Optical Coherence Tomography Analysis of Attenuated Plaques Detected by Intravascular Ultrasound in Patients with Acute Coronary Syndromes

Table 2

Intravascular ultrasound findings.

	Attenuated plaque	Nonattenuated plaque	P value
	(𝑛=41)	(𝑛=63)
Minimum lumen area site
EEM area, mm^2	12.4 ± 5.0	10.1 ± 4.4	0.016
Lumen area, mm^2	2.5 ± 1.0	2.6 ± 1.0	0.676
P&M CSA, mm^2	9.9 ± 4.6	7.5 ± 4.0	0.006
Plaque burden, %	78 ± 10	73 ± 9	0.022
Positive remodeling, %	22 (54)	19 (30)	0.017
Proximal reference site
EEM area, mm^2	12.5 ± 5.3	10.9 ± 4.4	0.112
Lumen area, mm^2	8.6 ± 3.7	7.4 ± 3.3	0.117
P&M area, mm^2	3.9 ± 1.9	3.5 ± 1.3	0.170
Plaque burden, %	31 ± 6	32 ± 6	0.500
Distal reference site
EEM area, mm^2	11.4 ± 5.4	9.9 ± 4.4	0.123
Lumen area, mm^2	8.1 ± 3.8	7.0 ± 3.3	0.133
P&M CSA, mm^2	3.4 ± 1.7	2.9 ± 1.3	0.144
Plaque burden, %	29 ± 5	29 ± 5	0.974

Values are given as mean ± standard deviation. EEM: external elastic membrane; CSA: cross-sectional area; P&M: plaque and media.