No abstract

No abstract

found in 8 patients. Arterial blood pressure was measured before, immediately after, and 5 minutes after balloon occlusion prior to intra-arterial injection, as well as before and after balloon deflation after intra-arterial injection. Images were assessed qualitatively by 2 radiologists as well as quantitatively by calculating the contrast-to-noise ratio.Results: We found no significant difference in pressure between immediately after and 5 minutes after balloon occlusion. Mean stump pressure before balloon deflation after intra-arterial injection was 70.4 mmHg. We observed a significant increase in qualitative scores after balloon occlusion (P <0.001), and the mean 3 score in the third-order branch was significantly higher than that in the first-order branch (P = 0.048).Conclusion: Our results indicate that intra-arterial injection can be started at any time after balloon occlusion and that 70 mmHg may be considered as a possible indicator of the endpoint for arterial injection.

IAFC significantly reduced the cerebral circulation time after aneurysmal SAH and might be effective for the prevention of symptomatic vasospasm.

We found that the frequency of aplastic unilateral VA was 4.6% in asymptomatic people using a combination of MRA and BPAS-MRI for assessment of an intracranial VA.