Method for synthesis and reconstruction of output signal of quadrature coil of MRI (magnetic resonance imaging) system
A technology of output signals and quadrature coils, which is applied in the field of synthesis and reconstruction of quadrature coil output signals in MRI systems, can solve problems such as inflexibility and inability to obtain synthesis effects, and achieve ideal image effects
Active Publication Date: 2011-05-25
鑫高益医疗设备股份有限公司
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The present invention relates to a method for synthesis and reconstruction of output signals of a quadrature coil of an MRI (magnetic resonance imaging) system, which is characterized by comprising the following steps: 1, collecting two paths of output signals of the quadrature coil of the MRI system; 2, screening the original output signals S1 and S2 of the path I and the path Q of the quadrature coil and eliminating gain overflow layers; 2, analyzing first signals and finding out the position of maximum signal data in the first signals; 4, finding out the range of full width at half maximum of signal data with a maximum magnitude in the first signals; 5, respectively calculating phase differences of the signal data of the first signals and second signals at each point within the range of the full width at half maximum obtained in the further step, and averaging the phase differences to obtain a final phase difference; and 6, obtaining a final image through synthesizing and reconstructing the original output signals of the path I and the original output signals of the path Q by adopting the final phase difference obtained in the fifth step. Compared with the prior art, the image synthesized and reconstructed in the method has ideal quality.
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