FIGURE 1.  Examples of septal R-MM +ve (A) and R-MM –ve (B) polar images reflecting perfusion (⁸²Rb) and ¹⁸F-FDG uptake across the myocardium. Red reflects maintained tracer uptake, whereas yellow and green reflect decreased tracer uptake. (A) Note reduced septal ¹⁸F-FDG uptake with maintained perfusion. (B) Note large lateral wall perfusion defect and corresponding relatively preserved septal wall perfusion and ¹⁸F-FDG uptake. A = anterior wall; S = septal wall; L = lateral wall; P = posterior wall.