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On OCT MAC appears as regions with homogeneous low signal intensity and sharply demarcated border zones. (A-C) Cross-sections of the coronary arteries. (A) MAC spans more than a half of the circumference (12 to 19 o’clock); (B) Extensive, partly eccentric MAC (13 to 15 o’clock); (C) Highly eccentric MAC (10 to 12 o’clock). Note the smooth and regular intima in all three images. Courtesy and Copyright, Abbott, Inc.
