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Table 3: MTR, ADC, and FA values in cerebral white matter of 14 healthy control subjects (in vivo) and in 5 postmortem control brains immediately after postmortem (fresh) and after formalin fixation (fixed)
In Vivo (mean) Postmortem, Fresh (mean) Postmortem, Fixed (mean)
MTR (%) 32.0 ± 1.5 30.6 ± 0.8 25.0 ± 0.5^a
ADC (10⁻³ mm²/s) 0.80 ± 0.07 0.25 ± 0.06^a 0.18 ± 0.05^a
FA 0.43 ± 0.02 0.22 ± 0.05^a 0.37 ± 0.04
a Significantly different from in vivo (P < .01).
	In Vivo (mean)	Postmortem, Fresh (mean)	Postmortem, Fixed (mean)
MTR (%)	32.0 ± 1.5	30.6 ± 0.8	25.0 ± 0.5^a
ADC (10⁻³ mm²/s)	0.80 ± 0.07	0.25 ± 0.06^a	0.18 ± 0.05^a
FA	0.43 ± 0.02	0.22 ± 0.05^a	0.37 ± 0.04