Volume of Lateral Geniculate Nucleus in Patients with Glaucoma in 7Tesla MRI

Overview

Journal J Clin Med

Specialty General Medicine

Date 2020 Jul 30

PMID 32722571

Citations 7

Authors

Ewa Kosior-Jarecka

Anna Pankowska

Piotr Polit

Andrzej Stepniewski

Mark Roger Symms

Paulina Koziol

Tomasz Zarnowski

Radoslaw Pietura

Affiliations

Soon will be listed here.

Abstract

Material And Methods: The studied group consisted of 20 open-angle glaucoma patients with bilaterally the same stage of glaucoma (11 with early glaucoma and nine with advanced glaucoma) and nine healthy volunteers from the Department of Diagnostics and Microsurgery of Glaucoma, Medical University of Lublin, Poland. Circumpapillary RNFL-thickness measurements were performed using OCT in all patients and visual fields were performed in the glaucoma group. A 7Tesla MRI was performed to assess the volume of both lateral geniculate bodies.

Results: The LGN volume varied significantly between groups from 122.1 ± 14.4 mm (right LGN) and 101.6 ± 13.3 mm (left LGN) in the control group to 80.2 ± 17.7 mm (right LGN) and 71.8 ± 14.2 mm (left LGN) in the advanced glaucoma group (right LGN = 0.003, left LGN = 0.018). However, volume values from early glaucoma: right LGN = 120.2 ± 26.5 mm and left LGN = 103.2 ± 28.0 mm differed significantly only from values from the advanced group (right LGN = 0.006, left LGN = 0.012), but not from controls (right LGN = 0.998, left LGN = 0.986). There were no significant correlations between visual field indices (MD (mean deviation) and VFI (visual field index)) and LGN volumes in both glaucoma groups. Significant correlations between mean RNFL (retinal nerve fiber layers) thickness and corresponding and contralateral LGN were observed for the control group (corresponding LGN: = 0.064; contralateral LGN: = 0.031) and early glaucoma (corresponding LGN: = 0.017; contralateral LGN: = 0.008), but not advanced glaucoma (corresponding LGN: = 0.496; contralateral LGN: = 0.258).

Conclusions: The LGN volume decreases in the course of glaucoma. These changes are correlated with RNFL thickness in early stages of glaucoma and are not correlated with visual field indices.

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