Endoscopic anterior ethmoidal artery ligation: a cadaver study.

Objective: The objective of this study was to investigate the radiologic and endoscopic anatomy of the anterior ethmoidal canal (AEC) and feasibility of endoscopic ligation of the anterior ethmoidal artery (AEA).

Study Design: The authors conducted a prospective analysis of computed tomography (CT) of the paranasal sinuses and endoscopic cadaver dissection.

Methods: Twenty-two cadaver heads had CT scans of the paranasal sinuses.