Residual neurovascular function and retinotopy in a case of hemianopia.
BACKGROUND
For occipital cortex strokes resulting in vision disorders, questions about the viability of residual visual cortex remain.


METHODS
In a patient with a one-year-old, left, complete, homonymous hemianopia due to a right, posterior cerebral artery, ischaemic infarct, we assessed the visual cortex with fMRI retinotopic mapping prior to starting vision restoration therapy.


RESULTS
The patient was found to have residual neurovascular function and retinotopic representation in the surviving visual cortex around the infarcted area.


CONCLUSIONS
The ability to respond to stimuli in part of the blind field, though not consciously perceived, suggests the potential for recovery.
Ho
Yi-Ching
YC
Department of Neuroradiology, National Neuroscience Institute, Singapore.
Cheze
Amandine
A
Sitoh
Yih-Yian
YY
Petersen
Esben Thade
ET
Goh
Kong-Yong
KY
Gjedde
Albert
A
Golay
Xavier
X
D006423:Hemianopsia / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009431:Neural Conduction / Q000502:physiology*; D020521:Stroke / Q000150:complications* / Q000503:physiopathology; D014793:Visual Cortex / Q000473:pathology*