TABLE 1.

Absolute cerebral concentrations and oxygen saturation of hemoglobin in anesthetized newborn piglets and rats measured with non-invasive FD-NIRS in vivo.

References	Instr.	f (MHz)	Method	# of λ	[Hb] (μM)	[HbO2] (μM)	[HbT] (μM)	StO2 (%)	Age (days)	Animal model
Ntziachristos et al., 1997	NIM	200	SD (phase): ∼2 cm	2	–	–	–	80	1–5	Piglet
Fantini et al., 1999	ISS	110	MD: 1.5–3 cm	2	17	26	43	60	11 ± 1	Piglet
Zhang et al., 2000	ISS	110	MD: 1.5–3 cm	2	15	30	45	67	9 ± 2	Piglet
Culver et al., 2003	Own	70	MD: 0.3–1 cm	3	30	70	100	70	Adult	Rat

Instr., instrument; NIM, NIM (Near Infrared Monitoring), Inc. (Philadelphia, PA, United States); ISS, ISS, Inc. (Champaign, IL, United States); SD, single distance; MD, multi distance.