Ohira H, et al. – Researchers undertook this investigation to study the inter– and intraobserver agreement and examine factors that led to important discrepancies between readers. They found that the interobserver agreement of cardiac ¹⁸F–FDG uptake image patterns was moderate. However, an agreement was better regarding the overall interpretation of cardiac sarcoidosis (CS). Detailed prescan dietary preparation appeared to improve interobserver agreement.