Technetium-99m-ECD SPECT fails to show focal hyperemia of acute herpes encephalitis

Autor: F, Fazekas, G, Roob, F, Payer, P, Kapeller, S, Strasser-Fuchs, R M, Aigner
Rok vydání: 1998
Předmět:
Zdroj: Journal of nuclear medicine : official publication, Society of Nuclear Medicine. 39(5)
ISSN: 0161-5505
Popis: This is a case of herpes simplex encephalitis (HSE) examined with 99mTc-ethyl cysteinate dimer (ECD) and 99mTc-hexamethyl propyleneamine oxime (HMPAO) SPECT. Static images obtained with 99mTc-ECD showed a reduced tracer uptake of the temporal lobe but focal hyperactivity using 99mTc-HMPAO. Dynamic images indicated regional increase of cerebral blood perfusion with both tracers. Technetium-99m-ECD had rapid washout from the inflamed tissue, while 99mTc-HMPAO had avid uptake. Hypofixation of 99mTc-ECD leads to failure to detect the characteristic finding of temporal lobe hyperemia in acute HSE.
Databáze: OpenAIRE