Cholesterol crystals in non-culprit plaques of STEMI patients: A 3-vessel OCT study

Coronary artery calcification and plaque stability： an optical coherence tomography study

“…A microchannel was defined as a black hole with a diameter of 50–300 mm within a plaque that was present on at least 3 consecutive frames [ 19 ]. The existence of cholesterol crystals was defined by the presence of linear and highly reflective structures within the plaques [ 20 ]. Calcification was identified by the presence of well delineated, low back-scattering heterogeneous regions in the OCT images [ 21 ].…”