Measurement of viscous flow velocity and its visualization using two magnetic resonances

The accuracies of measurement of the velocity field using clinical and research magnetic resonance scanners were compared. The flow velocity was measured for a fluid simulating blood in the carotid artery model connected to a programmable pump. Using phase-contrast magnetic resonance tomography, velocity distributions in the carotid artery model and were obtained and compared with the analytical solution for viscous liquid flow in a cylindrical tube (Poiseuille flow). It is established that the accuracy of the velocity measurement does not depend on the field induction and spatial resolution of the scanners.