Magnetic resonance imaging method and system

A magnetic resonance imaging and imaging technology, which is applied in medical science, diagnostic signal processing, sensors, etc., can solve the problems of low flexibility, long imaging time, high energy received by patients, etc.
CN108209918AActive Publication Date: 2018-06-29SHANGHAI UNITED IMAGING HEALTHCARE
10 Cites 12 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI UNITED IMAGING HEALTHCARE
Publication Date
2018-06-29

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a magnetic resonance imaging method and system, wherein the method comprises: before imaging scanning, determining a preset deflection angle of a radio frequency pulse to excite specific tissues; analyzing a corresponding dual-saturated pulse deflection angle according to the preset deflection angle; combining a dual-saturated pulse and a gradient pulse to form a dual-saturated pulse saturation module, wherein the gradient pulse includes a layer-selecting gradient pulse that is used for exciting a corresponding layer of the specific tissues; executing an imaging scanning process, to be specific, applying the dual-saturated pulse saturation module and an imaging pulse sequence sequentially to a scanning area to perform magnetic resonance imaging. By carrying out magnetic resonance imaging through the dual-saturated pulse saturation module and the imaging pulse sequence, saturated band signal inhibition non-uniformity due to non-uniformity of B1 field can be overcome, and motion artifacts due to organ motion, tissue motion and other motions can be inhibited.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] Embodiments of the present invention relate to magnetic resonance imaging technology, and in particular to a magnetic resonance imaging method and a magnetic resonance system. Background technique

[0002] In the magnetic resonance imaging equipment, by placing the patient's tissue to be scanned in an imaging space in which a static magnetic field B0 is formed, the spins of protons in the to-be-scanned area are aligned to the direction of the static magnetic field, so as to generate magnetization vectors. Then, a high-frequency magnetic field is formed by transmitting radio frequency RF pulses at the resonant frequency, resulting in the occurrence of the magnetic resonance phenomenon. The phenomenon of magnetic resonance causes the flipping of the spin direction of the proton to change the magnetization vector of its proton. Magnetic resonance MR signals are generated when the spin returns the protons to their initial state of magnetization vector in ...

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