Table 1.

Comparison of reconstructed hemoglobin amplitudes. The maximum (minimum) response amplitude was calculated for a region of interest in each of the DOT alone and fusion reconstructions for the five subjects. Regions of interest were manually defined in the motor cortex area. The BOLD calibration factor (α) was calculated as described in the text. The values shown are for the reconstructions at a regularization 1/Γ = 10 µM.

	DOT-only		Data fusion		BOLD calibration (α)
Subject	ΔHbO2	ΔHbR	ΔHbO2	ΔHbR
A	5.5 µM	−2.9µM	6.1µM	−1.2µM	−0.41 %-BOLD/µM
B	0.3 µM	−1.8µM	3.9µM	−1.5µM	−0.52 %-BOLD/µM
C	3.1 µM	−1.4µM	4.4µM	−0.7µM	−1.24 %-BOLD/µM
D	4.9 µM	−1.0µM	4.5µM	−0.3µM	−0.19 %-BOLD/µM
E	7.3 µM	−3.µM	1.6µM	−0.5µM	−0.39 %-BOLD/µM
Group	4.2 µM	−2.0µM	4.1µM	−0.9µM	−0.55 %-BOLD/µM