Abstract
We have devised a surgical method to perform transcanal endoscopic mastoidectomy with AR support for patients with poor mastoid pneumatization. This procedure does not require a retroauricular incision, and we call it Image-Guided Transcanal Endoscopic Mastoidectomy （IGTEM）. We report 10 cases in which this procedure was performed. The indications for this procedure include intratemporal lesions in cases of poor mastoid air cells. With the assistance of medical devices such as endoscopes, powered devices, and AR navigation, it may be possible to complete mastoid antrum and mastoid air cell procedures less invasively and more safely, even in cases where conventional surgical procedures are challenging.
