Aortic and Internal Carotid Atherosclerosis in Patients with Carotid Stenosis: Semiautomatic Volumetric Analysis of Low-Attenuation Plaque on Curved Planar Reformations Using MDCT Angiographic Data
Table 2
Comparisons of plaque volumes in aortic arch and ICA between 28 group 1 patients and 37 group 2 patients.
Volumes (mm3) of uncalcified plaque
Group 1 patients
Group 2 patients
p-value
< 70 years old
≥ 70 years old
(n =28)
(n=37)
Mean mm3 ± sd
Mean mm3 ± sd
Aortic arch
LPV
297.0 ± 266.4
447.6 ± 586.9
0.371
TUPV
2734.2 ± 1351.9
3996.7 ± 2450.0
0.002
LPV/TUPV ratio (%)
9.7 ± 5.9
9.1 ± 5.6
0.921
ICA
LPV
24.9 ± 22.5
44.1 ± 28.4
0.003
TUPV
183.8 ± 126.9
361.5 ± 118.3
< 0.001
LPV/TUPV ratio (%)
12.2 ± 7.3
11.4 ± 5.9
0.984
LPV: low-attenuation plaque volume, TUPV: total uncalcified plaque volume, sd: standard deviation.