Multiplanar reconstructed computed tomography images improves depiction and understanding of the anatomy of the frontal sinus and recess.

摘要: AIMS The use of multiplanar reconstructed computed tomography (CT) images frontal recess and sinuses was assessed with regard to depiction understanding anatomy effect on surgical approach. MATERIALS AND METHODS Three otorhinolaryngologists one radiologist read CT scans 43 patients referred for routine paranasal sinus scans. Spiral (helical) were obtained coronal parasagittal reconstructions imaged. hundred forty-two readings analyzed. in the plane then plane. (i) Bent Kuhn classification ethmoidal air cells, (ii) size ostium (assessed as unsure, normal, small, or large), (iii) regarding additional particular reference how agger nasi cell cells arranged a three-dimensional space, (iv) if scan subsequent picture created altered first two criteria RESULTS There no statistically significant difference between frontoethmoidal (t-test; p > 0.05). significantly better than identifying assessing (p < 0.001; chi-square test). Assuming an intraobserver change rate (repeat error) 10% observations, exact binomial test performed S-PLUS, which showed that there 0.001) proportion observers who changed their rating after looking at scan. also improvement observers' abilities identify classify reflected by number from being unsure sure Observers felt improved 58% 10-point Lickert scale. In 55% these plan mean 70.2% scale based information viewing CONCLUSIONS is greatly using both compared alone. This had important implications planning surgery recess.