Abstract #2741

The More the Merrier? Finding the Right Temporal Resolution for Blood Velocity Measurements: a Multimodal Study

Francesco Santini ¹ , Oliver Bieri ¹ , and Tilman Schubert ²

¹ Radiological Physics, University of Basel Hospital, Basel, Switzerland, ² Department of Radiology, University of Basel Hospital, Basel, Switzerland

We used Doppler Ultrasound and Phase Contrast MRI to quantitatively characterize the frequency content of the blood velocity waveform in different locations of the body. The peripheral vessels had higher frequency content with respect to the central vessels, and we determined that a temporal resolution of 30 to 40 ms is both necessary and sufficient to correctly characterize the signal.

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