Clinical Study

Evaluation of Left Main Coronary Artery Using Optical Frequency Domain Imaging and Its Pitfalls

Table 3

OFDI analysis of the underlying plaque.

OFDI characteristics of the plaqueDiseased LM (n = 32)

 Fibrous plaque22 (68.7%)
 Fibrocalcific plaque10 (31.3%)
 Cholesterol crystals5 (15.6%)
 Thrombus4 (12.5%)
 Microchannels5 (15.6%)
 Disappearance of media22 (68.7%)

OFDI quantitative analysisNormal LM (n = 10)Diseased LM (n = 32)

 Intima thickness (mm)0.10 ± 0.020.53 ± 0.22
 Media thickness (mm)0.10 ± 0.020.14 ± 0.10
 Intima/media ratio1.0 ± 0.174.70 ± 2.51

CABG = coronary artery bypass graft; eGFR = estimated glomerular filtration rate; LA = lumen area; LAD = left anterior descending artery; LCX = left circumflex artery; LM = left main; OFDI = optical frequency domain imaging. diseased vs normal LM.