Fig. 2

Representative case of intravascular ultrasound-detected attenuated plaque. A 70-year-old man with stable coronary artery disease is shown to have severe coronary artery stenosis on angiography (A). Intravascular ultrasound examination B–F shows a severely calcified plaque (maximum calcification angle, 275°) in the proximal left descending artery (E). In this case, the serum 1,5-anhydro-d-glucitol level is 8.3 µg/mL