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Field of view increase in magnetic resonance imaging using nonlinear gradients and generalized iterative reconstruction
Field of view increase in magnetic resonance imaging using nonlinear gradients and generalized iterative reconstruction
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机译:使用非线性梯度和广义迭代重建的磁共振成像视野增加
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摘要
A method for increasing field of view (FOV) in magnetic resonance imaging includes determining linear field gradients of associated with a gradient coil of a magnetic resonance (MR) scanner and using the MR scanner to acquire a k-space dataset representative of a patient using a plurality of readout gradient amplitudes. An extended FOV image is generated based on the k-space dataset using an iterative reconstruction process to solve a forward model that incorporates a measurement of gradient distortion as a deviation from the linear field gradients.
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