The oscillating gradient spin-echo (OGSE) sequence has emerged as a promising diffusion-weighted imaging (DWI) technique for probing in vivo tissue microstructure. However, due to the finite duration of the diffusion gradients, there are some aspects of the signal model that should be considered in more detail. This work re-examines the derivation of the OGSE method to better understand how the properties of the selected MPG are reflected in the signal equation.
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