Zur Lage des Sehorgans in der Augenhöhle im Ganzkörper-MRT unter Berücksichtigung der Bulbusachsenlänge in einer populationsbasierten Kohortenstudie

Dissertation, Universitätsmedizin der Universität Greifswald, 2020

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Bibliographische Detailangaben
1. Verfasser: Schmidt, Patrick (VerfasserIn)
Körperschaft: Universität Greifswald (Grad-verleihende Institution)
Weitere Verfasser: Tost, Frank (AkademischeR BetreuerIn), Pfeiffer, Norbert (AkademischeR BetreuerIn)
Format: UnknownFormat
Sprache:ger
Veröffentlicht: Greifswald 2016
Schlagworte:
Hochschulschrift > Augapfel > Augenhöhle > Biometrie > Lagemessung > Exophthalmus > Multiresonanztherapie
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Zusammenfassung:Dissertation, Universitätsmedizin der Universität Greifswald, 2020
Augenheilkunde, Exophthalmometrie, MRT, Ophthalmologie
Exophthalmometry is a common examination in ophthalmology. For example it is relevant for diagnosis or follow-up of thyroid eye disease. However, exophthalmometry is affected by several factors such as ethnicity, sex and age. The purpose of this study was to determine the globe position by magnetic resonance imaging (MRI) and to investigate its correlates among the general Northeast German adult population. A total of 2152 subjects aged between 20 and 89 from the population-based Study of Health in Pomerania (SHIP-Trend) underwent a standardised whole-body MRI. Axial length and globe position were determined in axial T1-weighted images of the orbit. The image had to include the corneal apex as well as the optic nerve head. Study participants were excluded from imaging analysis if there was no plane available that included both structures. Further exclusion criterion was a lateral deviation of the subject’s viewing direction. Images with inadequate quality due to motion artefacts or other technical reasons were excluded as well. Globe position was defined as the perpendicular distance between the interzygomatic line and the posterior surface of the cornea (exophthalmometric value). The distance between the posterior surface of the cornea and the posterior pole of the eyeball, at the boundary with orbital fat, was defined as axial length. We used posterior surface of the cornea for our measurements, because it seemed to be less vulnerable for motion artefacts than the anterior ...
Beschreibung:Literaturverzeichnis: Seite 122-134
Beschreibung:141 Seiten
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