Speaker
Dr
Giuseppe Palma
(CNR - IBB Napoli)
Description
Magnetic Resonance Imaging provides some of the most powerful techniques to study in vivo the vascular tree and a large spectrum of phenomena related to blood flow. In this context, Phase Contrast pulse sequences play a central role in the flow quantification of arterial and venous vessels.
After a brief introduction to NMR signal formation and its spatial reconstruction, the theory of flow-encoding through the application of bipolar gradient will be presented, and the link between phase-difference reconstruction and velocity-mapping will be described, in order to show the feasibility of blood flow quantification. Finally, an outlook on some advanced issues will provide an insight on time-resolved 2D/3D flow reconstructions and on the accuracy of the results.