DTI Parameter Optimisation for Acquisition at 1.5T: SNR Analysis and Clinical Application
Figure 4
SNR computed with method 6 for images obtained with two repetitions of 12 DTI gradient directions. DTI-A (-value = 900 s/mm2, 50 slices) (red) is compared with DTI-B (-value = 1000 s/mm2, 40 slices) (blue). Note that DTI-B has been obtained with the last slice ( direction from feet to head) positioned as the last slice of DTI-A slice group.