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Retrobulbar vasculature using 7-T magnetic resonance imaging with dedicated eye surface coil

  • Oculoplastics and Orbit
  • Published:
Graefe's Archive for Clinical and Experimental Ophthalmology Aims and scope Submit manuscript

Abstract

Purpose

To determine the resolution and utility of using a dedicated, single-loop eye coil at 7 T to image the posterior ocular structures and vascular anatomy.

Methods

Imaging was performed on eight subjects (age range 26–54 years, four female, four male) with 7 T using a transmit head coil for excitation and a dedicated 5-cm eye surface receive coil. Acquisition parameters at 7 T for 3D spoiled gradient echo (3D-SPGR) sequences were optimized.

Results

It was possible to delineate the retina, sclera, and choroid, and fine details within the anterior and posterior segments of the eye. Retro-orbital and posterior ocular anatomy remained well visualized despite motion and susceptibility artifacts of anterior ocular structures. The ophthalmic arteries and their first-order branches were consistently visualized and improved with registration and summation of repeat scans. Furthermore, the central retinal vessels could be visualized. Intravenous gadolinium contrast reagent did not noticeably improve image quality.

Conclusions

High-resolution 7-T MRI with a dedicated eye coil can provide unique high-resolution noninvasive images of retro-orbital and posterior ocular structural and vascular anatomy and is able to resolve structures as small as the central retina vein.

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Acknowledgments

We thank Kathryn Richdale, OD, for her role and guidance in the development of MRI surface eye coil for patient use.

Author information

Authors and Affiliations

  1. Department of Ophthalmology, College of Medicine, The Ohio State University, Columbus, OH, USA

    John B. Christoforidis & Vincent Y. Ho

  2. Department of Radiology, College of Medicine, The Ohio State University, Columbus, OH, USA

    Peter A. Wassenaar, Michael V. Knopp & Petra M. Schmalbrock

  3. Department of Radiology, University of Chicago Medical Center, Columbus, OH, USA

    Greg A. Christoforidis

  4. Havener Eye Institute-Retina Division, The Ohio State University, 915 Olentangy River Rd, Columbus, OH, 43210, USA

    John B. Christoforidis

Authors
  1. John B. Christoforidis
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  2. Peter A. Wassenaar
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  3. Greg A. Christoforidis
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  4. Vincent Y. Ho
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  5. Michael V. Knopp
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  6. Petra M. Schmalbrock
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Corresponding author

Correspondence to John B. Christoforidis.

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None of the authors have any conflicts of interest that pertain to the information presented in this manuscript.

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Christoforidis, J.B., Wassenaar, P.A., Christoforidis, G.A. et al. Retrobulbar vasculature using 7-T magnetic resonance imaging with dedicated eye surface coil. Graefes Arch Clin Exp Ophthalmol 251, 271–277 (2013). https://doi.org/10.1007/s00417-012-2154-x

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  • DOI: https://doi.org/10.1007/s00417-012-2154-x

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