Figure 1. PET/CT of angiotensin II type 1 receptors (AT1R) in healthy pigs.

(A.) shows anterior maximum intensity projections (MIP, left), transaxial fusion images (middle) and reangulated PET images (right) (SA, short axis; HL, horizontal long axis; VL, vertical long axis), using AT1R ligand [11C]-KR31173 (top row), and myocardial perfusion tracer [13N]-ammonia (NH3) (bottom row). (B.) shows myocardial kinetics of [11C]-KR31173 at baseline, and (C.) after intraveous AT1R blockade (representative coronal PET slices on top, time activity curves for arterial blood (pink) and myocardium (cyan) on bottom).