First-ever seizure

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Author: Mikael Häggström [notes 1]

Choice of investigation

In a first-ever unprovoked seizure in adults, MRI of the head is generally the first investigation of choice because of its high sensitivity. However, if MRI is not readily available then initial imaging with head CT is reasonable. If such CT is normal, MRI should still be considered if seizures recur or in the presence of focal electroencephalography (EEG) abnormalities.[1]

References

  1. ↑ Ho, K.; Lawn, N.; Bynevelt, M.; Lee, J.; Dunne, J. (2013). "Neuroimaging of first-ever seizure: Contribution of MRI if CT is normal ". Neurology: Clinical Practice 3 (5): 398–403. doi:10.1212/CPJ.0b013e3182a78f25. ISSN 2163-0402.  American Academy of Neurology


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