Figure 1
From: Vectorial wall shear stress calculations in vessel structures using 4D PC-MRI
a) Effect of increasing resolution on the calculated WSS in phantom data. WSS values converge to the theoretical value (calculated through Poiseuille flow). The standard deviation is caused by the discretization at different resolutions. b) Effect of segmentation errors on the calculated WSS in phantom data. The circles illustrate the used segmentation. Constriction of the segmentation leads to overestimation of the WSS, where expansion leads to underestimation of the WSS.