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

PET image reconstruction method, device and equipment and medium

A technology of image reconstruction and CT image, which is applied in the field of medical image reconstruction, can solve the problems of large amount of calculation, resource obstruction by PET scanning, and time delay that cannot realize real-time preview of PET images, so as to achieve the effect of improving reconstruction speed and realizing real-time preview

Active Publication Date: 2019-04-30
SHANGHAI UNITED IMAGING INTELLIGENT MEDICAL TECH CO LTD
View PDF5 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional PET image reconstruction method is: after the PET image is generated based on the collected raw data, it also includes a series of data correction operations such as attenuation correction and scatter correction, as well as statistical iterative reconstruction operations, and finally obtains a PET image that meets the requirements. In the domain, mathematical modeling is required, and the amount of calculation is very large. It usually takes 2-3 minutes in the actual PET image reconstruction process. Such a large time delay makes it impossible to achieve the purpose of real-time preview of PET images; and in the process of PET image reconstruction In the process, the relevant medical workers cannot intuitively understand the current operating status of the equipment and whether the reconstructed PET image meets the target requirements, resulting in the relevant medical workers being unable to control the scanning process in real time, thus bringing great harm to PET scanning. obstacles and unnecessary waste of resources

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
  • PET image reconstruction method, device and equipment and medium
  • PET image reconstruction method, device and equipment and medium
  • PET image reconstruction method, device and equipment and medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] figure 1 It is a schematic flowchart of a PET image reconstruction method provided by Embodiment 1 of the present invention. The PET image reconstruction method disclosed in this embodiment can be performed by a PET image reconstruction device, wherein the device can be implemented by software and / or hardware, and generally integrated in a terminal, such as 2m PET-CT equipment. For details, see figure 1 As shown, the method may include the following steps:

[0033] Step 110: Obtain corresponding CT images and non-attenuation-corrected PET images based on scanning the living body.

[0034] Specifically, the organism is scanned by a 2m PET-CT device to obtain biological data. PET-CT equipment perfectly integrates PET and CT. PET provides detailed molecular information such as function and metabolism of biological lesions, while CT provides precise anatomical positioning of lesions. One imaging can obtain tomographic images of all directions of the whole body. The raw ...

Embodiment 2

[0051] image 3 It is a schematic flowchart of a PET image reconstruction method provided by Embodiment 2 of the present invention. On the basis of the above-mentioned embodiment, this embodiment is further optimized. Before inputting the CT image and the non-attenuation-corrected PET image into the pre-trained neural network model, an addition of "the CT image and the non-attenuation-corrected PET image Attenuation-corrected PET image preprocessing" step, the advantage of optimization is that it can improve the processing speed of the neural network model and the reconstruction quality of the PET image. For details, see image 3 As shown, the method includes the following steps:

[0052] Step 310: Obtain corresponding CT images and non-attenuation-corrected PET images based on scanning the living body.

[0053] Step 320: Perform image registration on the CT image and the non-attenuation-corrected PET image to obtain a registered CT image and non-attenuation-corrected PET i...

Embodiment 3

[0075] Figure 4 It is a schematic structural diagram of a PET image reconstruction device provided by Embodiment 3 of the present invention. see Figure 4 As shown, the device includes: an image acquisition module 410 and a reconstruction module 420;

[0076] Wherein, the image acquisition module 410 is used to obtain corresponding CT images and non-attenuation-corrected PET images based on scanning the living body;

[0077] The reconstruction module 420 is configured to input the CT image and the non-attenuation-corrected PET image into a pre-trained neural network model to obtain an attenuation-corrected PET image.

[0078] Further, the device also includes a preprocessing module, which is used to process the CT image and the non-attenuation-corrected PET image before inputting the CT image and the non-attenuation-corrected PET image into a pre-trained neural network model Carry out preprocessing; Described preprocessing module specifically comprises:

[0079] A registr...

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 embodiment of the invention discloses a PET image reconstruction method, device and equipment and a medium. The method comprises the steps that a corresponding CT image and an unattenuated and corrected PET image are obtained based on organism scanning; and the CT image and the PET image which is not subjected to attenuation correction are input into a pre-trained neural network model to obtain an attenuation-corrected PET image. By the adoption of the technical scheme, the reconstruction speed of the PET image can be greatly increased, and therefore real-time preview of the PET image is achieved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of medical image reconstruction, and in particular to a PET image reconstruction method, device, equipment and medium. Background technique [0002] PET (Positron Emission Tomography, positron emission tomography) is a neuroimaging examination instrument developed rapidly after CT (Computed Tomography, computerized tomography). At present, it has outstanding value in the diagnosis and treatment of tumors, coronary heart disease and brain diseases, and is a relatively advanced clinical examination imaging technology in the field of nuclear medicine. It injects radioactive tracers into the living organisms without changing the physiological state of the organisms, and the radioactive tracers participate in the physiological metabolism of the living organisms. Obtaining PET images) can realize the observation of the metabolic function of living organisms. [0003] The traditional PET ima...

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
IPC IPC(8): G06T11/00G06N3/02
CPCG06N3/02G06T11/003G06N3/084G06T11/008G06N3/047G06N3/045G06T2211/464G06T2211/441G06N3/08G06T11/005G06T2211/428
Inventor 张阳吕杨奚臣
Owner SHANGHAI UNITED IMAGING INTELLIGENT MEDICAL TECH CO LTD
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