Pressure and flow in the dome of a surgically created canine aneurysm, injection at 5 mL/s over 4 seconds
| Characteristic | Before GDC Placement | After GDC Placement | ||||
|---|---|---|---|---|---|---|
| In Vivo | In Vitro | P Value | In Vivo | In Vitro | P Value | |
| Increase in pressure P | 7.4 ± 1.5 | 21.0 ± 0.8 | <.05 | 9.5 ± 2.6 | 15.2 ± 1.3* | <.05 |
| Change in temperature ΔT, °C | 9.66 ± 0.09 | 9.28 ± 0.16 | >.05 | 1.74 ± 0.25* | 4.45 ± 1.36* | <.05 |
| Pressure-flow shift ε, seconds | 0.30 ± 0.25 | 0.33 ± 0.09 | >.05 | 1.68 ± 0.87* | 0.66 ± 0.19* | <.05 |
| Dilution interval, seconds | 7.32 ± 0.54 | 8.21 ± 0.75 | >.05 | 21.15 ± 1.34* | 11.33 ± 2.21* | <.05 |
Note.—Injections were normal saline at room temperature. Data are the mean ± SD. P values were determined with a two-sided Student t test.
* P < .05 before GDC placement versus after GDC placement.