TABLE 3.

Average lifetimes and intensity ratios of the different tissue categories. Gray cells indicate comparisons with statistical significance (p < 0.01).

	Average lifetime (ns)			Intensity ratios (a.u.)
Tissue	390-nm	470-nm	542-nm	390-nm	470-nm	542-nm
Tumor	3.83 ± 0.30	3.62 ± 0.55	3.28 ± 0.73	0.09 ± 0.03	0.50 ± 0.05	0.41 ± 0.06
Cortex	3.75 ± 0.41	3.73 ± 0.45	3.45 ± 0.50	0.07 ± 0.04	0.47 ± 0.07	0.45 ± 0.08
White matter	4.16 ± 0.34	4.59 ± 0.39	4.25 ± 0.47	0.15 ± 0.05	0.48 ± 0.04	0.37 ± 0.06
P (t-c)	0.659	0.465	0.348	0.084	0.254	0.105
P (t-w)	0.007	5.06 ×10−6	1.09 ×10−4	2.05 ×10−4	0.929	0.002
P (c-w)	0.002	1.20 ×10−7	5.03 ×10−6	4.59 ×10−5	0.083	0.019

t – tumor; c – cortex; w – white matter