Table 1. The change in absolute BOLD SI and ν_avg with hypoxia for each fetus.

Dam	Fetus	Gas condition	Absolute BOLD SIa		Change in BOLD SI with hypoxia (%)		νavg (mm/s)a	Change in νavg with hypoxia (%)b
			Brain	Liver	Brain	Liver
1	1	100% O2	79.9±0.5	52.4±1.1	8±6	69±3
		8% O2	73.5±5.2	16.4±1.6
	2	100% O2	73.5±1.7	18.6±0.5	15±1	36±10
		8% O2	62.4±0.9	11.9±1.9
2	3	100% O2	108.7±0.5	25.2±0.3	16±1	59±8
		8% O2	91.8±1.2	10.2±1.9
	4	100% O2	124.6±1.8	28.7±2.8	14±2	61±4
		8% O2	107.4±1.0	11.2±1.9
3	5	100% O2	118.8±3.5	23.7±1.0	17±6	49±2
		8% O2	99.1±10.1	12.2±1.0
	6	100% O2	105.8±3.5	33.7±2.6	17±13	55±6
		8% O2	87.2±10.8	15.1±0.8
4	7	100% O2	109.0±11.1	20.7±3.3	20±18	20±19
		8% O2	87.0±17.6	16.6±3.3
5	8	100% O2	91.9±2.0	23.3±6.5	8±4	40±12
		8% O2	84.9±2.4	14.0±4.5
	9	100% O2	87.3±1.9	19.0±4.2	8±4	37±6
		8% O2	80.0±2.1	12.1±3.5
	10	100% O2	80.1±3.7	14.6±1.7	6±3	32±17
		8% O2	75.3±1.2	9.7±1.5
6	11	100% O2	108.1±5.5	32.7±14.2	10±6	42±32
		8% O2	97.0±1.8	18.8±2.3
7	12	100% O2					17.4±0.5	22±8
		8% O2					22.5±2.0
8	13	100% O2					16.7±0.8	9±1
		8% O2					18.2±1.0
9	14	100% O2					11.6±1.5	13±13
		8% O2					13.4±0.4
10	15	100% O2					17.0±1.6	14±5
		8% O2					19.8±0.6
11	16	100% O2					23.3±0.9	13±6
		8% O2					26.8±0.8

BOLD, blood oxygen level-dependent; MCA, middle cerebral artery; PCA, posterior cerebral artery; SI, signal intensity.

^aMean±s.d. over three gas cycles.

^bν_avg recorded at either the PCA or the MCA.