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Transient global amnesia following cerebral angiography with non-ionic contrast medium
1Westmead Hospital, NSW, Australia.
Australasian Radiology
|August 1, 1994
Summary
Transient global amnesia (TGA), a rare memory disorder, can occur after cerebral angiography. This study examines two cases, suggesting contrast media as a potential cause.
Area of Science:
- Neurology
- Radiology
Background:
- Transient global amnesia (TGA) is characterized by temporary memory loss and learning impairment.
- Cerebral angiography is an imaging technique used to visualize blood vessels in the brain.
Observation:
- Two cases of TGA following non-ionic contrast media use during cerebral angiography are presented.
- The neuroanatomy of memory and potential TGA triggers were reviewed.
Findings:
- Contrast media used in cerebral angiography may induce TGA.
- Potential mechanisms include cerebral ischemia, arterial spasm, or direct toxic effects.
Implications:
- Awareness of TGA as a potential complication of cerebral angiography is crucial.
- Further research into contrast media safety in neuroimaging is warranted.