Method, device, computer equipment and computer-readable storage medium for phase correction of magnetic resonance echo signals
A technology of echo signal and magnetic resonance, which is applied in magnetic resonance measurement, measurement using nuclear magnetic resonance image system, and measurement equipment, etc., which can solve the phase jitter of magnetic resonance echo signal, which affects the accuracy of signal acquisition and the final result of nuclear magnetic resonance imaging And other issues
Active Publication Date: 2021-04-20
安徽峻德医疗科技有限公司
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[0004] In order to solve the existing nuclear magnetic resonance system based on a generalized hardware platform, there will be a certain phase jitter phenomenon in the collected magnetic resonance echo signals, which will affect the accuracy of signal collection and the final nuclear magnetic resonance imaging results. The object of the present invention To provide a phase correction method, device, computer equipment, and computer-readable storage medium for magnetic resonance echo signals
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[0085] The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments. It should be noted here that although the descriptions of these embodiments are used to help the understanding of the present invention, they are not intended to limit the present invention. Specific structural and functional details disclosed herein are for purposes of describing example embodiments of the invention only. However, the invention may be embodied in many alternative forms and should not be construed as limited to the embodiments set forth herein.
[0086] It will be understood that, although the terms first, second etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one unit from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing f...
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The present invention relates to the technical field of nuclear magnetic resonance imaging, and discloses a phase correction method, device, computer equipment, and computer-readable storage medium for magnetic resonance echo signals, which can perform phase correction on collected echo signals from the perspective of software, namely Acquiring a plurality of magnetic resonance echo signals including ringing signals first, and then using the ringing signal with the largest signal strength as a reference signal to estimate the compensation phase of each magnetic resonance echo signal in the plurality of magnetic resonance echo signals , and finally correct the phase of the magnetic resonance echo signal of the non-ringing signal according to the compensation phase, so that the phase jitter phenomenon can be obviously eliminated, the accuracy of signal acquisition will not be affected, and the corrected magnetic resonance echo signal can be used for follow-up The reconstruction avoids the introduction of artifacts due to phase jitter and ensures the correctness of the final MRI results.
Description
technical field [0001] The present invention belongs to the technical field of nuclear magnetic resonance imaging, and in particular relates to magnetic resonance spectrometer technology, in particular to a phase correction method, device, computer equipment and computer-readable storage medium for magnetic resonance echo signals. Background technique [0002] The human body contains a lot of hydrogen atoms. These hydrogen atoms themselves have magnetic properties, so that when the human body is placed in a strong and uniform static magnetic field, the hydrogen atoms will absorb energy (excitation process) and arrange neatly in accordance with the direction of the magnetic field. When the magnetic field disappears, the energy absorbed by the nucleus will be released and reflected by the coil current, which is the echo signal that needs to be collected in the magnetic resonance spectrometer technology. In addition, in the actual excitation process, not only the uniform magnet...
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IPC IPC(8): G01R33/56G01R33/565G01R33/58G01R23/16
CPCG01R23/16G01R33/5615G01R33/565G01R33/583
Inventor 吴子岳罗海吴畏王伟谦陈潇叶洋
Owner 安徽峻德医疗科技有限公司