Tracking method and device

A technology of preset models and scattering images, which is applied in radiation therapy, X-ray/γ-ray/particle irradiation therapy, image data processing, etc., can solve the problems of encroaching on the treatment space and high difficulty in engineering realization, so as to increase the treatment space and engineering Easy to achieve, accurate position offset effect

Pending Publication Date: 2022-01-14
CYBERMED TECH XIAN
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, one of the technical problems solved by the embodiments of the present invention is to provide a tracking method and equipment to overcome the need in the prior art to add a scattering beam limiting device between the object to be irradiated and the detector, such as a small Holes, gratings or other coding devices occupy the treatment space and are difficult to implement

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
  • Tracking method and device
  • Tracking method and device
  • Tracking method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1 of the present application provides a tracking method, such as figure 1 as shown, figure 1 It is a flow chart of a tracking method provided in Embodiment 1 of this application. The tracking method includes the following steps:

[0026] Step 101. Acquire the actual scattering image of the target object at the i-th moment.

[0027] Wherein, i is an integer greater than 0, and the actual scattering image is generated according to the rays scattered by the body tissue where the target object is located.

[0028] Optionally, the actual scattering image is generated according to rays (for example, X-rays) irradiated to the body tissue (or object) where the target object is located, and the scattered rays are generated.

[0029] The target object may be an object to be tracked. For example, during radiotherapy, the target object may be a tumor to be tracked, and the body tissue where the target object is located may be the body tissue where the patient's tumor ...

Embodiment 2

[0052] Based on the tracking method described in the first embodiment above, the second embodiment of the present application combines the description of steps 101-103 in the first embodiment, taking the target object as a tumor as an example, and implements the tracking method provided by the embodiment of the present application in the tumor treatment scene Detailed description.

[0053] Such as Figure 2A as shown, Figure 2A It is a schematic diagram of a tumor treatment scene provided in Embodiment 2 of the present application. The radiation source S can emit X-rays. object), because X-rays have penetrating power, therefore, after the rays irradiate body tissues along the y-axis direction, the energy of X-rays gradually attenuates, and because different parts of different body tissues have different absorption capabilities for X-rays, so , the scattered X-rays can represent different parts of body tissue because of their different energies.

[0054] In the first applic...

Embodiment 3

[0065] Based on the tracking methods described in Embodiment 1 and Embodiment 2 above, Embodiment 3 of the present application provides a tracking device for implementing the tracking methods described in Embodiment 1 and Embodiment 2 above. Refer to image 3 As shown, the tracking device 30 includes: an acquisition module 301, an offset module 302 and a tracking module 303;

[0066] Wherein, the obtaining module 301 is used to obtain the actual scattering image of the target object at the i-th moment, i is an integer greater than 0, and the actual scattering image is generated according to the rays scattered by the body tissue where the target object is located;

[0067] The offset module 302 is configured to use a preset model to process the actual scatter image or the reference image corresponding to the actual scatter image, and determine the position offset of the target object at the i-th time according to the processing result, and the preset model is used to indicate th...

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 provides a tracking method and equipment, and the method comprises the steps: obtaining an actual scattering image of a target object at an i-th moment, wherein i is an integer greater than 0, and the actual scattering image is generated according to rays scattered by body tissues where the target object is located; processing the actual scattering image or a reference image corresponding to the actual scattering image by using a preset model, and determining a position offset of the target object at the i-th moment according to a processing result; and tracking the target object according to the position offset at the at least one moment. Since the preset model can indicate the position conversion relation of the corresponding pixels in the image formed before and after the ray scattering, the influence of scattering on the image can be reduced by processing the actual scattering image or the reference image corresponding to the actual scattering image by using the preset model, and the determined position offset is more accurate.

Description

technical field [0001] The embodiments of the present application relate to the field of radiotherapy, and in particular to a tracking method and device. Background technique [0002] One of the key technologies of radiotherapy is to maintain precise positioning of tumors during radiotherapy. In the process of radiation therapy, the radiation emitted by the radiation source is used to treat the tumor in the body tissue, and the radiation needs to be accurately positioned on the tumor. If it cannot be positioned accurately, it will cause damage to the normal tissues around the tumor. However, during the treatment process, the location of the tumor may change due to reasons such as breathing of the treated object, and the location of the tumor in the related technology is not accurate enough, which affects the treatment effect. In addition, in related technologies, it is necessary to add a scattering beam limiting device, such as a small hole, a grating or other encoding devi...

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): A61N5/10G06K9/62G06N3/04G06T7/00G06T7/70
CPCA61N5/1001A61N5/1049G06T7/0012G06T7/70A61N2005/1055A61N2005/1054G06T2207/30096G06T2207/20081G06T2207/20084G06N3/045G06F18/214G06N3/04G06T7/00G06F18/00A61N5/1048A61N5/1045A61N2005/1061
Inventor 闫浩李金升
Owner CYBERMED TECH XIAN
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap