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Nuclear magnetic resonance measurement system suitable for noninvasive quantitative detection of organs

A nuclear magnetic resonance and measurement system technology, which is applied in the direction of using nuclear magnetic resonance imaging system for measurement, magnetic resonance measurement, and magnetic variable measurement, can solve problems such as unsatisfactory excitation areas and inaccurate fat detection, so as to achieve the goal of not being easily affected by movement, The effect of high accuracy and high degree of process

Pending Publication Date: 2022-07-08
MARVEL STONE HEALTHCARE CO LTD
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Problems solved by technology

[0005] In order to solve the problem of inaccurate fat detection in the existing unilateral magnet nuclear magnetic resonance system due to the unsatisfactory excitation area, the purpose of the present invention is to provide a new type of nuclear magnetic resonance measurement system suitable for non-invasive quantitative detection of organs

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  • Nuclear magnetic resonance measurement system suitable for noninvasive quantitative detection of organs
  • Nuclear magnetic resonance measurement system suitable for noninvasive quantitative detection of organs
  • Nuclear magnetic resonance measurement system suitable for noninvasive quantitative detection of organs

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Embodiment Construction

[0050] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted here that, although the description of these embodiments is for helping understanding of the present invention, it does not constitute a limitation of the present invention. Specific structural and functional details disclosed herein are merely intended to describe exemplary embodiments of the present invention. The present invention, however, may be embodied in many alternative forms and should not be construed as limited to the embodiments set forth herein.

[0051] 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 referred to as a second element, and similarly a second element could be referred to as a first...

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Abstract

The invention relates to the technical field of nuclear magnetic resonance, and discloses a nuclear magnetic resonance measurement system suitable for noninvasive quantitative detection of organs. Through the creation of the invention, a novel nuclear magnetic resonance measurement system capable of achieving a regioselective excitation effect can be provided, that is, parallel auxiliary radio frequency coils are arranged in the peripheral area of the main radio frequency coil of the radio frequency subsystem, and the measurement sequence pulse signal is transmitted before or in the process of transmitting the measurement sequence pulse signal. The auxiliary radio frequency coil is used for transmitting a pre-saturated pulse signal to generate a radio frequency field covering a non-interested area in a detection area, so that part or all of magnetization vectors in the non-interested area are parallel to a static magnetic field generated by the magnet; further, useless signals which are generated in the non-interested area and can cause interference to echo signals generated in the interested area can be weakened or disappeared during measurement, the regioselective excitation effect is achieved, and the problem that fat detection is inaccurate due to the fact that an excitation area of a current unilateral magnet nuclear magnetic resonance system is not ideal is solved.

Description

technical field [0001] The invention belongs to the technical field of nuclear magnetic resonance, and in particular relates to a nuclear magnetic resonance measurement system suitable for non-invasive quantitative detection of organs. Background technique [0002] In traditional medical equipment, the technical means that can be used for human organ testing (such as liver testing, etc.) mainly include ultrasonic testing, nuclear magnetic resonance testing and puncture testing. However, they each have their own limitations, such as: (a) Ultrasound detection: traditional ultrasound detection instruments can only perform qualitative measurements and cannot meet the detection requirements when the fat content is below 30%; the other type is ultrasound-based fatty liver and The main limitation of quantitative detection products for liver fibrosis is that it is easily affected by insufficient ultrasound penetration, and the success rate is low when detecting obese patients; (b) M...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/32G01R33/34G01R33/42G01R33/54A61B5/055
CPCG01R33/32G01R33/34G01R33/42G01R33/54A61B5/055A61B5/4872G01R33/422G01R33/4838G01R33/34007A61B5/704G01R33/34092G01R33/4828G01R33/56563
Inventor 罗海王伟谦陈潇赵越解运浩吴子岳
Owner MARVEL STONE HEALTHCARE CO LTD
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