颅内椎动脉与基底动脉血管钙化在CTA上的分布比较

目的 比较颅内椎动脉与基底动脉血管钙化在计算机断层扫描血管成像（computed tomographyangiography,CTA）上的发生率和分布特点。 

Comparison of Calcification Distribution in Intracranial Vertebral Artery and Basilar Artery on CTA

Objective To describe the incidence and distribution of vascular calcification in intracranial
vertebral artery (IVA) and basilar artery (BA) on computed tomography angiography (CTA).
Methods The data of hospitalized patients who received head and neck CTA examination in our
hospital from February 2014 to October 2017 were consecutively collected. We reviewed all CTA
to compare the differences of incidence of vascular calcification in IVA and BA, and the incidence
of proximal and distal segment calcification in IVA and BA.
Results A total of 93 patients were included in this study, with 64 males and 29 females. The
mean age was (62.8±12.9) years. The mean age of vascular calcification group was significantly
higher than that of no vascular calcification group [(68.8±10.4) vs (59.8±13.0) years, P =0.002]. IVA
calcification was found in 31 (33.3%) patients, and BA calcification was also found in 5 (5.4%)
patients among the 31 patients. Calcification only in BA was not found. After statistical analysis, it
was found that the calcification incidence in IVA was significantly higher than that in BA (P =0.003).
The calcification incidence at proximal segment of bilateral IVA was significantly higher than at
distal segment of that (P =0.000), while the calcification between left and right IVA had no statistic
difference.
Conclusions The incidence of vascular calcification was significantly higher in IVA than that in
BA. The calcification of IVA and BA were more common in proximal segments.