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Table 2 Carotid geometry and lesion patterns among patients with high-apical and low-body plaques

From: Atherosclerotic plaque locations may be related to different ischemic lesion patterns

 

High-apical type (n = 31)

Low-body type (n = 62)

P value

Carotid geometry

 ICA-ECA angle, °

28.4 ± 14.9

22.8 ± 10.0

0.067

 CCA-ICA angle, °

162.3 ± 9.8

167.7 ± 10.4

0.019

 CCA-ECA angle, °

168.8 ± 12.4

169.1 ± 12.1

0.869

 ICA-to-CCA diameter ratio

0.56 ± 0.13

0.55 ± 0.12

0.832

 ICA planarity

17.0 ± 8.9

18.1 ± 10.7

0.625

 ICA stenosis severity (NASCET)

69.2 ± 11.4

64.6 ± 13.6

0.105

 Kinking of ICA

2 (6.5)

3 (4.8)

0.999

 Ulceration of plaque

16 (51.6)

35 (56.5)

0.658

 Carotid web

0

0

N/A

Lesion pattern on DWI

 Small (< 15 mm) single cortical lesion

2 (6.5)

2 (3.2)

0.598

 Small (< 15 mm) single subcortical lesion

1 (3.2)

4 (6.5)

0.662

 Small (< 15 mm) multiple scattered lesions

10 (32.3)

34 (54.8)

0.040

 Large single cortico-subcortical lesion

5 (16.1)

9 (14.5)

0.999

 Large single subcortical lesion

1 (3.2)

6 (9.7)

0.418

 Large lesion with additional lesions

12 (38.7)

7 (11.3)

0.002

  1. Values are expressed as number (%) or mean ± standard deviation.
  2. Abbreviations: CCA common carotid artery, DWI diffusion-weighted imaging, ECA external carotid artery, ICA internal carotid artery, N/A not available, NASCET North American Symptomatic Carotid Endarterectomy Trial