Table 2.

Performance of DTI acceleration schemes in terms of fiber orientation, FA and MD errors for an acceleration factor R = 4.

Metric		Mean Δθ	RMS ΔFA	RMS ΔMD
Scheme		(deg)	(10−2)	(10−7 cm2/s)
Model-Based		6.63 ± 0.04	4.86 ± 0.07	1.90 ± 0.02
Compressed Sensing		7.74 ± 0.04	5.71 ± 0.04	2.27 ± 0.01
Asymmetrical Sampling		8.05 ± 0.08	6.00 ± 0.05	3.73 ± 0.02
Low Resolution		7.17 ± 0.04	5.43 ± 0.03	2.93 ± 0.01
Fewer Directions		8.89 ± 0.14	7.22 ± 0.03	0.89 ± 0.05

Entries are mean ± SEM for the 10 test datasets examined.