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Abstract #0754

Real-time phase contrast magnetic resonance imaging for assessment of cerebral haemodynamics during breathing.

Olivier Balédent1,2, Pan Liu1, Armelle Lokossou1, Fall Sidy1, Serge Metanbou3, and Malek Makki1,4

1EA 7516 Chimère, Jules Verne university, amiens, France, 2Image Processing, Jules Verne University Hospital, Amiens, France, 3Neuro Radiology, Jules Verne University Hospital, Amiens, France, 4MRI Research GIE-IFF CHU Amiens Picardie, Amiens, France

To investigate cerebral blood flows by EPI Phase Contrast (EPI-PC) and Normal Phase contrast sequences, in volunteers. Cerebral arterial and venous blood flows were calculated by homemade software. Arterial cerebral blood flows measured by EPI-PC were significantly higher than those measured by normal PC. Whereas venous cerebral blood flows were not different between the two technics. Post processing of continuous EPI-PC flow signal provides blood flows curves during inspiration and expiration. Blood flows during inspiration were respectively higher than during expiration. EPI-PC flow quantify arterial and venous intracranial blood flows in few seconds without any cardiac or respiratory gating.

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