Publication Type Academic Article
Authors Butler T, Hirsch L, Claassen J
Journal BMC Nucl Med
Volume 4
Issue 1
Pagination 2
Date Published 11/29/2004
ISSN 1471-2385
Abstract BACKGROUND: Single photon emission computed tomography (SPECT) following injection of radiotracer during a seizure is known as ictal SPECT. Comparison of an ictal SPECT study to a baseline or interictal study can aid identification of a seizure focus. CASE PRESENTATION: A young woman with encephalitis and refractory seizures underwent brain SPECT during a period of frequent seizure-like episodes, and during a seizure-free period. A focal area of increased radiotracer uptake present only when she was experiencing frequent seizure-like episodes was originally localized to the brainstem, but with later computerized co-registration of SPECT to MRI, was found to lie outside the brain, in the region of the sphenoid sinus. CONCLUSION: Low-resolution SPECT images present difficulties in interpretation, which can be overcome through co-registration to higher-resolution structural images.
DOI 10.1186/1471-2385-4-2
PubMed ID 15569392
PubMed Central ID PMC535895
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