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Abstract #0378

Arterial, venous and cerebrospinal fluid flow oscillations in real-time phase contrast MRI: type of breathing matters

Maria Marcella Lagana1, Noam Alperin2, Laura Pelizzari1, Ning Jin3, Domenico Zaca4, Marta Cazzoli1, Giuseppe Baselli5, and Francesca Baglio1
1CADiTeR, IRCCS Fondazione Don Carlo Gnocchi ONLUS, Milan, Italy, 2University of Miami, Miami, FL, United States, 3MR R&D Collaborations, Siemens Medical Solutions USA, Inc., Cleveland, OH, United States, 4Siemens Healthcare, Milan, Italy, 5Department of Electronics, Information, and Bioengineering, Politecnico di Milano, Milan, Italy

We used real-time phase contrast MRI for assessing the cardiac and respiratory influence on the neck arterial and venous flows, and on the cervical cerebrospinal fluid (CSF) flow. Changes due to the type of breathing were investigated acquiring six healthy volunteers for 60s during normal and deep breathing. The power spectra were computed from the flow rates. Two main peaks, corresponding to the breathing rate (BR) and the heart rate (HR), were found. Comparing deep breathing to normal breathing, we observed the following trends: decrement of average blood flow rates; reversal of average CSF flow rate; increment of BR power.

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