A. Lovrencic-huzjan et al., Color Doppler Flow Imaging (CDFI) of the vertebral arteries - The normal appearance, normal values and the proposal for the standards, COLL ANTROP, 23(1), 1999, pp. 175-181
In order to assess mean. diameters and blood flow velocities (BFV), Color D
oppler now Imaging (CDFI) of vertebral arteries (VA) was performed. Five hu
ndred and ninety six persons without carotid disease or symptoms related to
vertebrobasilar system were analyzed by CDFI of VA. Mean right VA diameter
was 3.37+/-0.6 mm and left 3.55+/-0.61 mm. Women had thinner VA (p < 0.05)
. Left VA was wider (p < 0.05). Mean. right BFV was 48.31+/-14.09 cm/s and
left 48.93+/-13.94 cm/s. Females had higher BFV (p < 0.05). BFV didn't very
with age (p > 0.05). The VA hypoplasia was present in 2.34%, asymmetry in
15% (left VA dominant in 64%). Visualisation of V1 and V2 segment was possi
ble in 100% and of the origin in 81.7% on the right, and 80.7% on the left
side. CDFI is a reliable method for evaluation of VA. Left VA was wider. Wo
men had thinner VA. Hypoplasia was present in 2.34% and asymmetry in 15%.