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Nasolacrimal system aeration on computed tomographic imaging: effects of patient positioning and scan orientation.

Czyz CN, Bacon TS, Stacey AW, Cahill EN, Costin BR, Karanfilov BI, Cahill KV - Clin Ophthalmol (2015)

Bottom Line: 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.Patient position should be accounted for in diagnostic conclusions and treatment decisions based on CT.

View Article: PubMed Central - PubMed

Affiliation: Section Oculofacial Plastic and Reconstructive Surgery, Ohio University/OhioHealth, Columbus, OH, USA.

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.

No MeSH data available.


Coronal image illustrating an opacified (small arrow) and a fully aerated (large arrow) lacrimal sac.
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f3-opth-9-469: Coronal image illustrating an opacified (small arrow) and a fully aerated (large arrow) lacrimal sac.


Nasolacrimal system aeration on computed tomographic imaging: effects of patient positioning and scan orientation.

Czyz CN, Bacon TS, Stacey AW, Cahill EN, Costin BR, Karanfilov BI, Cahill KV - Clin Ophthalmol (2015)

Coronal image illustrating an opacified (small arrow) and a fully aerated (large arrow) lacrimal sac.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4362979&req=5

f3-opth-9-469: Coronal image illustrating an opacified (small arrow) and a fully aerated (large arrow) lacrimal sac.
Bottom Line: 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.Patient position should be accounted for in diagnostic conclusions and treatment decisions based on CT.

View Article: PubMed Central - PubMed

Affiliation: Section Oculofacial Plastic and Reconstructive Surgery, Ohio University/OhioHealth, Columbus, OH, USA.

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.

No MeSH data available.