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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