Fig 1.
a) The surface reconstruction of the healthy right carotid artery based on which the phantom was built b) The sketch of the pulsatile water flow set-up c) The velocity profile measured at CCA (left) and at ICA (right) measurement planes.
Table 1.
The spatial and temporal resolution of the PC-MRI measurements.
Table 2.
The regression analysis for different spatiotemporal resolutions and the hemodynamic parameters.
Fig 2.
a) Flow waveforms at different spatial(sr) and temporal(tr) resolutions. Dashed lines show the PC-MRI measurements and the red line shows the ultrasound probe measurement. Spatial resolution varied between 0.2mm and 1 mm and the temporal resolution varied between 9.1 ms and 142.9 ms. b) Ultrasound probe vs. PC-MRI flow measurements.
Fig 3.
a) Mean flow [mL/s] vs. spatial resolution [mm] b) Mean flow [mL/s] vs. temporal resolution [ms] c) Peak flow [mL/s] vs. spatial resolution and d) Peak flow [mL/s] vs. temporal resolution at the CCA and ICA. Red lines show the mean and peak flow measured by ultrasound probe.
Fig 4.
a) WSS [Pa] vs. spatial resolution [mm] b) WSS [Pa] vs. temporal resolution [ms] c) OSI vs. spatial resolution and d) OSI vs. temporal resolution.
Fig 5.
The mean WSS [Pa] of each quarter by CFD and by PC-MRI measurements at different spatial and temporal resolutions in the CCA and ICA.
* shows the highest WSS quarter and + shows the lowest WSS quarter.
Fig 6.
The mean OSI of each quarter by CFD and by PC-MRI measurements at 4 different spatial and temporal resolutions in the CCA and ICA.
* shows the highest OSI quarter and + shows the lowest OSI quarter.