Magnetic resonance imaging method and device

A magnetic resonance imaging and magnetic resonance image technology, applied in the field of medical imaging, can solve the problems of limiting the application of clinical magnetic resonance imaging and long reconstruction time, and achieve the effect of fast image reconstruction and fast reconstruction speed

Active Publication Date: 2018-07-27
SHANGHAI NEUSOFT MEDICAL TECH LTD
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Problems solved by technology

However, the reconstruction time of these existing methods is long, which limits their application in clinical MRI.

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  • Magnetic resonance imaging method and device
  • Magnetic resonance imaging method and device
  • Magnetic resonance imaging method and device

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Embodiment Construction

[0074] At present, magnetic resonance imaging has the characteristics of multi-contrast imaging, and can directly make tomographic images of cross-section, sagittal plane, coronal plane and various oblique planes; moreover, the magnetic resonance images reconstructed by magnetic resonance imaging technology can provide rich , comprehensive information, and a significant contribution to disease diagnosis; in addition, using magnetic resonance imaging technology, there is no need to inject contrast agents, and there is no ionizing radiation. Therefore, based on the above advantages, magnetic resonance imaging is widely used in the process of medical diagnosis. However, magnetic resonance imaging often requires a long scan time, resulting in a slow speed of magnetic resonance imaging, which limits the promotion prospect of magnetic resonance imaging.

[0075] While ensuring the quality of the magnetic resonance image obtained by magnetic resonance imaging, in order to increase th...

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Abstract

The application discloses a magnetic resonance imaging method and device. According to the method and device, k-space is divided into multiple areas in a phase encoding direction; each area is imparted a different acquisition density during data acquisition; therefore, variable density acquisition can be implemented for the k-space; the same area may be imparted the uniform acquisition density sothat k-space data of the same area can be subjected to areal image reconstruction by means of conventional parallel reconstruction; a final magnetic resonance image can be formed by using areal imagesof the multiple areas. Therefore, in the application, total image reconstruction time is equal to a product of multiplying the number of the areas by the time of the conventional parallel reconstruction. Compared with the prior art where magnetic resonance imaging performs variable density acquisition, the magnetic resonance imaging method and device have short total image reconstruction time andhigh reconstruction speed and accordingly can provide quick image reconstruction for k-space data under variable density acquisition.

Description

technical field [0001] The present application relates to the technical field of medical imaging, in particular to a magnetic resonance imaging method and device. Background technique [0002] Compared with other imaging equipment, such as computerized tomography (Computed Tomography, CT), positron emission (Positron Emission Computed Tomography, PET), etc., magnetic resonance imaging (Magnetic Resonance Imaging, MRI) is a multi-contrast imaging technology, It can obtain a variety of contrast images, providing richer information for diagnosis. However, MRI requires a long scan time, which limits the acquisition of MRI multi-contrast images. [0003] In order to increase the rate of MRI and reduce the scanning time of MRI, parallel imaging method came into being. [0004] At present, parallel imaging methods widely used in the industry mainly include parallel imaging methods such as Sensitivity Encoding (Sensitivity Encoding, SENSE) and Generalized Autocalibrating Partially...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/055
CPCA61B5/055
Inventor 黄峰孙爱琦王一然
Owner SHANGHAI NEUSOFT MEDICAL TECH LTD
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