Diffusion MRI acquisition for tractography : Diffusion sequences
This is the second of three chapters on diffusion MRI acquisition for tractography. This chapter covers image formation, which is largely independent of the creation of diffusion contrast (Chapter 6). The Stejskal-Tanner diffusion experiments in the 1960s were bulk NMR measurements of diffusion; the addition of spatial localization, i.e., imaging, would follow decades later. The excitation and rea