Table 1.

DWI technical aspects.

Minimize T1 saturation	TR (repetition time) should be long enough to avoid T1 saturation effects
Use short TE (echo time)	Increasing the bandwidth (up to a maximum of 1,500 MHz) using parallel imaging (SENSE factor up to 2) and by increasing the gradient intensity in the gradient lobes
Increase the number of adquisitions (NEX)	Noise is disruptive and the signal is additive
Decrease the field of view (FOV)	Minimum in phase encoding direction.
Do not increase the resolution in plane to levels where the noise increases	It will decrease the quality of ADC maps; enlarging the FOV may have a similar result
Use fat supression sequences	Increase the dynamic range of the DWI