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Table 1 Comparison of catheter angiography and VWI for detecting dissecting signs and diagnosis

From: Practical value of three-dimensional high resolution magnetic resonance Vessel Wall imaging in identifying suspicious intracranial vertebrobasilar dissecting aneurysms

 

Catheter angiography

VWI

P

Dissecting signs

 Intimal flap, n (%)

7 (25.9%)

21 (77.8%)

0.001

 Double lumen, n (%)

7 (25.9%)

18 (66.7%)

0.003

 IMH, n (%)

14 (51.9%)

 

Diagnosis

 Definitive VBDA, n (%)

7 (25.9%)

25 (92.6%)

< 0.001

 Possible VBDA, n (%)

20 (74.1%)

0

 

 Segmental ectasia, n (%)

0

2

 
  1. VWI vessel wall images, IMH intramural haematoma, VBDA vertebrobasilar dissecting aneurysm