Table 2.

CFPAC-1:H6c7 and PANC-1:H6c7 signal-to-noise ratios. CFPAC-1:H6c7 (left-hand side) and PANC-1:H6c7 (right-hand side) signal-to-noise ratios (SNRs). SNRs were calculated by dividing the mean fluorescence of CFPAC-1 and PANC-1 (cancer cell line) by the mean fluorescence of H6c7 (representing normal pancreas). Underlined value = SNR ≥ 5.0. For both cell lines the highest SNRs were seen at longer incubation times with lower ALA concentrations.

PANC-1 Signal-to-Noise Ratio (SNR)		ALA concentration (mM)
		0.25	0.50	0.75	1.00
Incubation time (h)	4	0.7	0.3	0.2	0.2
	24	2.0	1.4	0.4	0.2