Fig. 2.

Quantitative comparison between sizes of fNADH lesions and their respective TTC staining. A: three RFA lesions on the surface of a rabbit heart. For direct visual and pixel profile comparison, gray scale of fNADH images was inverted to show previously dark lesions in white, whereas the color TTC images were converted to black and white (b/w). Intensity profiles across each lesion were then compared. The three graphs in B correspond to the intensity profile through each lesion. The bar graph shows that widths of the lesions were not significantly different when examined using fNADH and TTC staining.