Inflow velocity ratio and inflow rate ratio in unruptured aneurysms with different inflow jet patterns visualized at the 75% threshold of the maximum velocity in the parent arterya
| Inflow Jet Pattern and Ratio | Median % (IQR) | Concentrated Inflow Jet | Diffuse Inflow Jet | Neck-Limited | Unvisualized |
|---|---|---|---|---|---|
| Concentrated inflow jet | |||||
| Inflow velocity | 94.1 (15.5) | .5222 (NS) | .0138 (S) | <.0001 (S) | |
| Inflow rate | 89.9 (52.3) | .1735 (NS) | .0059 (S) | <.0001 (S) | |
| Diffuse inflow jet | |||||
| Inflow velocity | 101 (31.8) | .5222 (NS) | .0053 (S) | <.0001 (S) | |
| Inflow rate | 59.3 (59.9) | .1735 (NS) | .0194 (S) | <.0001 (S) | |
| Neck-limited | |||||
| Inflow velocity | 69.4 (28.8) | .0138 (S) | .0053 (S) | .0516 (NS) | |
| Inflow rate | 29.8 (33.3) | .0059 (S) | .0194 (S) | .1021 (NS) | |
| Unvisualized | |||||
| Inflow velocity | 59.1 (7.62) | <.0001 (S) | <.0001 (S) | .0516 (NS) | |
| Inflow rate | 21.6 (16.0) | <.0001 (S) | <.0001 (S) | .1021 (NS) |
Note:—IQR indicates interquartile range; S, significant; NS, not significant by the comparison test adjusted for the P value; inflow velocity ratio, the ratio of the maximum inflow velocity to the maximum flow velocity in the parent artery; inflow rate ratio, the ratio of the maximum inflow rate to the maximum flow rate in the parent artery.
↵a Statistical analysis was performed between a variable shown in the left column and a variable in the headers.