AN ESSAY OF COMPUTED TOMOGROPHY (CT) TO STUDY THE MINIMUM SINUSAL RETENTION

Abstract

Introduction – The CT of paranasal sinuses associated with the nasal endoscopy to evaluate the retention and restitution of mucociliary drainage. Focus to the ethmoidal infundibulum and to the ostiomeatal complex that support FES (Functional Endoscopic Surgery)^1,2. Objective – Study of anatomy topography of the infundibulum complex; referencing of the limited secretion retention. Material & Method – There are 110 cases with patency loss of the region of the medium conchae and surrounding sinuses. High resolution CT with three orthogonal scans in simultaneous display. Results – The results are organized by incidence, retention level and stenosis of infundibulum and ostiomeatal complex drainage. The more frequent variants are those between unciform and the bulla in the minimum retention (60%). The contact between the uncinate process and the orbit is more frequent than the contact between the uncinate process and the medium bulla – 17% vs 7%. The frontal retention is 12% in the stenosis of the hiatus with ethmoidal retention. Discussion – Exercise the significance of CT for the pathophysiology of nasal retention with importance for the endoscopy. Conclusion – Consider the duality of CT and endoscopy as a clinical matrix to share. Keywords – Nasosinusal CT. CT and nasal endoscopy. Minimum retention CT.