Role of the CHADS₂ Score in the Evaluation of Carotid Atherosclerosis in Patients with Atrial Fibrillation Undergoing Carotid Artery Ultrasonography

Table 4

Correlation analysis of CHADS₂ score, carotid ultrasound, and VVI indices.

	CHADS2 score
	r	P
Plaque index	0.297	0.002
Mean IMT (mm)	0.272	<0.001
Max IMT (mm)	0.337	<0.001
Ds (cm)	0.345	<0.001
Dd (cm)	0.346	<0.001
Ep (kPa)	0.334	0.001
	0.278	0.001
DC (mmH^−1×10^−2)	−0.157	0.047
AC (mm2/kPa)	0.252	0.001
β	0.259	0.001
Vs (cm/s)	−0.315	<0.001
Vd (cm/s)	−0.342	<0.001
Vm (cm/s)	−0.288	0.003
Long Pv S (cm/s)	−0.196	0.013
Long Pv D (cm/s)	−0.102	0.203
Long Ps S (%)	−0.134	0.092
Long Ps D (%)	−0.166	0.037
Long Psr S (1/s)	−0.191	0.016
Long Psr D (1/s)	−0.100	0.210
Long Pd S (mm)	−0.065	0.416
Long Pd D (mm)	−0.215	0.007
tLoD (mm)	−0.19	0.017
Ra Pv S (cm/s)	−0.127	0.112
Ra Pv D (cm/s)	0.012	0.884
Ra Pd S (mm)	0.023	0.77
Ra Pd D (mm)	−0.134	0.093

IMT, intima media thickness; VVI, velocity vector imaging; AC, arterial compliance; Ds, systolic diameter; Dd, diastolic diameter; Ep, pressure strain elastic modulus; DC, distensibility coefficient; Vs, systolic peak velocity; Vd, diastolic peak velocity; Vm, mean velocity; Long Pv S, systolic longitudinal peak velocity; Long Pv D, diastolic longitudinal peak velocity; Long Ps S, systolic longitudinal peak strain; Long Ps D, diastolic longitudinal peak strain; Long Psr S, systolic longitudinal peak strain rate; Long Psr D, diastolic longitudinal peak strain rate; Long Pd S, systolic longitudinal peak displacement; Long Pd D, diastolic longitudinal peak displacement; Ra Pv S, systolic radial peak velocity; Ra Pv D, diastolic radial peak velocity; Ra Pd S, systolic radial peak displacement; Ra Pd D, diastolic radial peak displacement; tLoD, total longitudinal displacement.