Coronary morphological features in women with non-ST-segment elevation MINOCA and MI-CAD as assessed by optical coherence tomography

Figures

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  Figure 1. Representative optical coherence tomography images. Plaque rupture: In both MINOCA and MI-CAD, the fibrous cap disruption was observed (arrows) in the lipidic plaque (asterisks). Ruptured cavity size was smaller and lumen area was larger in MINOCA than those in MI-CAD. Plaque erosion (thrombus without plaque rupture): In both MINOCA and MI-CAD, thrombi (arrows) were observed with underlying non-lipidic plaque. Thrombi was smaller in MINOCA than those in MI-CAD. In MINOCA, there is a luminal irregularity, which may indicate mural thrombus (white triangles). Intraplaque haemorrhage: In both MINOCA and MI-CAD, similar low intensity regions without attenuation (asterisks), but with an overlying fibrous cap were observed. Layered plaque: In both MINOCA and MI-CAD, there was a layered plaque having heterogeneous and low intensity signal (arrows) on top of the lipidic plaque. Lumen area was larger in MINOCA than those in MI-CAD. A tangential artefact mimicking rupture was observed (an arrowhead). MI-CAD, myocardial infarction with obstructive coronary artery disease; MINOCA, myocardial infarction with non-obstructive coronary artery disease.

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  Figure 2. Final diagnoses in women with non-ST-segment elevation myocardial infarction with vs. without obstructive coronary artery disease. Final diagnoses in women with non-ST-segment elevation myocardial infarction with vs. without obstructive coronary artery disease were summarized in pie graphs (left: MINOCA, right: MI-CAD). Number of each type of cases stratified by angiographic diameter stenosis was shown in bar graphs. MI-CAD, myocardial infarction with obstructive coronary artery disease; MINOCA, myocardial infarction with non-obstructive coronary artery disease.