Retrograde Vertebral Artery Blood Flow

Radiology ◽  
1964 ◽  
Vol 82 (2) ◽  
pp. 211-216 ◽  
Author(s):  
Luis Gonzalez ◽  
Ronald A. Weintraub ◽  
Jerome F. Wiot ◽  
Carson Lewis

1963 ◽  
Vol 14 (3) ◽  
pp. 310-316 ◽  
Author(s):  
T. Philp ◽  
Eric Samuel ◽  
J.G. Duncan


1978 ◽  
pp. 377-381 ◽  
Author(s):  
D. N. White ◽  
G. R. Curry ◽  
R. J. Stevenson


Author(s):  
Natan M. Bornstein ◽  
Adam Krajewski ◽  
John W. Norris

ABSTRACT:Subclavian “steal”, when blood siphons from one vertebral artery to the other, has been suggested as a cause of brain stem ischaemia and stroke. We investigated 33 patients using transcranial Doppler to determine the direction and velocity of basilar blood flow. All patients had severe subclavian stenosis with reversed vertebral blood flow in the ipsilateral artery previously demonstrated by extracranial Doppler. Basilar flow was normal in direction in all cases, but its velocity was significantly increased (p<0.0008) compared to age- and sex-matched controls. These findings, in conjunction with previous observations using extracranial Doppler techniques, suggest that subclavian steal is little more than a harmless haemodynamic phenomenon.





1989 ◽  
Vol 15 (5) ◽  
pp. 499-503 ◽  
Author(s):  
Rolf P. StÜrm ◽  
Werner Estlinbaum ◽  
Max Casty




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