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Magnetic resonant part K data image reestablishing method based on compound two dimension singular sprectrum analysis

A data image and singular spectrum technology, applied in the field of medical imaging detection and rapid magnetic resonance imaging, can solve the problems of misdiagnosis by clinical diagnosis doctors, hindering the door of medical clinical application, and restricting the development of medical imaging detection technology.

Inactive Publication Date: 2007-10-10
骆建华
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Problems solved by technology

The distortion caused by these shortcomings is enough to make the clinical diagnosis doctor misdiagnose, so that it has always hindered them from entering the door of clinical application of medicine, which has brought great inconvenience to people's work and life, and restricted them to a certain extent. Further development of medical imaging detection technology

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  • Magnetic resonant part K data image reestablishing method based on compound two dimension singular sprectrum analysis
  • Magnetic resonant part K data image reestablishing method based on compound two dimension singular sprectrum analysis
  • Magnetic resonant part K data image reestablishing method based on compound two dimension singular sprectrum analysis

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Embodiment Construction

[0085] In order to understand the technical content of the present invention more clearly, the following examples are given in detail.

[0086] The present invention collects part of the K data from the preset image space range in the actual magnetic resonance equipment, and adopts a part of the K space data imaging method in the form of a two-dimensional rectangular grid, so it is called direct reconstruction using the complex two-Vitch heterospectrum analysis method The magnetic resonance imaging method is complex two-dimensional Singular Spectrum Analysis (2DSSA, 2 Dimension Singular Spectrum Analysis).

[0087] Before elaborating the overall working process and working principle of the present invention, in order to clarify its technical meaning more clearly, the following definitions need to be given at first:

[0088] Definition 1: Given a real or complex digital signal, the point whose difference is not zero is a singular point, and the difference value on the singular ...

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Abstract

The present invention relates to a magnetic resonance partial K data image reconstruction method based on complex two-dimensional singular spectral analysis. Said method includes the following steps: collecting partial K data from preset image space range in magnetic resonance imaging scanner, making zeroization imaging treatment of said partial K data, according to the approximate image obtained by zeroization imaging treatment and partial K data making model parameter estimation, and utilizing mathematical model of magnetic resonance image of complex coefficient weighted two-dimensional singular function and complex two-dimensional singular spectral analysis model making reconstruction of magnetic resonance complex image.

Description

technical field [0001] The present invention relates to the technical field of medical imaging detection, in particular to the technical field of fast magnetic resonance imaging, in particular to a method for image reconstruction of magnetic resonance partial K data based on complex two-Vitch heterospectral analysis. Background technique [0002] With the continuous development of modern medical technology, magnetic resonance imaging (MRI) technology has become an indispensable means in the field of medical imaging detection. The magnetic resonance signal space (original data space) is called K space, which is the Fourier transform space. The K space sampling signal is subjected to inverse Fourier transform and then moduloed to obtain a nuclear magnetic resonance (MR) image. The methods to achieve fast imaging mainly include improving the grade of hardware equipment (such as increasing the strength of the main magnetic field), adopting fast strategies (such as FLASH, EPI, et...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T11/00
CPCG01R33/561
Inventor 骆建华朱跃敏
Owner 骆建华