Gridding Procedures for Non-Cartesian K-space Trajectories
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چکیده
1. Introduction The data collected during an MRI experiment is the spatial frequency information of the proton density of the object being imaged. The data space is referred to as k-space and is related to the image of the object through a Fourier transform relationship. When a Cartesian trajectory is used to traverse k-space, data are acquired on equally spaced grid points in k-space and a fast algorithm, the Fast Fourier Transform algorithm (FFT), can be used to reconstruct images from the data.
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تاریخ انتشار 2003