Parallel Line Scan Diffusion Imaging with 2D Acceleration
نویسندگان
چکیده
Introduction Line scan diffusion imaging (LSDI) [1] is a one-dimensional Fourier encoding techniques. The absence of phase encoding provides considerable robustness against motion and immunity to artifacts due to magnetic field inhomogeneities and susceptibility. Parallel imaging has been successfully applied to accelerate 2D and 3D Fourier imaging by reducing phase encoding steps. Here we propose a novel line scan diffusion imaging technique with parallel imaging acceleration along two directions. The standard 90° and 180° pulses employed in line scan imaging are modulated with a cosine waveform to yield double column excitation in two dimensions (2D) simultaneously. Four-fold acceleration can be achieved, without any SNR loss.
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