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Table 6 Comparisons of the inner diameters of the carotid arteries between groups stratified according to Essen Stroke Risk Score

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
ESRS < 3 (n = 678) ESRS ≥ 3 (n = 504) ESRS < 3 (n = 678) ESRS ≥ 3 (n = 504)
Left proximal carotid sinus (mm) 6.79–15.41 (10.80–11.48) 5.93–14.13 (9.84–10.69) 11.14 ± 2.22 10.26 ± 2.02 0.002
Right proximal carotid sinus (mm) 7.17–15.83 (11.16–11.84) 6.68–15.00 (10.61–11.49) 11.49 ± 2.21 11.01 ± 2.08 0.001
Left carotid sinus bulge (mm) 7.27–14.95 (10.80–11.48) 5.74–14.92 (10.16–11.08) 11.08 ± 2.01 10.33 ± 2.34 0.007
Right carotid sinus bulge (mm) 7.29–15.33 (11.25–11.86) 6.57–15.07 (10.61–11.52) 11.55 ± 1.95 11.06 ± 2.12  < 0.001
Left distal carotid sinus (mm) 5.38–10.82 (7.85–8.20) 5.30–9.920 (7.37–7.85) 8.02 ± 1.16 7.61 ± 1.18 0.006
Right distal carotid sinus (mm) 5.94–10.92 (8.11–8.44) 5.00–11.58 (7.58–8.05) 8.27 ± 1.13 7.82 ± 1.14 0.002
Left common carotid artery (mm) 8.13–13.47 (10.53–10.94) 8.45–11.02 (10.80–11.30) 10.73 ± 1.36 11.05 ± 1.28 0.059
Right common carotid artery (mm) 8.86–14.08 (11.27–11.67) 8.56–14.32 (11.30–11.85) 11.47 ± 1.33 11.55 ± 1.38 0.083
  1. ESRS Essen Stroke Risk Score