TABLE 2:

Changes in basilar artery diameter

Treatment groups	Baseline (mm)	Vasospasm (mm)	Treatment (mm)
ia nimodipine	0.70 ± 0.03	0.40 ± 0.06^*	0.62 ± 0.02^†^§
it nimodipine	0.83 ± 0.03	0.42 ± 0.06^*	0.51 ± 0.06^†
ia vehicle	0.67 ± 0.02	0.48 ± 0.01^*	0.48 ± 0.01
it vehicle	0.59 ± 0.01	0.47 ± 0.01^*	0.41 ± 0.05
ia papaverine	0.60 ± 0.02	0.43 ± 0.03^*	0.49 ± 0.03^†

All values were derived from n=5 experiments except for IT vehicle group where n=2 experiments were applied. Data were expressed as mean ± SEM.
* Statistically significant from baseline values (P < .05).
† Statistically significant from values obtained during vasospasm (P < .05).
§ Statistically significant from values obtained in either IT nimodipine or IA papaverine treatments.