Lamina-specific anatomic magnetic resonance imaging of the human retina

Yi Zhang, Oscar San Emeterio Nateras, Qi Peng, Roman V. Kuranov, Joseph M. Harrison, Thomas E. Milner, Timothy Q. Duong

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Purpose. Magnetic resonance imaging (MRI) of the human retina faces two major challenges: eye movement and hardware limitation that could preclude human retinal MRI with adequate spatiotemporal resolution. This study investigated eye-fixation stability and high-resolution anatomic MRI of the human retina on a 3-Tesla (T) MRI scanner. Comparison was made with optical coherence tomography (OCT) on the same subjects. Methods. Eye-fixation stability of protocols used in MRI was evaluated on four normal volunteers using an eye tracker. High-resolution MRI (100 × 200 × 2000 μm) protocol was developed on a 3-T scanner. Subjects were instructed to maintain stable eye fixation on a target with cued blinks every 8 seconds during MRI. OCT imaging of the retina was performed. Retinal layer thicknesses measured with MRI and OCT were analyzed for matching regions of the same eyes close to the optic nerve head. Results. The temporal SDs of the horizontal and vertical displacements were 78 ± 51 and 130 ± 51 μm (±SD, n = 4), respectively. MRI detected three layers within the human retina, consistent with MRI findings in rodent, feline, and baboon retinas. The hyperintense layer 1 closest to the vitreous likely consisted of nerve fiber, ganglion cell, and inner nuclear layer; the hypointense layer 2, the outer nuclear layer and the inner and outer segments; and the hyperintense layer 3, the choroid. The MRI retina/choroid thickness was 711 ± 37 μm, 19% (P < 0.05) thicker than OCT thickness (579 ± 34 μm). Conclusions. This study reports high-resolution MRI of lamina-specific structures in the human retina. These initial results are encouraging. Further improvement in spatiotemporal resolution is warranted.

Original languageEnglish (US)
Pages (from-to)7232-7237
Number of pages6
JournalInvestigative Ophthalmology and Visual Science
Volume52
Issue number10
DOIs
StatePublished - Sep 2011
Externally publishedYes

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Retina
Magnetic Resonance Imaging
Optical Coherence Tomography
Choroid
Papio
Felidae
Optic Disk
Eye Movements
Nerve Fibers
Ganglia
Rodentia
Healthy Volunteers

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems
  • Cellular and Molecular Neuroscience
  • Medicine(all)

Cite this

Zhang, Y., Nateras, O. S. E., Peng, Q., Kuranov, R. V., Harrison, J. M., Milner, T. E., & Duong, T. Q. (2011). Lamina-specific anatomic magnetic resonance imaging of the human retina. Investigative Ophthalmology and Visual Science, 52(10), 7232-7237. https://doi.org/10.1167/iovs.11-7623

Lamina-specific anatomic magnetic resonance imaging of the human retina. / Zhang, Yi; Nateras, Oscar San Emeterio; Peng, Qi; Kuranov, Roman V.; Harrison, Joseph M.; Milner, Thomas E.; Duong, Timothy Q.

In: Investigative Ophthalmology and Visual Science, Vol. 52, No. 10, 09.2011, p. 7232-7237.

Research output: Contribution to journalArticle

Zhang, Y, Nateras, OSE, Peng, Q, Kuranov, RV, Harrison, JM, Milner, TE & Duong, TQ 2011, 'Lamina-specific anatomic magnetic resonance imaging of the human retina', Investigative Ophthalmology and Visual Science, vol. 52, no. 10, pp. 7232-7237. https://doi.org/10.1167/iovs.11-7623
Zhang, Yi ; Nateras, Oscar San Emeterio ; Peng, Qi ; Kuranov, Roman V. ; Harrison, Joseph M. ; Milner, Thomas E. ; Duong, Timothy Q. / Lamina-specific anatomic magnetic resonance imaging of the human retina. In: Investigative Ophthalmology and Visual Science. 2011 ; Vol. 52, No. 10. pp. 7232-7237.
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