Cortical visual impairment following bacterial meningitis: magnetic resonance imaging and visual evoked potentials findings in two cases

1992 ◽  
Vol 151 (10) ◽  
pp. 779-782 ◽  
Author(s):  
L. Thun-Hohenstein ◽  
B. Schmitt ◽  
H. Steinlin ◽  
E. Martin ◽  
E. Boltshauser
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Bacterial Meningitis ◽  
Evoked Potentials ◽  
Visual Impairment ◽  
Visual Evoked Potentials ◽  
Resonance Imaging ◽  
Cortical Visual Impairment ◽  
Visual Evoked

scholarly journals Cerebral Functional Magnetic Resonance Imaging and Multifocal Visual Evoked Potentials in a Patient with Unexplained Impairment of Visual Function: A Case Report

2018 ◽  
Vol 9 (2) ◽  
pp. 269-278
Author(s):  
Olav H. Haugen ◽  
Sten Andréasson ◽  
Lars Ersland ◽  
Alexander R. Craven ◽  
Kenneth Hugdahl
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Functional Magnetic Resonance Imaging ◽  
Evoked Potentials ◽  
Visual Evoked Potentials ◽  
Future Research ◽  
Functional Magnetic Resonance ◽  
Resonance Imaging ◽  
Multifocal Visual Evoked Potentials ◽  
Visual Evoked

We present a case of a young female with a slowly progressing visual impairment who was examined with multifocal visual evoked potentials and functional magnetic resonance imaging (fMRI) for underlying neuronal abnormality. The fMRI examination consisted of presenting black-and-white checkerboard stimuli, and her activation patterns were compared to the patterns from 4 normal-sighted subjects. The results showed clear differences in neuronal activation between the patient and the controls in the occipital and parietal lobes. Although we have shown neuronal correlates in a case of unexplained visual loss, it is still an open question as to whether this has an organic or functional cause, which should be the subject for future research.

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