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Scanning sequence determining method and device, computer equipment and storage medium

A technology for scanning sequence and determining method, which is applied in the direction of measuring device, magnetic variable measurement, instrument, etc., and can solve the problem of low accuracy of magnetic resonance images

Active Publication Date: 2019-11-05
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Based on this, it is necessary to provide a scanning sequence determination method, device, computer equipment and storage medium for the problem that the accuracy of the magnetic resonance image obtained according to the traditional gradient pulse sequence configuration method is not high.

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  • Scanning sequence determining method and device, computer equipment and storage medium
  • Scanning sequence determining method and device, computer equipment and storage medium
  • Scanning sequence determining method and device, computer equipment and storage medium

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Embodiment Construction

[0043] The scan sequence determination method, device, device and storage medium provided by the present application aim to solve the problem of low accuracy of magnetic resonance images obtained by traditional gradient pulse sequence configuration methods. The technical solution of the present application and how the technical solution of the present application solves the above technical problems will be described in detail below through embodiments and in conjunction with the accompanying drawings. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0044] It should be noted that, the scan sequence determination method provided by the embodiment of the present application can be executed by a scan sequence determination device such as a magnetic resonance spectrometer system, which can be implemented as a gradient pulse by software, hardware or a combination of software a...

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Abstract

The invention relates to a scanning sequence determining method and device, computer equipment and a storage medium. A terminal obtains initial gradient pulse configuration according to a preset pulseconfiguration rule which is used to set the amplitude and climbing rate of gradient pulse, the globally maximal PNS (peripheral nerve stimulation) value in initial gradient pulse configuration is determined according to a PNS model of a target to be detected, and further, target gradient pulse configuration is determined according to the globally maximal PNS value and initial gradient pulse configuration. Namely, the target gradient pulse configuration is determined according to the globally maximal PNS value in initial gradient pulse configuration determined by the PNS model as well as the initial gradient pulse configuration, condition that the corresponding gradient pulse amplitude and climbing rate in all clinical application scenes are limited in one manner is avoided, and the problem that the quality of a magnetic resonance image is reduced due to the fact that the amplitude and climbing rate of the maximal gradient pulse are not used fully is solved.

Description

technical field [0001] The present invention relates to the technical field of magnetic resonance imaging (MRI for short), in particular to a gradient pulse configuration method, device, computer equipment and storage medium. Background technique [0002] Magnetic resonance imaging is a type of tomography, which uses magnetic resonance phenomena to obtain electromagnetic signals from the human body and reconstruct human body information. The basic principle of its imaging is: atomic nuclei are positively charged, and the atomic nuclei of many elements, such as 1H, 19FT and 31P, undergo spin motion. Normally, the arrangement of nuclear spin axes is random, but when it is placed in an external magnetic field, the nuclear spin spatial orientation transitions from disorder to order. In this way, the core of the spin also precesses around the external magnetic field vector at the angle between the spin axis and the vector direction of the external magnetic field. down rotation....

Claims

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Application Information

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IPC IPC(8): G01R33/54A61B5/055
CPCG01R33/54A61B5/055G01R33/288G01R33/543G01R33/3852A61B5/0035G01R33/38
Inventor 龚小茂
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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