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Gewählte Publikation:

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Publikationstyp: Zeitschriftenaufsatz
Dokumenttyp: Originalarbeit

Jahr: 2021

AutorInnen: Merkle, CW; Augustin, M; Harper, DJ; Gesperger, J; Lichtenegger, A; Eugui, P; Garhöfer, G; Glösmann, M; Baumann, B

Titel: High-resolution, depth-resolved vascular leakage measurements using contrast-enhanced, correlation-gated optical coherence tomography in mice.

Quelle: Biomedical Optics Express 2021; 12: 1774-1791



Autor/innen der Vetmeduni Vienna:

Glösmann Martin

Beteiligte Vetmed-Organisationseinheiten
VetCore


Zugehörige(s) Projekt(e): Multifunktionelle OCT zur präklinischen Bildgebung im Maus- und Rattenauge


Abstract:
Vascular leakage plays a key role in vision-threatening retinal diseases such as diabetic retinopathy and age-related macular degeneration. Fluorescence angiography is the current gold standard for identification of leaky vasculature in vivo, however it lacks depth resolution, providing only 2D images that complicate precise identification and localization of pathological vessels. Optical coherence tomography (OCT) has been widely adopted for clinical ophthalmology due to its high, micron-scale resolution and rapid volumetric scanning capabilities. Nevertheless, OCT cannot currently identify leaky blood vessels. To address this need, we have developed a new method called exogenous contrast-enhanced leakage OCT (ExCEL-OCT) which identifies the diffusion of tracer particles around leaky vasculature following injection of a contrast agent. We apply this method to a mouse model of retinal neovascularization and demonstrate high-resolution 3D vascular leakage measurements in vivo for the first time. © 2021 OSA - The Optical Society. All rights reserved.


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