Literature DB >> 15627821

Decreased lateral geniculate nucleus activation in retrogeniculate hemianopia demonstrated by functional magnetic resonance imaging at 4 Tesla.

Atsushi Miki1, Grant T Liu, Edward J Modestino, Gabrielle R Bonhomme, Chia-Shang J Liu, John C Haselgrove.   

Abstract

Functional magnetic resonance imaging (fMRI) can detect lateral geniculate nucleus (LGN) activation. We studied LGN function in 5 patients with retrogeniculate homonymous hemianopia using fMRI at 4.0 Tesla during binocular visual stimulation. Decreased activation of visual cortex and LGN on the side of the lesion was observed in all 5 patients. These findings suggest that retrogeniculate lesions are associated with decreased activation of the LGN, due to retrograde degeneration or a functional decrease caused by decreased feedback from ipsilateral visual cortex. Copyright (c) 2005 S. Karger AG, Basel.

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Year:  2005        PMID： 15627821     DOI： 10.1159/000081776

Source DB:  PubMed          Journal:  Ophthalmologica        ISSN： 0030-3755            Impact factor:   3.250


  6 in total

1.  Noninvasive measurement of the cerebral blood flow response in human lateral geniculate nucleus with arterial spin labeling fMRI.

Authors:  Kun Lu; Joanna E Perthen; Robert O Duncan; Linda M Zangwill; Thomas T Liu
Journal:  Hum Brain Mapp       Date:  2008-10       Impact factor: 5.038

2.  Reduced retinal ganglion cell complex thickness in patients with posterior cerebral artery infarction detected using spectral-domain optical coherence tomography.

Authors:  Tsutomu Yamashita; Atsushi Miki; Yasuyuki Iguchi; Kazumi Kimura; Fumiatsu Maeda; Junichi Kiryu
Journal:  Jpn J Ophthalmol       Date:  2012-06-09       Impact factor: 2.447

3.  Retinal Ganglion Cell Atrophy in Homonymous Hemianopia due to Acquired Occipital Lesions Observed Using Cirrus High-Definition-OCT.

Authors:  Tsutomu Yamashita; Atsushi Miki; Katsutoshi Goto; Syunsuke Araki; Go Takizawa; Yoshiaki Ieki; Junichi Kiryu; Akio Tabuchi; Yasuyuki Iguchi; Kazumi Kimura; Yoshiki Yagita
Journal:  J Ophthalmol       Date:  2016-05-04       Impact factor: 1.909

4.  Survival of retinal ganglion cells after damage to the occipital lobe in humans is activity dependent.

Authors:  Colleen L Schneider; Emily K Prentiss; Ania Busza; Kelly Matmati; Nabil Matmati; Zoë R Williams; Bogachan Sahin; Bradford Z Mahon
Journal:  Proc Biol Sci       Date:  2019-02-27       Impact factor: 5.349

5.  Preserved extrastriate visual network in a monkey with substantial, naturally occurring damage to primary visual cortex.

Authors:  Holly Bridge; Andrew H Bell; Matthew Ainsworth; Jerome Sallet; Elsie Premereur; Bashir Ahmed; Anna S Mitchell; Urs Schüffelgen; Mark Buckley; Benjamin C Tendler; Karla L Miller; Rogier B Mars; Andrew J Parker; Kristine Krug
Journal:  Elife       Date:  2019-05-23       Impact factor: 8.140

6.  Sectoral analysis of the retinal nerve fiber layer thinning and its association with visual field loss in homonymous hemianopia caused by post-geniculate lesions using spectral-domain optical coherence tomography.

Authors:  Katsutoshi Goto; Atsushi Miki; Tsutomu Yamashita; Syunsuke Araki; Go Takizawa; Masaki Nakagawa; Yoshiaki Ieki; Junichi Kiryu
Journal:  Graefes Arch Clin Exp Ophthalmol       Date:  2015-10-07       Impact factor: 3.117
  6 in total

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