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Table 2 Comparisons of the inner diameters of the left and right carotid arteries

From: Inner diameters of the normal carotid arteries measured using three-dimensional digital subtraction catheter angiography: a retrospective analysis

Inner diameter measured

Range (95% confidence interval)

Mean ± standard deviation

P

Left (n = 1182)

Right (n = 1182)

Left (n = 1182)

Right (n = 1182)

Proximal carotid sinus (mm)

6.53–15.11 (10.55–11.09)

7.06–15.60 (11.06–11.60)

10.82 ± 2.19

11.33 ± 2.18

0.009

Carotid sinus bulge (mm)

7.01–14.97 (10.74–11.24)

7.39–15.35 (11.12–11.62)

10.99 ± 2.03

11.37 ± 2.03

0.038

Distal carotid sinus (mm)

5.50–10.12 (7.73–8.01)

5.83–10.37 (7.97–8.25)

7.81 ± 1.18

8.10 ± 1.16

0.020

Common carotid artery (mm)

8.24–13.46 (10.69–11.01)

8.85–14.15 (11.34–11.66)

10.85 ± 1.33

11.50 ± 1.35

 < 0.001