. High precision, good accuracy and accurate positioning. [0003] Electronic computer X-ray tomography technique (CT) is an imaging technique in which an X-ray beam scans a certain part of the human body. When taking X-ray images of human tissue, part of the radiation is absorbed by the tissue, and part of the radiation passes through the human body and is absorbed by the detection organ to generate a signal. [0004] In addition to PET and CT, the field of modern medical devices also includes a variety of other imaging technologies, such as: Magnetic Re...

AI Technical Summary

Problems solved by technology

However, in this method, the relative position of the ball containing the radioactive solution in the CT image is determined by clicking the operator's mouse to determine the center of the ball containing the radioactive solution, thereby obtaining the position of the ball containing the radioactive solution in the CT image. The relative position between the image and the PET image, and the PET-CT system registration is performed according to the relative position, because the diameter of the small ball containing the radioactive solution used is relatively large, and the small ball containing the radioactive solution is determined by the operator’s click. There will be a large error in the center of the ball, and the error will be further brought into the measurement of the registration accuracy, resulting in too large an error in the measurement value and meaningless

Images