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Control method, imaging method and system for multiple section/block magnetic resonance signals

A technology of a control method and an imaging method, applied in the direction of magnetic resonance measurement, etc., can solve problems such as low compatibility, and achieve the effects of high compatibility, clear imaging, and improved use efficiency

Active Publication Date: 2010-03-24
陈志宏 +1
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  • Abstract
  • Description
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Problems solved by technology

[0024]Another object of the present invention is to provide a method to obtain multiple sections / areas at the same time without modifying the hardware and software of the existing system in order to overcome the problem of low compatibility. An imaging system that blocks magnetic resonance signals to achieve high compatibility

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  • Control method, imaging method and system for multiple section/block magnetic resonance signals
  • Control method, imaging method and system for multiple section/block magnetic resonance signals
  • Control method, imaging method and system for multiple section/block magnetic resonance signals

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Embodiment Construction

[0046] Below in conjunction with accompanying drawing and embodiment the present invention is described in detail:

[0047] Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numbers, and for convenience of description, the symbol " / " means "or". In addition, the coordinate system (X, Y, Z) used in the present invention is the coordinates of the image, not the absolute coordinates of the instrument.

[0048] It should be noted that the multi-section / block magnetic resonance signal control method of the present invention is applied to magnetic resonance systems, including echo planar imaging (EPI), perfusion imaging (Perfusion), flow velocity imaging (Flow), Vascular imaging (Angio), temperature imaging (Temperature), T1 imaging (lattice-spin retardation time constant), T2 imaging (spin-spin retardation time constant), or diffusion imaging (Diffusion) and other imaging systems.

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Abstract

The invention discloses a control method for multiple section / block magnetic resonance signals, which processes a tested object by the following steps: (a) applying one or a plurality of radio-frequency pulses carrying at least two frequencies, and a section / block excitation gradient magnetic field, so that at least two sections / blocks of the tested object corresponding to the frequencies are excited; (b) applying a space encoding gradient magnetic field; and (c) applying at least one separation gradient magnetic field capable of separating the sections / blocks. The information obtained by using the method in the invention can simultaneously recombine the magnetic resonance images in multiple sections / blocks and is compatible with the prior system hardware.

Description

technical field [0001] The present invention relates to a control method, an imaging method and a system of a magnetic resonance system, in particular to a control method, an imaging method and a system for simultaneously obtaining multi-section / block magnetic resonance signals. Background technique [0002] 1. Principle of two-dimensional magnetic resonance imaging: [0003] The imaging principle of two-dimensional magnetic resonance imaging is mainly to place an object to be tested in a static magnetic field, and then cooperate with radio frequency coils to excite all the nuclear excitation (Excitation) and relaxation (Relaxation) signals in a certain area of ​​the object to be tested, and add a gradient The (Gradient) magnetic field is received by the radio frequency coil and then processed into a magnetic resonance image. If you want to understand the structural or functional changes at different positions in the area, change the gradient magnetic field to determine wher...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/32
Inventor 陈志宏阙志达吴亿泽郭立威
Owner 陈志宏
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