Hertel exophthalmometer versus computed tomography scan in proptosis estimation in thyroid-associated orbitopathy

Na Ri Park, Jun Hyung Moon, Jeong Kyu LeeDepartment of Ophthalmology, College of Medicine, Chung-Ang University Hospital, Dongjak-gu, Seoul, KoreaObjective: To compare exophthalmometry measured by Hertel exophthalmometer versus computed tomography (CT) scan.Methods: For this study, 133 patients with...

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Autores principales:	Park NR, Moon JH, Lee JK
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2019
Materias:	Orbital Disease Exophthalmos Graves Ophthalmopathy Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/a80cde243a694cf786a85b07746b07cf
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spelling	oai:doaj.org-article:a80cde243a694cf786a85b07746b07cf2021-12-02T07:46:19ZHertel exophthalmometer versus computed tomography scan in proptosis estimation in thyroid-associated orbitopathy1177-5483https://doaj.org/article/a80cde243a694cf786a85b07746b07cf2019-08-01T00:00:00Zhttps://www.dovepress.com/hertel-exophthalmometer-versus-computed-tomography-scan-in-proptosis-e-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Na Ri Park, Jun Hyung Moon, Jeong Kyu LeeDepartment of Ophthalmology, College of Medicine, Chung-Ang University Hospital, Dongjak-gu, Seoul, KoreaObjective: To compare exophthalmometry measured by Hertel exophthalmometer versus computed tomography (CT) scan.Methods: For this study, 133 patients with thyroid-associated orbitopathy (TAO) were analyzed retrospectively. Two experienced clinical observers independently measured proptosis using a Hertel exophthalmometer. The CT approaches used to measure proptosis included two previous methods and one new method. Method 1 used both lateral orbital rims–corneal surface in the axial plane, method 2 used lateral to medial orbital rims–corneal surface in the axial plane, and method 3 used superior to inferior orbital rims–corneal surface in the sagittal plane (new method). Patients were separated into two groups based on 2-mm differences in proptosis between eyes. Correlation analysis was performed to find the association between Hertel and CT values.Results: The Pearson’s coefficient (r) was 0.727 for Hertel exophthalmometry and CT method 1, 0.712 for Hertel and CT method 2, and 0.623 for Hertel and CT method 3. For patients with eye proptosis differences larger than 2 mm between eyes, Pearson’s coefficient (r) was 0.495 for Hertel exophthalmometry and CT method 1, 0.634 for Hertel and CT method 2, and 0.635 for Hertel and CT method 3.Conclusion: The three CT methods mentioned above had statistically significant relationships with Hertel exophthalmometry. Methods 2 and 3, which measured both eyes through different cut sections, had a significant relationship with Hertel values with eye proptosis differences larger than 2 mm. Thus, the new additive method may be effective for measuring proptosis in patients with differences greater than 2 mm between eyes.Keywords: orbital disease, exophthalmos, thyroid-associated orbitopathyPark NRMoon JHLee JKDove Medical PressarticleOrbital DiseaseExophthalmosGraves OphthalmopathyOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 13, Pp 1461-1467 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Orbital Disease Exophthalmos Graves Ophthalmopathy Ophthalmology RE1-994
spellingShingle	Orbital Disease Exophthalmos Graves Ophthalmopathy Ophthalmology RE1-994 Park NR Moon JH Lee JK Hertel exophthalmometer versus computed tomography scan in proptosis estimation in thyroid-associated orbitopathy
description	Na Ri Park, Jun Hyung Moon, Jeong Kyu LeeDepartment of Ophthalmology, College of Medicine, Chung-Ang University Hospital, Dongjak-gu, Seoul, KoreaObjective: To compare exophthalmometry measured by Hertel exophthalmometer versus computed tomography (CT) scan.Methods: For this study, 133 patients with thyroid-associated orbitopathy (TAO) were analyzed retrospectively. Two experienced clinical observers independently measured proptosis using a Hertel exophthalmometer. The CT approaches used to measure proptosis included two previous methods and one new method. Method 1 used both lateral orbital rims–corneal surface in the axial plane, method 2 used lateral to medial orbital rims–corneal surface in the axial plane, and method 3 used superior to inferior orbital rims–corneal surface in the sagittal plane (new method). Patients were separated into two groups based on 2-mm differences in proptosis between eyes. Correlation analysis was performed to find the association between Hertel and CT values.Results: The Pearson’s coefficient (r) was 0.727 for Hertel exophthalmometry and CT method 1, 0.712 for Hertel and CT method 2, and 0.623 for Hertel and CT method 3. For patients with eye proptosis differences larger than 2 mm between eyes, Pearson’s coefficient (r) was 0.495 for Hertel exophthalmometry and CT method 1, 0.634 for Hertel and CT method 2, and 0.635 for Hertel and CT method 3.Conclusion: The three CT methods mentioned above had statistically significant relationships with Hertel exophthalmometry. Methods 2 and 3, which measured both eyes through different cut sections, had a significant relationship with Hertel values with eye proptosis differences larger than 2 mm. Thus, the new additive method may be effective for measuring proptosis in patients with differences greater than 2 mm between eyes.Keywords: orbital disease, exophthalmos, thyroid-associated orbitopathy
format	article
author	Park NR Moon JH Lee JK
author_facet	Park NR Moon JH Lee JK
author_sort	Park NR
title	Hertel exophthalmometer versus computed tomography scan in proptosis estimation in thyroid-associated orbitopathy
title_short	Hertel exophthalmometer versus computed tomography scan in proptosis estimation in thyroid-associated orbitopathy
title_full	Hertel exophthalmometer versus computed tomography scan in proptosis estimation in thyroid-associated orbitopathy
title_fullStr	Hertel exophthalmometer versus computed tomography scan in proptosis estimation in thyroid-associated orbitopathy
title_full_unstemmed	Hertel exophthalmometer versus computed tomography scan in proptosis estimation in thyroid-associated orbitopathy
title_sort	hertel exophthalmometer versus computed tomography scan in proptosis estimation in thyroid-associated orbitopathy
publisher	Dove Medical Press
publishDate	2019
url	https://doaj.org/article/a80cde243a694cf786a85b07746b07cf
work_keys_str_mv	AT parknr hertelexophthalmometerversuscomputedtomographyscaninproptosisestimationinthyroidassociatedorbitopathy AT moonjh hertelexophthalmometerversuscomputedtomographyscaninproptosisestimationinthyroidassociatedorbitopathy AT leejk hertelexophthalmometerversuscomputedtomographyscaninproptosisestimationinthyroidassociatedorbitopathy
_version_	1718399179421646848

Hertel exophthalmometer versus computed tomography scan in proptosis estimation in thyroid-associated orbitopathy

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