High resolution O2 computed meatocisternography in the differential diagnosis of internal auditory canal pathology.

Recent introduction of O2 computed tomography cisternography and imaging with high resolution program have greatly improved the detection and preoperative evaluation of acoustic neuromas and other possible pathologies of the internal auditory canal. Sixty patients have been evaluated following the diagnostic protocol given in the text. Based on our results and on the experience as reported in literature HRO2CTC proved to be the most reliable method for detection and exclusion of intracanalicular and small extracanalicular acoustic neuromas and other pathologies at the internal auditory canal level.