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Abstract #0521

In vivo evaluation of ocular physiology and structural integrity of the optic nerve upon whole eye transplantation using gadolinium-enhanced MRI and diffusion tensor imaging

Yolandi van der Merwe 1,2 , Leon C. Ho 1,3 , Yang Li 4 , Maxine R. Miller 4,5 , Chiaki Komatsu 4 , Hongkun Wang 4 , Michael B. Steketee 5 , Seong-Gi Kim 1,6 , Joel S. Schuman 2,5 , Kia M. Washington 4,5 , Kevin C. Chan 1,5 , and the WET Consortium 5

1 Neuroimaging Laboratory, University of Pittsburgh, Pittsburgh, Pennsylvania, United States, 2 Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, United States, 3 Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam, Hong Kong, China, 4 Department of Plastic and Reconstructive Surgery, University of Pittsburgh, Pennsylvania, United States, 5 Department of Ophthalmology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States, 6 Center for Neuroscience Imaging Research, Institute for Basic Science, Sungkyunkwan University, Suwon, Korea

Whole eye transplantation (WET) provides individuals with irreversible vision loss the opportunity to receive an intact visual system. A viable ocular environment that stimulates adequate blood circulation and reconstructs axonal integrity is essential in the restoration of visual function. The purpose of this study is to demonstrate the viability of our WET model to assess aqueous humor dynamics and tissue permeability of the transplanted eye using gadolinium (Gd)-enhanced MRI. In addition, diffusion tensor imaging was employed to determine the structural integrity of the optic nerve following WET.

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