Table 1.

Coefficient of variation (%) of parameter estimates calculated from repeat measures. Results from five of the F344 strain.$$

	IVIM diffusive			VA		VA ballistic
Region	$f$	$D$	$D^{\mathrm{*}}$	$v$	$l$	$v$	$l$
Striatum	10.2	1.84	13.0	39.3	79.1	16.8	32.2
Temporal cortex	41.1	5.18	118	59.4	137	19.4	126
Cingulate cortex	19.2	1.55	18.4	20.9	25.0	26.7	54.2
Entorhinal cortex	33.2	3.40	70.2	36.2	147	22.4	85.6
Frontal cortex	72.9	12.8	95.9	81.8	245	25.7	130
Motor cortex	46.3	2.37	66.3	43.8	121	44.5	76.6
Parietal cortex	11.6	0.508	27.4	50.8	70.0	27.3	28.2
Hippocampus	37.1	3.86	80.8	16.5	97.0	13.4	82.3
Hypothalamus	33.1	4.67	21.2	46.0	64.6	8.77	26.3
Thalamus	19.4	2.37	69.0	63.3	110	19.5	90.2
Mean	32.0	3.70	58.0	45.8	109	22.4	73.1

$f$: perfusion fraction; $D$: diffusion coefficient; $D^{\mathrm{*}}$: pseudo-diffusion coefficient (all from the IVIM diffusive model fit); $v$: average blood velocity (from the VA and VA ballistic models); $l$: capillary segment length (from $D^{\mathrm{*}}=vl/6$).