Superimposed images (right) obtained by overlaying ¹²³I images (left) on ²⁰¹Tl myocardial perfusion images (middle) of the same rat indicate localization of ¹²³I activity to the anterolateral wall (arrows), the injection site of a dual-gene adenovirus that expresses sodium/iodide symporter protein and enhanced green fluorescent protein at similar levels.

SEE PAGE 652.