Table 2 Comparison of baseline features according to final morphology.

From: Predicting outcomes of unruptured intracranial artery dissection with clear symptoms onset using clinical and radiological features

 

Aneurysmal dilatation (n = 16)

No aneurysmal dilatation (n = 57)

P

Occlusion (n = 5)

No occlusion (n = 68)

P

Male

8 (50)

33 (57.9)

0.574

3 (60)

38 (55.9)

1.000

Age in years, mean ± SD

49.5 ± 8.07

46.0 ± 10.5

0.224

49 ± 5.1

46.8 ± 10.1

0.613

Hypertension

6 (37.5)

24 (42.1)

0.741

3 (60)

27 (39.7)

0.396

Diabetes

1 (6.25)

1 (1.8)

0.393

0 (0)

2 (2.9)

1.000

Hyperlipidemia

2 (12.5)

11 (19.3)

0.720

0 (0)

13 (19.1)

0.578

Smoking

3 (18.9)

20 (35.1)

0.214

2 (40)

21 (30.9)

0.647

Old CVA

0 (0)

3 (5.3)

1.000

0 (0)

3 (4.4)

1.000

Family history

2 (12.5)

13 (22.8)

0.497

0 (0)

15 (22.1)

0.576

Initial symptom

  

< 0.001*

  

1.000

 Ischemic symptom

4 (25)

45 (78.9)

 

3 (60)

46 (67.7)

 

 Headache

12 (75)

12 (21.1)

 

2 (40)

22 (32.4)

 

Recurred or newly developed symptom

1 (6.3)

15 (26.3)

0.168

1 (20)

15 (22.1)

1.000

VW-MRI

 Dissecting flap

13 (81.3)

50 (87.7)

0.681

4 (80)

59 (86.8)

0.532

 Double lumen

9 (56.3)

20 (35.1)

0.126

0 (0)

29 (42.7)

0.150

 Intramural hematoma

10 (62.5)

52 (91.2)

0.011*

5 (100)

57 (83.8)

1.000

 Increased outer diameter

15 (93.8)

7 (12.3)

< 0.001*

0 (0)

22 (32.4)

0.314

 Onion-skin appearance

5 (31.3)

17 (29.8)

1.000

3 (60)

19 (27.9)

0.157

 Wall enhancement

13 (81.3)

31 (54.4)

0.052

2 (40)

42 (61.8)

0.380

 Preserved patency

15 (93.8)

38 (66.7)

0.054

1 (20)

52 (76.5)

0.018*

 Eccentricity indexa

0.49 (-0.07–0.86)

0.75 (0.49–0.86)

0.118

0.6 (0.5–0.72)

0.74 (0.43–0.86)

0.454

 Remodeling indexa

3.2 (2.44–4.22)

2.06 (1.6–3)

0.004*

2.53 (2.4–4.64)

2.33 (1.64–3.23)

0.303

 Normalized wall indexa

0.66 (0.53–0.77)

0.57 (0.5–0.69)

0.212

0.66 (0.56–0.69)

0.57 (0.51–0.7)

0.786

 rsIMHa

1.63 (1.35–2.35)

2 (1.48–3.53)

0.086

3.13 (2.21–3.89)

1.87 (1.43–3.21)

0.247

TOF-MRA

 Dissecting flap

12 (75)

35 (61.4)

0.316

3 (60)

44 (64.7)

1.000

 Double lumen

5 (31.3)

9 (15.8)

0.278

0 (0)

14 (20.6)

0.576

 Intramural hematoma

7 (43.8)

26 (45.6)

0.895

4 (80)

29 (42.7)

0.169

 Increased outer diameter

13 (81.3)

9 (15.8)

< 0.001*

0 (0)

22 (32.4)

0.314

 Preserved patency

14 (87.5)

35 (61.4)

0.050

1 (20)

48 (70.6)

0.037

 Remodeling indexa

2.87 (2.02–4.35)

1.97 (1.19–2.77)

0.005*

2.45 (2.06–2.65)

2.1 (1.28–3.33)

0.860

 rsIMHa

2.2 (1.27–2.64)

1.56 (1.13–2.53)

0.142

2.53 (1.86–2.85)

1.62 (1.16–2.59)

0.110

  1. Data are expressed as the number of cases with percentages in parentheses unless otherwise indicated. aData are expressed as median (interquartile range). VW-MR vessel wall magnetic resonance image; TOF-MRA time of flight-magnetic resonance angiography; SD standard deviation; CVA cerebrovascular accident; rsIMH relative signal intensity of intramural hematoma. * indicates statistical significance (P < 0.05).
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