Table 4.

Correlation of ultrasound parameters with white-matter hyperintensities on brain MRI.

Variable	Spearman's r	P
Extracranial circulation
CCA-Dsys	+0.501	<0.001
CCA-Ddia	+0.506	<0.001
CCA-Dmea	+0.508	<0.001
CCA-PSV	−0.256	0.067
CCA-EDV	−0.205	0.144
CCA-MFV	−0.134	0.342
ICA-PSV	−0.135	0.341
ICA-EDV	−0.324	0.019
ICA-MFV	−0.363	0.008
CCA-IMT	+0.228	0.104
Intracranial circulation
MCA-MFV	−0.041	0.819
MCA-PI	+0.516	<0.001