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Schematic sequence diagrams show diffusion preparation followed by single-shot echo-planar imaging readout. RF = radiofrequency, TE = echo time. (a) When using BP diffusion encoding, a minimum echo time of 73 msec is required. (b) When using MP diffusion encoding, an echo time as low as 63 msec can be reached. Echo time depends on the protocol (eg, on maximum b value and imaging parameters). A navigator can be added for the RT sequence.
