J Korean Ophthalmol Soc.  2001 Jun;42(6):916-921.

A Case of Positron Emission Tomogram(PET) study in Head Injury with Visual Field Defect

• Kim SH
• Ohn YH
• Jung HY

Abstract

PURPOSE: We report a case of head injury patient that showed a typical glucose hypometabolism in Positron Emission Tomogram(PET). But that case shows no abnormal finding in ophthalmological and radiological study except homonymous hemianopsia.
METHODS
A 22 year-old female patient was referred for the ophthalmologic handicap check-up. She had past history of brain injury by traffic accident an 1 year ago. Her corrected visual acuity was 1.0 and IOP was normal. She did not show the opthalmologic, neurologic abnormality, and electrophysiologic examination except for the left homonymous hemianopsia on visual field test. Computerized Tomogram(CT) and Magnetic Resonance Imaging(MRI) study show no abnormalities. Positron Emission Tomogram(PET) was performed to find an visual cortical lesion.
RESULTS
Positron Emission Tomogram(PET) show diffuse hypometabolism in the bilateral posterior frontoparietal cortex and associated hypometabolism in the visual cortex.

Keyword

Head injury; Positron Emission Tomogram(PET); Visual cortex

MeSH Terms

Accidents, Traffic
Brain Injuries
Craniocerebral Trauma*
Electrons*
Female
Glucose
Head*
Hemianopsia
Humans
Visual Acuity
Visual Cortex
Visual Field Tests
Visual Fields*
Young Adult
Glucose