MRI from k-Space to Parallel Imaging
Parallel imaging is a relatively new MRI technique that employs parallel data acquisition from several receiver coil elements in order to reduce the number of phase-encoding steps and, thus, to increase imaging speed. To discuss acquisition techniques and image reconstruction algorithms used in parallel MRI, the concepts of k-space and of the Fourier transform introduced in this chapter are indispensable. Based on these concepts, parallel imaging from its historic origins to current state-of-the-art techniques is presented in the following chapters of the first part of this book.
KeywordsRadio Frequency Image Space Parallel Imaging Larmor Frequency Radio Frequency Signal
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