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A measurement method, device, computer equipment and non-uniform field magnetic resonance system of adc-t2 two-dimensional spectrum

A technology of ADC-T2 and measurement method, which is applied to measurement devices, uses nuclear magnetic resonance imaging systems to measure, and measures magnetic variables, etc., and can solve the problem of high hardware requirements for radio frequency power amplifiers and radio frequency coils

Active Publication Date: 2021-08-03
MARVEL STONE HEALTHCARE CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to solve the NMR system with an extremely inhomogeneous magnetic field, it is necessary to use an ultra-fast signal readout module to accurately measure the two-dimensional map distribution of ADC and T2, resulting in very high hardware requirements for spectrometer equipment, RF power amplifiers, and RF coils. The object of the present invention is to provide a method, device, computer equipment, non-uniform field magnetic resonance system and computer-readable storage medium for measuring the decay time constant of the transverse magnetization vector

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  • A measurement method, device, computer equipment and non-uniform field magnetic resonance system of adc-t2 two-dimensional spectrum
  • A measurement method, device, computer equipment and non-uniform field magnetic resonance system of adc-t2 two-dimensional spectrum
  • A measurement method, device, computer equipment and non-uniform field magnetic resonance system of adc-t2 two-dimensional spectrum

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Embodiment Construction

[0074] The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments. It should be noted here that although the descriptions of these embodiments are used to help the understanding of the present invention, they are not intended to limit the present invention. Specific structural and functional details disclosed herein are for purposes of describing example embodiments of the invention only. However, the invention may be embodied in many alternative forms and should not be construed as limited to the embodiments set forth herein.

[0075] It will be understood that, although the terms first, second etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one unit from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing f...

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Abstract

The invention relates to the technical field of nuclear magnetic resonance imaging, and discloses a measurement method, device, computer equipment and non-uniform field magnetic resonance system of ADC‑T2 two-dimensional atlas, which can be used in extremely non-uniform magnetic fields or extremely short In the echo time NMR system, the ADC coefficient and T2 value are fitted from multiple sets of echo signals by acquiring multiple echo signals collected by CPMG sequences with different echo intervals, so that the ADC‑ The T2 spectrum eliminates the need for complex diffusion weighted sequences, has the advantages of simple algorithm and low system requirements, and can reduce the cost of hardware systems such as spectrometer equipment, RF power amplifiers, and RF coils. At the same time, the measurement method also has the characteristics of stable algorithm, is not easily affected by flowing liquid, and is also suitable for substances with small T1 / T2.

Description

technical field [0001] The invention belongs to the technical field of nuclear magnetic resonance imaging, and in particular relates to magnetic resonance spectrometer technology, in particular to a measurement method, device, computer equipment and non-uniform field magnetic resonance system for the decay time constant of a transverse magnetization vector. Background technique [0002] Nuclear magnetic resonance technology is a technique that uses the nuclear magnetic resonance phenomenon of hydrogen protons to image or detect the composition and structure of substances. Nuclei containing a single number of protons in the human body, such as the hydrogen nucleus, have a spin motion for the protons. The spin motion of charged atomic nuclei is physically similar to individual small magnets, and the directionality distribution of these small magnets is random in the absence of external conditions. When the human body is placed in an external magnetic field, these small magnet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R33/54G01R33/50
CPCG01R33/54G01R33/543G01R33/50
Inventor 张洁莹潘子异王伟谦吴子岳叶洋
Owner MARVEL STONE HEALTHCARE CO LTD
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