Fig. 4

Representative 2-dimensional and 3-dimensional plaque assessment on T1-weighted imaging. Coronary plaques with 2D^low3D^high in the proximal right coronary artery (2D-PMR, 1.14; 3Di-PMR, 237 PMR*mm³; Patient A: a–e), 2D^high3D^low in the proximal left anterior descending artery (LAD) (2D-PMR, 1.50; 3Di-PMR, 43 PMR*mm³; Patient B: f–j), and 2D^high3D^high in the proximal LAD (2D-PMR, 1.96; 3Di-PMR, 344 PMR*mm³; Patient C: k–o). Computed tomography angiography (CTA) images (a, f, k), and axial images (b, g, l), sagittal images (c, h, m), color maps (d, I, n), and 3D region of interests (3D plaque: e, j, n) on T1w images are shown. Yellow circles indicate percutaneous coronary intervention target lesion sites on CTA. Yellow arrows indicate lesions on T1w imaging corresponding to a lesion on angiography that underwent intervention