Arrangement and method for the spatially resolved determination of state variables in an examination area

A detection area and detection object technology, applied in the field of magnetic particle composites and optical contrast composites, can solve problems such as insufficient, and achieve the effect of low saturation induction

Active Publication Date: 2006-05-17
KONINKLIJKE PHILIPS ELECTRONICS NV
View PDF3 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although optical tomography methods such as optical scatter tomography have the advantage of very gentle and non-destructive detection of biological tissue, this

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
  • Arrangement and method for the spatially resolved determination of state variables in an examination area

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0065] In this test setup, the test object 1 is located in a gradient magnetic field 2 which has a region 4 (first subregion) of low magnetic field strength around a magnetic field-free point 6, the magnetic field strength of which is so low Such that the magnetization of the magnetic particles located therein is not saturated, said region 4 is indicated by a dotted line. The magnetic particles present in the detection object 1 are not shown. Outside the weak magnetic field region 4, the magnetic particles are in a saturated state (second subregion 8). The size of the subfields 4 which determine the spatial resolution of the device depends on the one hand on the strength of the gradient magnetic field and on the other hand on the size of the magnetic field required for saturation. A suitable magnetic field can be generated using, for example, a pair of Maxwell coils 10 .

[0066] In the detection region, a further magnetic field oscillating or rotating in at least one spatia...

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 relates to a method for spatially resolved determination of mechanical, physical, chemical and/or biological properties or state variables within a detection zone of a test object, and/or mechanical, A spatially resolved determination of changes in physical, chemical and/or biological properties or state variables, the method comprising the steps of: a) introducing magnetic particles in the detection region; b) generating a magnetic field comprising a first magnetic field having a low magnetic field strength subfield and a second subfield with a higher magnetic field strength; c) generating a superimposed oscillating or rotating magnetic field in the first subfield such that at least some of the magnetic particles oscillate or rotate; d) detecting The area is illuminated with electromagnetic radiation; and e) detecting this reflected and/or scattered electromagnetic radiation and determining the intensity, absorptivity and/or polarizability. The invention also relates to a device for carrying out the method. The invention further relates to an optical contrast composition and a magnetic particle composition having improved imaging properties.

Description

technical field [0001] The invention relates to a device for spatially resolved determination of mechanical, physical, chemical and / or biological properties and state variables and changes in these properties and state variables within a detection region of a test object. The invention also relates to a method for spatially resolved determination of said properties and state variables using said device of the invention. The invention also relates to a magnetic particle composition and an optical contrast composition having improved magnetic particle imaging properties. . Background technique [0002] In the diagnosis of tumors such as breast cancer, radiographic imaging methods are often used, although a destructive effect on the irradiated tissue cannot be definitively ruled out. Nuclear spin tomography, ultrasound methods, and expensive and complex infrared tomography are also valid alternative detection methods. A particularly gentle examination of tissue is then possi...

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): A61B5/00A61B5/05A61B5/06A61K49/18
CPCA61B5/05A61B5/0515A61K49/0002A61K49/001A61K49/1818
Inventor B·格莱奇
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
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