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CT angiography in acute ischemic stroke: preliminary results
Piero Verro1, Lawrence N Tanenbaum, Neil M Borden
1University of California at Davis School of Medicine, Sacramento 95817, USA. piero.verro@ucdmc.ucdavis.edu
Stroke
|January 10, 2002
Summary
CT angiography (CTA) accurately detects vessel occlusion in acute stroke patients, predicting worse outcomes. This imaging technique aids in selecting patients for aggressive stroke treatment.
Area of Science:
- Neurology
- Radiology
- Cardiovascular Imaging
Background:
- Acute stroke diagnosis and treatment decisions are time-sensitive.
- Identifying large vessel occlusion is critical for reperfusion therapies.
Purpose of the Study:
- To assess CT angiography's (CTA) accuracy in detecting vessel occlusion before acute stroke treatment.
- To determine if CTA findings predict patient outcomes.
Main Methods:
- 54 acute stroke patients underwent immediate brain CTA.
- CTA results were correlated with digital subtraction angiography and other neuroimaging.
- Clinical outcomes were assessed using the NIH Stroke Scale (NIHSS).
Main Results:
- CTA demonstrated high accuracy, confirmed by digital subtraction angiography (86%) and other imaging (80%).
- Vessel occlusion on CTA significantly correlated with worse NIHSS scores at discharge (14.3 vs. 4.5).
- CTA-identified occlusion and admission NIHSS were independent predictors of outcome.
Conclusions:
- Acute CTA reliably identifies vessel occlusion in stroke patients.
- CTA findings strongly predict poor clinical outcomes.
- CTA provides crucial data for patient selection in acute stroke management.