Before revision:  In a side-by-side comparison , TIE Microscopy of MTs shows an improvement in signal-to-background-noise ratio of more than three times that of video-enhanced bright images .
After revision:  In a co-registered comparison of MT signal-to-background-noise ratio , TIE Microscopy of MTs shows an improvement in signal-to-background-noise ratio of more than three times that of video-enhanced bright images .