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Abstract #2545

Simultaneous assessment of respiration and heart beat on CSF and blood oscillations in near real-time imaging

Joel Daouk 1 , Roger Bouzerar 1,2 , and Olivier Baledent 1,2

1 BioFlow Image, University of Picardie Jules Verne, Amiens, Picardie, France, 2 Medical Image Processing, CHU Amiens, Picardie, France

MR vascular images are obtained after the acquisition of several cardiac cycles followed by an average of these measures. In this case, we do not have the true cardiac information and respiratory influence is lost. The aim of the present study was to apply a near real time imaging to follow physiological changes in CSF, arterial and venous flows. Moreover, we expose the principle of an automatic Fourier-based method to extract respiratory and cardiac frequencies in fast MR images and to assess the contribution of the two physiological phenomena to the signal obtained during MR acquisitions in various fluids.

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