Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A coincidence processing method of a scintillation pulse event

A processing method and technology of scintillation pulses, which are applied in image data processing, radiation measurement, 2D image generation, etc., can solve the problems of inconvenient practical application, scintillation pulse events conforming to processing errors, etc., achieve simple implementation and improve image reconstruction quality , Improve the effect of reconstructed image quality

Active Publication Date: 2019-05-28
RAYCAN TECH CO LTD SU ZHOU
View PDF8 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a coincident processing method of scintillation pulse events, so as to solve the problem that errors exist in the coincident processing of scintillation pulse events in the prior art and are not convenient for practical application

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A coincidence processing method of a scintillation pulse event
  • A coincidence processing method of a scintillation pulse event
  • A coincidence processing method of a scintillation pulse event

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The present invention will be further described below in conjunction with specific embodiments. It should be understood that the following examples are only used to illustrate the present invention but not to limit the scope of the present invention.

[0036] The consistent processing method of the scintillation pulse event provided by the present invention is used for the data processing in the PET system, mainly comprises the following steps:

[0037] Step S1: Obtain experimental data, the experimental data is the time information of the arrival of the gamma photon generated after the positron annihilation to the detector, the energy information of the gamma photon deposited in the detector, and the position information of the gamma photon, the corresponding two The time information of the gamma photons collected by the detector is T i1 and T i2 , the energy information is E i1 and E i2 ;

[0038] Step S2: Set the energy window and time window to obtain coinciden...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a coincidence processing method of a scintillation pulse event. The method comprises the following steps: S1, acquiring experimental data of the PET system; wherein the experimental data comprises time information that a pair of gamma photons with the same energy and opposite directions generated after positron annihilation arrives at two corresponding detectors and energy information that the gamma photons deposit in the detectors; wherein the time information is Ti1 and Ti2 respectively; wherein the energy information is Ei1 and Ei2; s2, a step S2 is performed; settingan energy window and a time window and acquiring a coincidence event; energy window setting E, time window setting to T, wherein the gamma photons meeting the following conditions are marked as a pair of true coincidence events: |Ti1-Ti2|<=T, Ei1<=E, and Ei2<=E. The method comprises the following steps: S3, carrying out weighting processing on the true coincidence events, and carrying out enhancement processing by adopting two formulas, S4, carrying out image reconstruction to obtain an image result, and S5, analyzing the image result. The weights of the coincidence events are distributed byutilizing the energy information, the quality of the reconstructed image is improved, and the adaptability is high.

Description

technical field [0001] The invention relates to a scintillation pulse processing method in the field of positron emission computed tomography imaging, and more particularly to a coincident processing method of scintillation pulse events. Background technique [0002] PET (Positron Emission Tomography, positron emission tomography, hereinafter referred to as PET) is a non-invasive nuclear medicine imaging method. After the radioactive tracer is injected into the human body or animal body, the tracer will show different concentration distributions in different parts of the human body or animal body according to the metabolic level in different parts of the human body or animal body. The β+ decay of radioactive substances in the human body or animals produces positrons, and the annihilation of the positrons and the electrons in the human body or animals produces a pair of gamma photons with the same energy but opposite directions. Therefore, gamma photons are measured by extern...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06T11/00
CPCG01T1/29G06T11/00
Inventor 肖鹏徐浩王卫东
Owner RAYCAN TECH CO LTD SU ZHOU
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com