FIGURE 2. Polar map analysis of ¹⁸F-FDG PET metabolic imaging (A) and ²⁰¹Tl perfusion imaging (B) and NOGA mapping (C, unipolar voltage; D, LLS) of patient with severe stenosis of diagonal branch of left anterior descending artery with perfusion/metabolism mismatch in basal and middle anterior and anterolateral walls with unipolar voltage values within normal range and reduced LLS values.