Gamma camera imaging method and gamma camera imaging device

The gamma camera method enhances imaging by selecting and processing specific energy ranges for each radioactive material, reducing noise and improving signal-to-noise ratio, ensuring clear representation of all sources, including moving and stationary materials.

DE102022130033B4Active Publication Date: 2026-05-07NUCTECH CO LTD
2 Cites 0 Cited by

Patent Information

Application Number
DE102022130033
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-12-28
Filing Date
2022-11-14
Publication Date
2026-05-07
Estimated Expiration
2042-11-14

AI Technical Summary

Technical Problem

Conventional gamma cameras struggle with background noise and low signal-to-noise ratios, particularly when imaging multiple radioactive materials with varying intensities, leading to incomplete representation of all sources and interference between static and dynamic measurements.

Method used

The method involves selecting specific energy ranges for each radioactive material, performing image reconstruction, normalization, and superposition to form a composite image, while adaptively adjusting energy ranges based on contrast ratios and discarding irrelevant data to enhance signal-to-noise ratio and separate moving and stationary images.

Benefits of technology

This approach improves the visibility and accuracy of imaging multiple radioactive materials by reducing background noise and ensuring clear representation of all sources, even in dynamic conditions, with reduced computational effort and measurement time.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

Gamma camera imaging techniques, which include: Select (S101) from energy spectra recorded by a gamma camera on one or more radioactive materials, one or more energy ranges of each radioactive material, as one or more monitored energy ranges of the radioactive material; Performing (S102) an image reconstruction on the monitored energy ranges of each radioactive material among the one or more radioactive materials; Performing (S103) a normalization of the images obtained by image reconstruction; and Performing (S104) a superposition on the normalized images to produce a composite image, characterized by the fact that the selection includes: Sweeping through the energy spectra to find peaks and comparing the peaks with energies of branches of respective radioactive materials recorded in a predetermined nuclide bank to determine the one or more radioactive materials; Determine, for each radioactive material among the one or more radioactive materials, a portion of branches of the radioactive material with a relatively higher branch ratio or lower energy than one or more branches of the radioactive material to be monitored; and Determine, for each branch of the one or more branches, an energy range of the radioactive material centered on a central energy of the branch and having a width of half a height width of a peak corresponding to the branch as one of the one or more monitored energy ranges of the radioactive material.
Need to check novelty before this filing date? Find Prior Art