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A multi-layer excitation signal acquisition method and system

A technology for excitation signal and acquisition system, applied in the direction of measuring magnetic variables, instruments, measuring devices, etc., can solve problems such as difficult to achieve multi-layer excitation and signal acquisition, and achieve the effect of multi-layer excitation

Active Publication Date: 2021-03-30
MARVEL STONE HEALTHCARE CO LTD
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Problems solved by technology

[0009] Embodiments of the present invention provide a multi-layer excitation signal acquisition method and system to solve or improve the technical problem that existing nuclear magnetic resonance technology is difficult to achieve multi-layer excitation and signal acquisition

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  • A multi-layer excitation signal acquisition method and system
  • A multi-layer excitation signal acquisition method and system
  • A multi-layer excitation signal acquisition method and system

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Embodiment Construction

[0044] In order to make the object, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0045] Embodiments of the present invention provide a multi-layer excitation signal acquisition method and system to solve or improve the technical problem that it is difficult to realize multi-layer excitation and signal acquisition in the existing nuclear magnetic resonance technology. Wherein, the method and the system are based on the same inventive concept, and since the principles of the method and the device to solve problems are similar, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated.

[0046] A plurality referred to...

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Abstract

The embodiment of the invention relates to a multilayer excitation signal acquisition method and system, and aims solving or partially solving the technical problem that the existing nuclear magneticresonance technology is difficult to realize multi-layer excitation and signal acquisition. The method comprises the following steps that S, a nuclear magnetic resonance source is moved to the position of a to-be-excited layer, and a nuclear magnetic resonance pulse sequence is applied to the position of the to-be-excited layer of a measured object by the nuclear magnetic resonance source; the nuclear magnetic resonance source excites and collects nuclear magnetic resonance echo signals generated at the position of the to-be-excited layer; and the step S is repeated. The system comprises a workstation, a nuclear magnetic resonance system and a displacement table. According to the embodiment of the invention, the nuclear magnetic resonance source is moved to excite different excitation layer positions and acquire nuclear magnetic resonance echo signals, so that multi-layer excitation of a measured object in space is realized.

Description

technical field [0001] Embodiments of the present invention relate to a multi-layer excitation signal acquisition method and system. Background technique [0002] Nuclear magnetic resonance technology is a technology that uses the nuclear magnetic resonance phenomenon of hydrogen protons to image or detect the composition and structure of substances. For example, a nucleus in the human body that contains a singular number of protons, such as a hydrogen nucleus, has a spin motion of the protons. The spin motions of charged nuclei are physically analogous to individual small magnets whose directional distributions are random in the absence of external conditions. When the measured object is placed in an external magnetic field, these small magnets will rearrange according to the magnetic field lines of the external magnetic field. At this time, the nuclei are excited with radio frequency pulses of a specific frequency, so that the spins of these nuclei (small magnets) are de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N24/08G01R33/561
CPCG01N24/08G01R33/5615
Inventor 吴子岳罗海王伟谦陈潇叶洋
Owner MARVEL STONE HEALTHCARE CO LTD
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