Patient-Specific Simulation of Coronary Artery Pressure Measurements: An In Vivo Three-Dimensional Validation Study in Humans

Table 5

Results of the sensitivity analysis in the deformable wall assumption (lumen face size was 0.09–0.12 mm).

Element size	Wall mesh size (elements)	Outlet pressure (mm Hg)	Difference in pressure (%)	Cross-sectional WSS (Pa)	Difference in WSS (%)
0.13 mm	292 K	105.494	0.048	6.38	21.62
0.10 mm	540 K	105.487	0.042	7.19	11.67
0.09 mm	582 K	105.458	0.014	7.85	3.56
0.07 mm	1.232 M	105.443	—	8.14	—

WSS: wall shear stress.
The selected mesh size for the final simulations is indicated in bold font (<5% difference in WSS).