Magnetic resonance rapid imaging method and system

An imaging method and magnetic resonance technology, applied in the measurement of magnetic variables, measurement devices, instruments, etc., can solve complex and time-consuming mathematical calculations and other problems, achieve high spatial resolution, improve temporal resolution, and speed up scanning effects.

Active Publication Date: 2017-02-22
安徽福晴医疗装备有限公司
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Problems solved by technology

However, because most medical magnetic resonance images are only sparse in the transform domain (a few, such as angiographic images, are sparse in the image domain), and nonlinear reconstruction also requires complex and time-consuming mathematical calculations, it is difficult to apply them in practical work middle

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  • Magnetic resonance rapid imaging method and system
  • Magnetic resonance rapid imaging method and system

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Embodiment Construction

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0044] figure 1 It is a flowchart of a fast magnetic resonance imaging method provided by an embodiment of the present invention. Such as figure 1 As shown, it mainly includes the following steps:

[0045] Step 11. Apply a reference scan to the target field of view, collect data of all views in the K-space raw data, and use it as the starting point of the K-space sliding complete data set.

[0046] In the embodiment of the present invention, the...

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Abstract

The invention discloses a magnetic resonance rapid imaging method and system. The method comprises steps of carrying out reference scanning in a target visual field, collecting data of all observation numbers in original data of K space, and defining a start point of a slide complete data set of the K space hereby; carrying out updated scanning of the target visual field, combining a preset parameter pair, and collecting partial observation number data taking the upper half space of the K space as the principal or partial observation number data taking the lower half space of the K space as the principal; after each time of updated scanning, replacing and updating phase code lines in the slide complete data set of the K space corresponding to observation number data collected by each time of updated scanning; and carrying out two dimensional inverse Fourier transform of the updated slide complete data set of the K space, and calculating the absolute value of a value of a transform result and carrying out normalization processing to obtain an image matrix and present a corresponding image. With the adoption of scheme disclosed by the invention, the spatial resolution is maintained high and the time resolution is raised, and the scanning speed is accelerated.

Description

technical field [0001] The invention relates to the field of magnetic resonance imaging, in particular to a method and system for fast magnetic resonance imaging. Background technique [0002] As one of the main imaging techniques in radiology, magnetic resonance imaging is widely used in clinical medical diagnosis. Because magnetic resonance imaging has high soft tissue contrast, no radiation hazards, can realize multi-contrast mechanism imaging, can choose any orientation imaging, and can perform temperature imaging and other advantages. However, compared with imaging techniques such as computerized tomography (CT) and ultrasound scanning, the scanning speed of magnetic resonance is much slower, especially for open low-field magnetic resonance imaging systems suitable for interventional operations. [0003] At present, common MRI scanning acceleration methods mainly have the following defects: [0004] 1) K-space key hole technology. This technology first collects a ref...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/561
Inventor 邱本胜于帅杨巾英陈秀原
Owner 安徽福晴医疗装备有限公司
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