1. A method, comprising: obtaining a first image of first contrast agent uptake in non tissue of interest of a patient, wherein the first image is generated based on first data from a first imaging modality; obtaining a second image of second contrast agent uptake in tissue of interest and the non tissue of interest of the patient, wherein the second image is generated based on second data from a second different imaging modality; generating a first image mask based on the first image; generating a first feature image based on the second image and the first image mask; and displaying at least the first feature image.