Functional magnetic resonance imaging method, device and system as well as equipment and storage medium

A functional imaging and magnetic resonance technology, applied in the field of imaging, can solve the problems of uneven local magnetic field, inaccurate analysis and evaluation of functional areas, etc., and achieve the effect of maintaining spatial resolution, reducing data acquisition time, and improving spatial and temporal resolution.

Pending Publication Date: 2021-04-09
UNITED IMAGING RES INST OF INNOVATIVE MEDICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the eddy current on the surface of the device conductor generated by the high-speed switching of the gradient magnetic field, and the difference in the magnetic sensitivity of the human head tissue, especially near the air-containing cavity such as the paranasal sinuses, the local magnetic field is not uniform. The current traditional 2D EPI sequence is limited by the inherent sampling. Due to the limited influence, the generated image will produce geometric deformation in the phase encoding direction, making the analysis and evaluation of the functional area inaccurate

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  • Functional magnetic resonance imaging method, device and system as well as equipment and storage medium
  • Functional magnetic resonance imaging method, device and system as well as equipment and storage medium
  • Functional magnetic resonance imaging method, device and system as well as equipment and storage medium

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Embodiment 1

[0040] figure 1 It is a flowchart of a magnetic resonance functional imaging method provided in Embodiment 1 of the present invention. The magnetic resonance functional imaging method provided in this embodiment is applicable to magnetic resonance scanning imaging, for example, to magnetic resonance functional imaging based on blood oxygenation level dependent (BOLD). The method may be performed by a functional magnetic resonance imaging device, which may be implemented in software and / or hardware, for example, the functional magnetic resonance imaging device may be configured in a computer device. Such as figure 1 As shown, the method includes:

[0041] S110. Based on the preset equilibrium steady-state free precession sequence, control to perform magnetic resonance scanning on the target area of ​​the subject.

[0042] In this embodiment, based on a preset balanced steady state free precession sequence (Balanced SteadyState Free Precession, bSSFP) sequence, the magnetic r...

Embodiment 2

[0056] figure 2 It is a structural schematic diagram of a magnetic resonance functional imaging device provided in Embodiment 2 of the present invention. The functional magnetic resonance imaging device may be implemented in software and / or hardware, for example, the functional magnetic resonance imaging device may be configured in computer equipment. Such as figure 2 As shown, the device includes a magnetic resonance scanning module 210, a tissue feature determination module 220, and an image reconstruction module 230, wherein:

[0057] The magnetic resonance scanning module 210 is used to control the magnetic resonance scanning of the target area of ​​the subject based on the preset equilibrium steady-state free precession sequence;

[0058] The tissue feature determination module 220 is configured to acquire a plurality of magnetic resonance fingerprint data of the target area, and determine at least one tissue feature corresponding to the magnetic resonance fingerprint...

Embodiment 3

[0075] image 3 It is a schematic structural diagram of a computer device provided by Embodiment 3 of the present invention. image 3 A block diagram of an exemplary computer device 312 suitable for use in implementing embodiments of the invention is shown. image 3 The computer device 312 shown is only an example, and should not impose any limitation on the functions and scope of use of the embodiments of the present invention.

[0076] Such as image 3 As shown, computer device 312 takes the form of a general-purpose computing device. Components of computer device 312 may include, but are not limited to, one or more processors 316, system memory 328, bus 318 connecting various system components including system memory 328 and processor 316.

[0077] Bus 318 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, processor 316, or a local bus using any of a variety of bus struct...

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Abstract

The embodiment of the invention discloses a functional magnetic resonance imaging method, device and system as well as equipment and a storage medium. The method comprises the steps as follows: controlling the magnetic resonance scanning of a target region of an examinee based on a preset balanced steady-state free precession sequence; acquiring a plurality of magnetic resonance fingerprint data of the target region, and determining at least one tissue feature including T2* and corresponding to the magnetic resonance fingerprint data based on the magnetic resonance fingerprint data and a pre-constructed signal dictionary; and generating a magnetic resonance image based on the at least one tissue feature including T2*. According to the method provided by the embodiment of the invention, magnetic resonance fingerprint imaging and balanced steady-state free precession imaging are combined, so that a higher image signal-to-noise ratio and a deformation-free image are provided.

Description

technical field [0001] Embodiments of the present invention relate to the field of imaging technology, and in particular to a magnetic resonance functional imaging method, device, equipment, storage medium and system. Background technique [0002] Functional magnetic resonance imaging (fMRI) is a non-invasive imaging method used to measure hemodynamic changes caused by neuronal activity in the brain. [0003] Functional magnetic resonance imaging (fMRI) research based on blood oxygen level dependence (BOLD) is one of the most important technical means used in neuroscience research in recent years. The BOLD-fMRI method is based on detecting changes in cerebral hemodynamics to obtain images of brain activation to evaluate brain function. In the activated brain tissue area, the level of nerve excitability is enhanced, and the local cerebral blood flow and oxygen consumption are increased, resulting in an increase in venous blood oxygen concentration in the activated area and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/055A61B5/00G06T11/00
CPCA61B5/0042A61B5/055A61B2576/026G06T11/003
Inventor 李若兰
Owner UNITED IMAGING RES INST OF INNOVATIVE MEDICAL EQUIP
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