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Titolo:
Occipital lobe dysfunction revealed by functional brain imaging in a patient with traumatic visual field loss
Autore:
Miki, A; Nakajima, T; Abe, H; Liu, GT;
Indirizzi:
Hosp Univ Penn, Div Neuroophthalmol, Dept Neurol, Philadelphia, PA 19104 USA Hosp Univ Penn Philadelphia PA USA 19104 urol, Philadelphia, PA 19104 USA Niigata Univ, Sch Med, Dept Ophthalmol, Niigata, Japan Niigata Univ Niigata Japan iv, Sch Med, Dept Ophthalmol, Niigata, Japan Natl Saigata Hosp, Dept Neurol, Niigata, Japan Natl Saigata Hosp NiigataJapan igata Hosp, Dept Neurol, Niigata, Japan
Titolo Testata:
NEURO-OPHTHALMOLOGY
fascicolo: 2, volume: 22, anno: 1999,
pagine: 127 - 132
SICI:
0165-8107(199909)22:2<127:OLDRBF>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPECT;
Keywords:
single-photon emission computed tomography; functional magnetic resonance imaging; visual cortex; homonymous hemianopia; traumatic brain injury;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Miki, A Hosp Univ Penn, Div Neuroophthalmol, Dept Neurol, 3400 Spruce St, Philadelphia, PA 19104 USA Hosp Univ Penn 3400 Spruce St Philadelphia PA USA 19104 19104 USA
Citazione:
A. Miki et al., "Occipital lobe dysfunction revealed by functional brain imaging in a patient with traumatic visual field loss", NEURO-OPHTH, 22(2), 1999, pp. 127-132

Abstract

We report a patient with visual field loss due to closed head trauma who was imaged with anatomic and functional brain imaging. The findings of ophthalmologic examination were normal except for a complete homonymous hemianopia on the right, an incongruous homonymous hemianopia on the left, and right oculomotor palsy. The results of anatomic brain imaging, computed tomography, and magnetic resonance imaging (MRI) were unremarkable. However, single-photon emission computed tomography (SPECT) scan revealed marked hypoperfusion of the left occipital lobe and functional MRI showed a corresponding strikingly reduced response to visual stimuli in the left occipital lobe. Therefore, this patient is thought to have had dysfunction of the left occipital lobe. Functional brain imaging techniques, such as SPECT and functional MRI, can be helpful in the localization of the responsible lesions even when conventional neuro-imagings are nondiagnostic.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 08/04/20 alle ore 11:32:52