?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Perfusion-based+brain+connectivity%3A+PASL+vs+PCASL&rft.creator=De+Blasi%2C+B&rft.creator=Menegaz%2C+G&rft.creator=Barnes%2C+A&rft.creator=De+Vita%2C+E&rft.creator=Storti%2C+SF&rft.creator=Galazzo%2C+IB&rft.creator=Koepp%2C+M&rft.description=Arterial+Spin+Labelling+(ASL)+is+a+magnetic+resonance+imaging+technique+which+provides+a+more+direct+measure+of+neural+activity+as+compared+to+blood-oxygenation-level-dependent+(BOLD)+contrast.+While+it+has+been+used+for+years+for+perfusion+quantification%2C+ASL+has+recently+been+adopted+for+functional+connectivity+(FC)+analyses.+However%2C+the+impact+of+the+different+ASL+schemes+on+connectivity+estimates+remains+to+be+fully+investigated.+In+this+work%2C+pulsed+and+pseudo+continuous+ASL+(PASL%2FpCASL)+were+compared+in+terms+of+cerebral+blood+flow+(CBF)+and+FC+measures.+In+line+with+literature%2C+higher+CBF+and+increased+spatial+signal-to-noise+ratio+were+reported+for+pCASL%2C+as+compared+to+PASL.+In+terms+of+FC%2C+pCASL+was+able+to+more+reliably+recover+the+main+networks+and+showed+higher+correlations+between+brain+areas.+These+preliminary+results+suggest+pCASL+to+provide+reliable+and+stable+results%2C+not+only+for+CBF+estimation+but+also+for+FC+analyses.&rft.subject=ASL%2C+PASL%2C+pCASL%2C+CBF%2C+Functional+Connectivity&rft.publisher=IEEE&rft.date=2019-11-18&rft.type=Proceedings+paper&rft.language=eng&rft.source=+++++In%3A++Proceedings+of+the+2019+27th+European+Signal+Processing+Conference+(EUSIPCO).++++IEEE%3A+A+Coruna%2C+Spain%2C+Spain.+(2019)+++++&rft.format=text&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10088501%2F1%2FEUSIPCO2019_ASL_Reviewed-v2-Checked_PID5988075.pdf&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10088501%2F&rft.rights=open