Application and reliability of the superselective balloon occlusion test in the treatment of complex cerebral artery aneurysms: A report of 12 cases.

Although the general balloon occlusion test (BOT) is commonly used, there is limited information on the evaluation standards and methodological protocols for the superselective BOT, which may be required in some special aneurysm cases. We performed the superselective BOT in 12 patients with specific complex aneurysms and report our experiences herein. We retrospectively analyzed the angiographic results and test outcomes of 12 patients (8 men and 4 women) who underwent the superselective BOT to evaluate their collateral flow before treatment.