Fig. 3

Representative image from a 67-year-old man diagnosed with T2DM for 8 years (TIR = 50%). a: CCTA showing multiple mixed plaques (short arrows) and non-calcified plaques (arrows) in LAD, and the transverse section of lumen showing a napkin sign (long arrow), indicating vulnerable plaque, b: DSA showing multiple stenosis of LAD lumen (arrow); c: IVUS showed levels corresponding to the CCTA napkin sign, mixed plaques in the LAD wall with high echogenicity of spotty calcifications (long arrow), and low echogenicity of lipid plaques (short arrow). Notes: TIR: time in range (the percentage of time of blood glucose levels in a target range); LAD: left anterior descending coronary artery