Research Article

An Automated Workflow for Hemodynamic Computations in Cerebral Aneurysms

Table 2

Comparison between centerline velocity magnitudes obtained with LBM and Ansys CFX. The differences are expressed in percentages relative to the CFX velocity at each point on the centerline and are computed separately for each outlet branch of the vessel.

CaseBranchCycle averagePeak systole
MedianInterquartile rangeMedianInterquartile range

IC10-1.79(-2.30, -1.31)-1.58(-2.20, -1.03)
1-2.04(-2.56, -1.41)-1.80(-2.83, -1.13)
IC20-2.02(-3.23, -1.42)-2.58(-3.74, -1.38)
1-1.67(-2.33, -1.21)-1.90(-2.65, -0.92)
IC30-0.29(-0.40, 0.19)-0.03(-0.16, 2.72)
1-0.38(-1.83, -0.13)-0.14(-2.91, 0.06)
IC40-1.82(-2.25, -1.15)-1.26(-2.58, -0.70)
IC50-0.43(-0.87, -0.18)-0.52(-0.88, -0.08)
1-0.66(-1.05, -0.42)-0.68(-1.19, -0.39)
IC60-1.70(-2.45, -1.05)-2.17(-3.10, -0.80)
1-1.28(-1.91, -0.50)-2.35(-3.81, -1.06)
IC70-0.65(-0.95, -0.54)-0.60(-0.89, -0.30)
1-0.48(-0.65, -0.23)-0.27(-0.64, -0.05)
2-0.57(-0.75, -0.26)-0.43(-0.78, -0.16)
IC80-0.93(-1.45, -0.61)-0.68(-1.33, -0.33)
1-0.90(-1.41, -0.60)-0.64(-1.25, -0.30)
2-1.09(-1.61, -0.75)-0.79(-1.51, -0.41)
IC90-0.89(-1.60, -0.26)-0.71(-1.90, -0.17)
IC100-2.02(-2.43, -1.33)-1.79(-2.50, -1.20)
1-1.94(-2.39, -1.05)-1.71(-2.44, -1.12)
2-3.17(-4.32, -2.37)-2.73(-3.37, -1.90)
MCA10-1.46(-2.73, -0.86)-1.18(-2.18, -0.59)
1-0.66(-1.10, -0.47)-0.61(-1.24, -0.22)
2-2.31(-3.60, -1.35)-1.33(-1.78, -0.79)
MCA20-1.23(-1.62, -0.73)-0.98(-1.51, -0.61)
1-1.59(-2.12, -1.07)-1.74(-3.04, -1.03)
MCA30-2.06(-2.73, -0.86)-2.09(-2.90, -0.80)
1-4.07(-7.38, -2.57)-3.47(-6.41, -2.19)
MCA40-0.59(-1.98, 0.14)-1.21(-2.11, -0.28)
1-2.82(-4.12, -2.19)-3.02(-4.05, -1.96)
MCA50-2.56(-3.01, -2.27)-2.40(-3.09, -2.15)
1-2.50(-2.91, -1.56)-2.40(-2.76, -1.61)
2-1.03(-3.27, -0.80)-1.43(-2.69, -1.09)
MCA60-2.15(-3.23, -0.57)-2.30(-3.70, -1.03)
12.78(-2.13, 3.47)2.00(-2.07, 2.62)
MCA70-2.87(-3.92, -2.25)-2.92(-3.81, -1.95)
1-2.90(-4.02, -2.25)-2.90(-3.96, -2.19)
2-3.64(-4.14, -2.42)-3.49(-4.26, -2.18)
MCA80-3.87(-4.63, -3.02)-3.62(-4.37, -2.60)
1-2.50(-4.24, 0.00)-2.09(-4.15, -0.58)
2-2.32(-4.33, -0.03)-1.90(-4.22, -0.50)
3-3.69(-4.40, -2.16)-3.01(-4.25, -1.72)
MCA90-1.78(-3.14, -1.32)-1.55(-2.55, -1.12)
1-2.60(-3.29, -1.78)-2.39(-3.46, -1.14)
2-1.81(-3.24, -1.64)-1.83(-2.89, -1.55)
3-1.33(-3.63, -0.94)-1.17(-3.02, -0.65)
MCA100-2.07(-3.31, -0.86)-1.86(-3.00, -0.71)
1-2.72(-3.24, -1.95)-2.64(-3.24, -1.61)
2-2.25(-3.31, -1.22)-2.13(-3.13, -1.16)
Overall (mean of absolute values)1.851.73