Description of parallel imaging in MRI using multiple coils.
A general formulation for parallel imaging using multiple coils is derived from the Fourier transform of coil sensitivity functions. This formulation provides a unified account for developed parallel imaging techniques such as subencoding, simultaneous acquisition of spatial harmonics (SMASH), and sensitivity encoding (SENSE), and indicates a guideline for coil configuration and k-space sampling in parallel imaging. The views that can be acquired simultaneously in parallel imaging have to be contained in the spatial frequency band of coil sensitivity functions.
Wang
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Radiology Department, Weill Medical College of Cornell University, New York, New York 10021, USA. wang@mri.med.cornell.edu
D004867:Equipment Design; D005583:Fourier Analysis; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging / Q000295:instrumentation / Q000379:methods*; D008432:Mathematical Computing; D008962:Models, Theoretical; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation