Vertebral arterial flow reversal in proximal subclavian artery occlusion

Case contributed by Dr Roberto Schubert

Presentation

Recurrent drop attacks. Dizzyness. Blood pressure difference between right and left arm.

Patient Data

Age: 65
Gender: Female

No (antegrade) flow signal in the left VA on 3D TOF images. CE-MRA shows that the left arm is supplied by a collateral circulation, that involves retrograde perfusion of the left vertebral artery.

Case Discussion

The left VA flow signal on the 3D multislab TOF images is absent due to ramped flip angles and superior sat pulse.

PlayAdd to Share

Case information

rID: 17849
Case created: 18th May 2012
Last edited: 3rd Nov 2015
System: Vascular
Inclusion in quiz mode: Included

Updating… Please wait.
Loadinganimation

Alert accept

Error Unable to process the form. Check for errors and try again.

Alert accept Thank you for updating your details.