Matches in SemOpenAlex for { <https://semopenalex.org/work/W1887140212> ?p ?o ?g. }
- W1887140212 endingPage "2107" @default.
- W1887140212 startingPage "2101" @default.
- W1887140212 abstract "PURPOSE To locate spoiled gradient-echo functional MR signal changes in relation to brain parenchyma. METHODS The region of the primary visual cortex was evaluated using functional MR and H2 15O positron emission tomography in each of six male subjects who were being visually stimulated by means of red light-emitting diode flash goggles. RESULTS The positron emission tomography technique demonstrated substantially greater relative signal change with visual stimulation than did the functional MR technique. Furthermore, the functional MR signal changes were concentrated in loci around the periphery of brain parenchyma exhibiting increased radiotracer activity, as opposed to being collocated. CONCLUSIONS Signal changes found using functional MR based on gradient-echo techniques reflect primarily phenomena occurring within small veins and underrepresent activity intrinsic to brain parenchyma, thus introducing potential inaccuracies in locating regions of activated brain tissue. Positron emission tomography, however, directly measures changes in metabolically related activity within the parenchyma." @default.
- W1887140212 created "2016-06-24" @default.
- W1887140212 creator A5000122559 @default.
- W1887140212 creator A5082107467 @default.
- W1887140212 creator A5083905443 @default.
- W1887140212 creator A5085424112 @default.
- W1887140212 creator A5089863250 @default.
- W1887140212 date "1995-11-01" @default.
- W1887140212 modified "2023-09-23" @default.
- W1887140212 title "Comparison of functional MR and H215O positron emission tomography in stimulation of the primary visual cortex" @default.
- W1887140212 cites W1783343300 @default.
- W1887140212 cites W1877039610 @default.
- W1887140212 cites W1898723177 @default.
- W1887140212 cites W1966011527 @default.
- W1887140212 cites W1980487275 @default.
- W1887140212 cites W1996272167 @default.
- W1887140212 cites W2002660165 @default.
- W1887140212 cites W2006799769 @default.
- W1887140212 cites W2013713875 @default.
- W1887140212 cites W2014022149 @default.
- W1887140212 cites W2014875176 @default.
- W1887140212 cites W2037945327 @default.
- W1887140212 cites W2049409221 @default.
- W1887140212 cites W2050717100 @default.
- W1887140212 cites W2056529325 @default.
- W1887140212 cites W2057748743 @default.
- W1887140212 cites W2060579549 @default.
- W1887140212 cites W2062423799 @default.
- W1887140212 cites W2063333067 @default.
- W1887140212 cites W2067508420 @default.
- W1887140212 cites W2067772873 @default.
- W1887140212 cites W2079716456 @default.
- W1887140212 cites W2079842952 @default.
- W1887140212 cites W2085061927 @default.
- W1887140212 cites W2088562154 @default.
- W1887140212 cites W2088774650 @default.
- W1887140212 cites W2093366270 @default.
- W1887140212 cites W2118224704 @default.
- W1887140212 cites W2126714749 @default.
- W1887140212 cites W2135939685 @default.
- W1887140212 cites W2148773858 @default.
- W1887140212 cites W2153655776 @default.
- W1887140212 cites W2171769399 @default.
- W1887140212 cites W23039117 @default.
- W1887140212 cites W72242977 @default.
- W1887140212 cites W985304252 @default.
- W1887140212 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8337232" @default.
- W1887140212 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/8585501" @default.
- W1887140212 hasPublicationYear "1995" @default.
- W1887140212 type Work @default.
- W1887140212 sameAs 1887140212 @default.
- W1887140212 citedByCount "5" @default.
- W1887140212 crossrefType "journal-article" @default.
- W1887140212 hasAuthorship W1887140212A5000122559 @default.
- W1887140212 hasAuthorship W1887140212A5082107467 @default.
- W1887140212 hasAuthorship W1887140212A5083905443 @default.
- W1887140212 hasAuthorship W1887140212A5085424112 @default.
- W1887140212 hasAuthorship W1887140212A5089863250 @default.
- W1887140212 hasConcept C112390072 @default.
- W1887140212 hasConcept C126838900 @default.
- W1887140212 hasConcept C142724271 @default.
- W1887140212 hasConcept C150903083 @default.
- W1887140212 hasConcept C15744967 @default.
- W1887140212 hasConcept C163716698 @default.
- W1887140212 hasConcept C169760540 @default.
- W1887140212 hasConcept C182752723 @default.
- W1887140212 hasConcept C196822366 @default.
- W1887140212 hasConcept C207001950 @default.
- W1887140212 hasConcept C2775842073 @default.
- W1887140212 hasConcept C2779345533 @default.
- W1887140212 hasConcept C29331040 @default.
- W1887140212 hasConcept C2989005 @default.
- W1887140212 hasConcept C37097830 @default.
- W1887140212 hasConcept C71924100 @default.
- W1887140212 hasConcept C86803240 @default.
- W1887140212 hasConceptScore W1887140212C112390072 @default.
- W1887140212 hasConceptScore W1887140212C126838900 @default.
- W1887140212 hasConceptScore W1887140212C142724271 @default.
- W1887140212 hasConceptScore W1887140212C150903083 @default.
- W1887140212 hasConceptScore W1887140212C15744967 @default.
- W1887140212 hasConceptScore W1887140212C163716698 @default.
- W1887140212 hasConceptScore W1887140212C169760540 @default.
- W1887140212 hasConceptScore W1887140212C182752723 @default.
- W1887140212 hasConceptScore W1887140212C196822366 @default.
- W1887140212 hasConceptScore W1887140212C207001950 @default.
- W1887140212 hasConceptScore W1887140212C2775842073 @default.
- W1887140212 hasConceptScore W1887140212C2779345533 @default.
- W1887140212 hasConceptScore W1887140212C29331040 @default.
- W1887140212 hasConceptScore W1887140212C2989005 @default.
- W1887140212 hasConceptScore W1887140212C37097830 @default.
- W1887140212 hasConceptScore W1887140212C71924100 @default.
- W1887140212 hasConceptScore W1887140212C86803240 @default.
- W1887140212 hasIssue "10" @default.
- W1887140212 hasOpenAccess W1887140212 @default.
- W1887140212 hasRelatedWork W1983151273 @default.
- W1887140212 hasRelatedWork W1987737209 @default.
- W1887140212 hasRelatedWork W2002660165 @default.
- W1887140212 hasRelatedWork W2006596836 @default.