Research Article

A Ratiometric Fluorescence Imaging System for Surgical Guidance

Figure 3

(a), (c) Relative PpIX fluorescence intensities as a function of PpIX concentration before and (b), (d) after application of the double-ratio algorithm, measured in the phantoms under different conditions. Linear regression fits to the combined data are shown in the corrected plots.
532368.fig.003a
(a)
532368.fig.003b
(b)
532368.fig.003c
(c)
532368.fig.003d
(d)