Fig. 3.

Changes of ¹⁸F-FDG distribution characteristics between resting and exercise imaging. By patientanalysis, the prevalence rate of ¹⁸F-FDGabnormalities increases from 48.4% (15/31) on resting imaging to80.6% (25/31) (P = 0.004) on exercise imaging in CAD patient (a) nevertheless it does not significantly change in patients without CAD [4.8% (1/21) vs 4.8% (1/21) P = NS] (b) By vascular analysis, the prevalence rate of ¹⁸F-FDG abnormalities on exercise imaging is significantly higher than that on resting imaging in stenotic coronaries [56.9% (33/58) vs 34.5% (21/58), P < 0.0001] (c) but not in normal coronaries [2.0% (2/98) vs 2.0% (2/98), P = NS] (d). (*)Indicates the increased ¹⁸ F-FDG uptake is exclusively located on the basal segments or papillary muscle