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Page: Diagnosis
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Stroke is diagnosed through several techniques: a neurological examination, blood tests, CT scans (without contrast enhancements) or MRI scans, Doppler ultrasound, and arteriography.
Physical examination
A systematic review by the Rational Clinical Examination found that acute facial paresis, arm drift, or abnormal speech are the best findings.
Imaging
For diagnosing ischemic stroke in the emergency setting:
* CT scans (without contrast enhancements)
sensitivity= 16%
specificity = 96%
* MRI scan
sensitivity = 83%
specificity = 98%
For diagnosing hemorrhagic stroke in the emergency setting:
* CT scans (without contrast enhancements)
sensitivity= 89%
specificity = 100%
* MRI scan
sensitivity = 81%
specificity = 100%
For detecting hemorrhages, MRI scan is better
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Important notice:
The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other
qualified health provider with any questions you may have regarding a medical condition.
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