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

Magnetic resonance method and apparatus for generating different weighted images from the same magnetic resonance echo signal evolution

A technology of magnetic resonance data and contrast, applied in magnetic resonance measurement, measurement using nuclear magnetic resonance image system, measurement using magnetic variables, etc.

Inactive Publication Date: 2010-02-24
SIEMENS AG +1
View PDF4 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the same CSF will produce very high signal in T2-weighted images and will therefore appear bright

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
  • Magnetic resonance method and apparatus for generating different weighted images from the same magnetic resonance echo signal evolution
  • Magnetic resonance method and apparatus for generating different weighted images from the same magnetic resonance echo signal evolution
  • Magnetic resonance method and apparatus for generating different weighted images from the same magnetic resonance echo signal evolution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] figure 1 The design of the magnetic resonance system 1 with its basic components is shown schematically. For the examination of the body by means of magnetic resonance imaging, multiple magnetic fields are used which are matched to one another as precisely as possible with respect to their temporal and spatial properties.

[0021] A strong magnet (typically a cryomagnet 5 with a tunnel-shaped opening) arranged in a radio-frequency shielded measuring chamber 3 generates a static strong basic magnetic field 7, typically 0.2 Tesla to 3 Tess Pull and higher. The body or body part (not shown here) to be examined is supported on the patient table 9 and positioned in the homogeneous region of the basic magnetic field 7 .

[0022] The excitation of the nuclear spins of the body is ensued by radio-frequency excitation magnetic pulses radiated via a radio-frequency antenna (shown here as body coil 13 ). The RF excitation pulses are generated by a pulse generation unit 15 whic...

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

In a method and an apparatus for acquiring magnetic resonance data, a region of a subject is exposed to a spin echo magnetic resonance pulse sequence that includes a refocusing radio-frequency pulse flip angle evolution that causes magnetic resonance signals to be emitted from the region with a signal evolution following each excitation radio-frequency pulse. The signal evolution is sampled to extract two or more sets of sampled data therefrom respectively with different contrast weightings of tissues in the region. The multiple sets of sampled data are made available as respective outputs ina form allowing multiple different images of the region to be generated therefrom, respectively with said different contrast weightings. For example, a spin density-weighted image and a T2-weighted image, or a T2-weighted image and a heavily T2-weighted image, thus can be generated by sampling from the same variable-flip-angle echo train.

Description

technical field [0001] The invention relates to a method for acquiring magnetic resonance data with different types of weighting, and a magnetic resonance data acquisition system for implementing such a method. Background technique [0002] In recent years magnetic resonance techniques have been increasingly used to produce images of cross-sections of the human body, thus, compared to other medical imaging modalities such as fluoroscopy using X-rays or computed tomography, It has the advantage, among other things, that patients and medical personnel are not exposed to ionizing radiation. [0003] Magnetic resonance (MR) technology is a well-known technique that can be used to generate images of the interior of an examination object. For this purpose, the object under examination is positioned in the MR system in a strong static homogeneous basic magnetic field (field strengths of less than 0.2 Tesla to 7 Tesla and higher) such that the nuclear spins of the object become ali...

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): A61B5/055G01R33/56
CPCG01R33/5602G01R33/5608G01R33/54
Inventor 威廉·霍杰约翰·马格勒
Owner SIEMENS AG
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