Figure 6.

Improved detection of metastases with 24 h mangafodipir-enhanced imaging. Multiple metastases (arrows) are seen with high lesion-to-liver contrast on 20 min post-mangafodipir T1w 2D GRE images (a). However several additional lesions are only visible on the corresponding images obtained 24 h after contrast (b) when the background liver signal has returned to normal, due to retained contrast in the compressed liver tissue at the periphery of the lesions. (Images courtesy of Dr J. Healy.)