Quantitative magnetic resonance imaging parameter determination method, device, equipment and storage medium

A technology of magnetic resonance imaging and parameter determination, which is applied in the direction of using nuclear magnetic resonance imaging system for measurement, magnetic resonance measurement, magnetic variable measurement, etc. The effect of increasing sensitivity

Active Publication Date: 2022-03-29
SHENZHEN INST OF ADVANCED TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the embodiment of the present application provides a quantitative magnetic resonance imaging parameter determination method, device, equipment and storage medium to solve the technical problem of inaccurate transverse relaxation time in quantitative magnetic resonance imaging in the prior art

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  • Quantitative magnetic resonance imaging parameter determination method, device, equipment and storage medium
  • Quantitative magnetic resonance imaging parameter determination method, device, equipment and storage medium
  • Quantitative magnetic resonance imaging parameter determination method, device, equipment and storage medium

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Embodiment Construction

[0038] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

[0039] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude one or more other Presence or addition of features, wholes, steps, operations, elements, components and / or collections thereof.

[0040] In additi...

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Abstract

The application belongs to the technical field of magnetic resonance imaging, and provides a method, device, equipment and storage medium for determining quantitative magnetic resonance imaging parameters. The method comprises acquiring a plurality of magnetic resonance images of the subject based on a preset MRF pulse sequence, and extracting evolution signals of each voxel from the plurality of magnetic resonance images; Analog signal to determine the transverse relaxation time of each voxel; where the MRF pulse sequence includes multiple radio frequency pulse trains excited sequentially to excite the transverse magnetization vector of the subject; the evolved signal is used to characterize each voxel Variation in signal intensity across multiple magnetic resonance images. The method for determining quantitative magnetic resonance imaging parameters provided in the embodiments of the present application increases the sensitivity of detection of transverse relaxation time, and improves the accuracy of detection of tissue transverse relaxation time based on MRF.

Description

technical field [0001] The present application relates to the technical field of magnetic resonance imaging, in particular to a method, device, equipment and storage medium for determining quantitative magnetic resonance imaging parameters. Background technique [0002] Quantitative magnetic resonance imaging is tissue-specific for the detection of human pathological tissues, which can help doctors better distinguish between healthy tissues and pathological tissues, and has very important clinical diagnosis and research value. [0003] Magnetic resonance fingerprinting (Magnetic Resonance Fingerprinting, MRF) is a new type of rapid quantitative magnetic resonance imaging parameter determination technology. MRF uses a set of pseudo-randomly changing pulse sequences to scan the subject, so that different tissue types (voxels) from the subject present unique signal evolution (ie, fingerprints). Then, the obtained fingerprint is matched with multiple dictionary entries in the p...

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G01R33/54
CPCG01R33/54
Inventor王海峰邹莉娴刘新梁栋郑海荣
OwnerSHENZHEN INST OF ADVANCED TECH