Association of Ultrasonographic Parameters with Subclinical White-Matter Hyperintensities in Hypertensive Patients

Table 3

Ultrasound assessment of extra- and intracranial macrocirculation.

Variable	Right	Left
Extracranial circulation
CCA-Dsys, cm (mean, SD)	0.68 (0.09)	0.65 (0.10)
CCA-Ddia, cm (mean, SD)	0.65 (0.09)	0.62 (0.09)
CCA-Dmean, cm (mean, SD)	0.66 (0.09)	0.63 (0.10)
CCA-PSV, cm/sec (mean, SD)	38.9 (9.6)	40.7 (8.7)
CCA-EDV, cm/sec (mean, SD)	7.3 (3.8)	9.0 (3.9)
CCA-MFV, cm/sec (mean, SD)	17.8 (5.1)	19.6 (5.2)
ICA-PSV, cm/sec (mean, SD)	53.7 (18.0)	55.2 (12.5)
ICA-EDV, cm/sec (mean, SD)	16.0 (8.6)	15.0 (6.6)
ICA-MFV, cm/sec (mean, SD)	28.6 (9.9)	28.3 (7.8)
CCA-IMTmean, mm (mean, SD)	0.8 (0.2)	0.9 (0.2)
Intracranial circulation
MCA-MFV, cm/sec (mean, SD)	35.4 (10.5)	35.6 (12.0)
MCA PI (mean, SD)	1.15 (0.25)	1.13 (0.24)

CCA-Dsys: (CCA diameter, peak-systolic), CCA-Ddia: (CCA diameter, end-diastolic), CCA-Dmean: (CCA diameter mean), CCA-PSV: (CCA peak-systolic flow velocity, CCA-EDV: (CCA end-diastolic flow velocity, CCA-MFV: (CCA mean-flow velocity), ICA-PSV: (ICA peak-systolic flow velocity), ICA-EDV: (ICA end-diastolic flow velocity), ICA-MFV: (ICA mean-flow velocity), MCA-MFV: (MCA mean-flow velocity), MCA PI: (MCA pulsatility index).