Document Type
Article
Publication Title
Clinical ophthalmology (Auckland, N.Z.)
Abstract
PURPOSE: To determine the impact of patient positioning and scan orientation on the appearance of air in the nasolacrimal drainage system on computed tomography (CT) imaging, and the repeatability of the observations.
METHODS: This was a retrospective analysis of CT images for 92 patients.
RESULTS: Air was found to be present more fully in the upright-position group as compared with the supine-position group. Comparing axial and coronal scan orientation, no difference in aeration was found, except for the nasolacrimal duct in the upright-position group.
CONCLUSION: Patient position should be accounted for in diagnostic conclusions and treatment decisions based on CT.
First Page
469
Last Page
473
DOI
10.2147/OPTH.S80752
Publication Date
3-11-2015
Recommended Citation
Czyz CN, Bacon TS, Stacey AW, Cahill EN, Costin BR, Karanfilov BI, Cahill KV. Nasolacrimal system aeration on computed tomographic imaging: effects of patient positioning and scan orientation. Clin Ophthalmol. 2015 Mar 11;9:469-73. doi: 10.2147/OPTH.S80752. PMID: 25792799; PMCID: PMC4362979.