Table 3:
Performance of existing aneurysmal parameters in the prediction of ruptured aneurysm in SAH patients with multiple IAs*
| Parameter | Positive Predictive Value | |
|---|---|---|
| Location | 52% | |
| Type | 31% | |
| Morphology | D | 82% |
| Hmax | 85% | |
| H | 81% | |
| SRD | 83% | |
| SRHmax | 87% | |
| ARHmax | 80% | |
| ARH | 74% | |
| Aneurysm Number | 63% | |
| Undulation Index | 80% | |
| Nonsphericity Index | 49% | |
| Ellipticity Index | 40% | |
| Surface area | 80% | |
| Volume | 80% | |
| Hemodynamics | WSS | 67% |
| Max WSS | 55% | |
| Min WSS | 75% | |
| NWSS | 71% | |
| Maxim NWSS | 51% | |
| Min NWSS | 74% | |
| OSI | 68% | |
| RRT | 76% | |
| LSA | 75% | |
| Complex flow | 50% | |
| RRS | 80% | |
For WSS, Minimum WSS, NWSS, Maximum NWSS, and Minimum NWSS we hypothesized that among IAs belong to each patient, the IA with the lowest value is the ruptured IA. For the rest of the variables, we hypothesized that the IA with the highest value is the ruptured IA.