Fig. 3From: The TRUTH confirmed: validation of an intraindividual comparison of gadobutrol and gadoteridol for imaging of glioblastoma using quantitative enhancement analysisThe quantitative enhancement (QE) analysis system considers both unenhanced (a) and contrast-enhanced (b) T1-weighted images when calculating the QE map (c) and thus knows that regions that are bright on the contrast-enhanced image (arrow) are not enhancing if they are equivalently bright in the unenhanced imageBack to article page