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Cerebral hemispheric and contralateral cerebellar hypoperfusion during a transient ischemic attack
Summary
Transient cerebral ischemia in a 79-year-old woman caused temporary left hemisphere and right cerebellum hypoperfusion. This single photon emission computed tomography (SPECT) finding in transient ischemic attack (TIA) is reported for the first time.
Area of Science:
- Neurology
- Neuroimaging
- Cerebrovascular disease
Background:
- Transient ischemic attacks (TIAs) involve temporary blood flow disruptions to the brain, causing stroke-like symptoms.
- Understanding the precise neurovascular changes during TIAs is crucial for diagnosis and treatment.
- Single photon emission computed tomography (SPECT) is a neuroimaging technique used to assess regional cerebral blood flow.
Observation:
- A 79-year-old woman presented with acute motor aphasia and right hemiparesis, indicative of a potential cerebrovascular event.
- Single photon emission computed tomography (SPECT) revealed significant hypoperfusion in the left middle cerebral artery territory and the right cerebellum.
- Neurological deficits, including mild naming difficulty, resolved completely within 24 hours.
Findings:
- The study documented focal hemispheric hypoperfusion in the left middle cerebral artery territory.
- Contralateral cerebellar hypoperfusion was observed in the right cerebellum.
- These perfusion deficits resolved, with a follow-up SPECT scan showing normal results 10 days later.
Implications:
- This case suggests that transient cerebral ischemia can manifest as both hemispheric and contralateral cerebellar hypoperfusion.
- The findings highlight the utility of SPECT in identifying perfusion abnormalities during TIAs.
- This report expands the understanding of the neurovascular patterns associated with transient ischemic events.