FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2001348377> ?p ?o ?g. }

• W2001348377 endingPage "160" @default.
• W2001348377 startingPage "154" @default.
• W2001348377 abstract "Functional magnetic resonance imaging (fMRI) based on both perfusion and blood oxygenation level-dependent (BOLD) contrasts has been widely applied in spatiotemporal mapping of the human brain function. Temporal resolving power of fMRI is limited by the smoothed hemodynamic response function dispersed from the neuronal activity. In this study, temporal modulation transfer functions were utilized to quantify the resolving powers of perfusion and BOLD fMR signals in time domain. The impulse response function was determined using brief visual stimulations and event-related image acquisition schemes. An important feature of arterial spin labeling techniques is that quantitative perfusion and BOLD signals could be simultaneously acquired. This simultaneous BOLD response may arise from signals that are more proximal to capillary beds, and its temporal resolution may be different from that of the typical BOLD response. Therefore, we assessed and compared the temporal resolving capabilities of perfusion, simultaneous BOLD, and the typical BOLD response obtained from the gradient echo EPI pulse sequence. Full-width-at-half-maximums of perfusion and simultaneous BOLD measurements were significantly smaller than that of BOLD ones vs and vs respectively). The corresponding temporal resolving powers of perfusion and simultaneous BOLD signals were statistically better than that of BOLD signals vs and vs respectively). Our results showed that the typical BOLD response was significantly smoothed from the perfusion response, thus resulting in a degraded temporal resolving power. However, results from the simultaneous BOLD and perfusion measurements were not significantly different. Biophysical implications of the experimental outcomes were further investigated using a computer simulation based on the Balloon model. By fitting the measured data into the model, an apparently longer transit time was obtained for the typical BOLD signal (1.7 s), comparing to that for the simultaneous BOLD one (1.2 s). Therefore, the simultaneous BOLD signal was regarded as less susceptible to the variations from local draining veins. Combining the simulation result with the significantly discrepant resolving powers between the two BOLD signals, we speculated that the blurred effects from large vessels played a predominant role that further reduced the temporal resolution of the BOLD-based fMRI from the perfusion response." @default.
• W2001348377 created "2016-06-24" @default.
• W2001348377 creator A5013558458 @default.
• W2001348377 creator A5030798751 @default.
• W2001348377 creator A5047586496 @default.
• W2001348377 creator A5049143445 @default.
• W2001348377 creator A5086469729 @default.
• W2001348377 date "2003-12-22" @default.
• W2001348377 modified "2023-10-01" @default.
• W2001348377 title "Temporal resolving power of perfusion- and BOLD-based event-related functional MRI" @default.
• W2001348377 cites W1881027388 @default.
• W2001348377 cites W1967009686 @default.
• W2001348377 cites W1972223851 @default.
• W2001348377 cites W1975290352 @default.
• W2001348377 cites W1983500965 @default.
• W2001348377 cites W1985593502 @default.
• W2001348377 cites W1988095568 @default.
• W2001348377 cites W1990239059 @default.
• W2001348377 cites W1993303421 @default.
• W2001348377 cites W1994330149 @default.
• W2001348377 cites W1996498530 @default.
• W2001348377 cites W2002660165 @default.
• W2001348377 cites W2008558645 @default.
• W2001348377 cites W2010663917 @default.
• W2001348377 cites W2013052341 @default.
• W2001348377 cites W2013713875 @default.
• W2001348377 cites W2014594668 @default.
• W2001348377 cites W2017822203 @default.
• W2001348377 cites W2021496866 @default.
• W2001348377 cites W2024210200 @default.
• W2001348377 cites W2031173074 @default.
• W2001348377 cites W2050717100 @default.
• W2001348377 cites W2056022329 @default.
• W2001348377 cites W2057376755 @default.
• W2001348377 cites W2067508420 @default.
• W2001348377 cites W2083136232 @default.
• W2001348377 cites W2111609296 @default.
• W2001348377 cites W2120800380 @default.
• W2001348377 cites W2123586737 @default.
• W2001348377 cites W2129815969 @default.
• W2001348377 cites W2130259255 @default.
• W2001348377 cites W2147089914 @default.
• W2001348377 cites W2149153247 @default.
• W2001348377 cites W2149953389 @default.
• W2001348377 cites W2170117095 @default.
• W2001348377 cites W2170797424 @default.
• W2001348377 doi "https://doi.org/10.1118/1.1634480" @default.
• W2001348377 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/14761031" @default.
• W2001348377 hasPublicationYear "2003" @default.
• W2001348377 type Work @default.
• W2001348377 sameAs 2001348377 @default.
• W2001348377 citedByCount "4" @default.
• W2001348377 countsByYear W20013483772019 @default.
• W2001348377 countsByYear W20013483772021 @default.
• W2001348377 crossrefType "journal-article" @default.
• W2001348377 hasAuthorship W2001348377A5013558458 @default.
• W2001348377 hasAuthorship W2001348377A5030798751 @default.
• W2001348377 hasAuthorship W2001348377A5047586496 @default.
• W2001348377 hasAuthorship W2001348377A5049143445 @default.
• W2001348377 hasAuthorship W2001348377A5086469729 @default.
• W2001348377 hasConcept C119666444 @default.
• W2001348377 hasConcept C120665830 @default.
• W2001348377 hasConcept C121332964 @default.
• W2001348377 hasConcept C126838900 @default.
• W2001348377 hasConcept C134306372 @default.
• W2001348377 hasConcept C135691158 @default.
• W2001348377 hasConcept C136229726 @default.
• W2001348377 hasConcept C143409427 @default.
• W2001348377 hasConcept C146957229 @default.
• W2001348377 hasConcept C15744967 @default.
• W2001348377 hasConcept C169760540 @default.
• W2001348377 hasConcept C182752723 @default.
• W2001348377 hasConcept C2779226451 @default.
• W2001348377 hasConcept C33923547 @default.
• W2001348377 hasConcept C41008148 @default.
• W2001348377 hasConcept C46141821 @default.
• W2001348377 hasConcept C62520636 @default.
• W2001348377 hasConcept C70836080 @default.
• W2001348377 hasConcept C71924100 @default.
• W2001348377 hasConcept C72279823 @default.
• W2001348377 hasConceptScore W2001348377C119666444 @default.
• W2001348377 hasConceptScore W2001348377C120665830 @default.
• W2001348377 hasConceptScore W2001348377C121332964 @default.
• W2001348377 hasConceptScore W2001348377C126838900 @default.
• W2001348377 hasConceptScore W2001348377C134306372 @default.
• W2001348377 hasConceptScore W2001348377C135691158 @default.
• W2001348377 hasConceptScore W2001348377C136229726 @default.
• W2001348377 hasConceptScore W2001348377C143409427 @default.
• W2001348377 hasConceptScore W2001348377C146957229 @default.
• W2001348377 hasConceptScore W2001348377C15744967 @default.
• W2001348377 hasConceptScore W2001348377C169760540 @default.
• W2001348377 hasConceptScore W2001348377C182752723 @default.
• W2001348377 hasConceptScore W2001348377C2779226451 @default.
• W2001348377 hasConceptScore W2001348377C33923547 @default.
• W2001348377 hasConceptScore W2001348377C41008148 @default.
• W2001348377 hasConceptScore W2001348377C46141821 @default.
• W2001348377 hasConceptScore W2001348377C62520636 @default.
• W2001348377 hasConceptScore W2001348377C70836080 @default.

• next