Image distortion correction method based on single sweep quadrature space-time coding magnetic resonance imaging
A technology of orthogonal space-time coding and image distortion correction, which is applied in the direction of measuring magnetic variables, measuring devices, instruments, etc., can solve the problem of image quality degradation and achieve good stability and high efficiency
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[0053] We demonstrate the single-scan orthogonal space-time coding method and the distortion correction based on this method on living SD rats to verify the feasibility of the present invention. The experimental test was performed under a Varian7T imager (Agilent Technologies, Santa Clara, CA, USA). The imaging sample used in the experiment is about 250 grams of live SD rats. Before the experiment, the rats were injected anesthetized with a 10% chloral hydrate solution at a ratio of 0.4mg / 100g, and the rats were in a dormant state. experiment of. Before the experiment, the rat was fixed on the experimental bed and then introduced into the imager. On the operating table of the magnetic resonance imager, open the corresponding operating software of the imager to locate the rat part of interest. Here we choose to image the rat’s brain on the corronal surface. After the imaging area is positioned, we perform tuning, automatic shimming, frequency and power correc...
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