# MRI and k-space traversal

by chatsash
Tags: kspace, traversal
 P: 581 This will be covered in any basic treatment of image reconstruction with magnetic resonance imaging. Very briefly, a spatially varying magnetic field is applied which causes a spatially varying Larmor frequency. Thus information about the source of radiation can be inferred from the frequency of that radiation. As you may or may not know, for EM radiation the angular frequency $\omega = ck$, so frequency $f$, angular frequency $\omega$, and $k$ (the wavenumber or magnitude of the wavevector), may all be used somewhat interchangeably.