Regionale Gehirndurchblutung bei Infarktpatienten

Autor:	J. Haustein, B. Sander, Johannes Hierholzer, Wolfgang Schörner, H. Felix, M. Cordes, Böck Jc
Rok vydání:	1992
Předmět:	Contrast medium Cerebral blood flow Gadolinium DTPA Brain infarction business.industry Medicine Radiology Nuclear Medicine and imaging Signal intensity Nuclear medicine business Perfusion
Zdroj:	RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren. 156:382-387
ISSN:	1438-9010 1438-9029
Popis:	The aim was to validate the MRI assessment of regional cerebral blood flow. Measurements were performed on a 1.5 T imaging system using a fast T2*-weighted gradient-echo sequence. After intravenous injection of gadolinium-DTPA 30 images were acquired in the same slice position during 84 seconds. In 12 volunteers we observed a symmetrical cortical decrease of signal intensity during the passage of the contrast medium. In 9/23 patients with impairment of cerebral blood flow a circumscribed area of reduced signal intensity decrease (hypoperfusion) was found. In 4/23 patients the decrease of signal intensity was more pronounced than in normals (hyperfusion). In 9/23 patients signal intensity changes were normal. HMPAO-SPECT confirmed successful MRI assessment of cerebral blood flow in 22/23 patients.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ac12869254b3977e177a84e2e87968f9 https://doi.org/10.1055/s-2008-1032905 Zobrazit plný text záznamu