%0 Journal Article %T Optimal individual inversion time in brain arterial spin labeling perfusion magnetic resonance imaging: correlation with carotid hemodynamics measured with cine phase-contrast magnetic resonance imaging %+ Vision, Action et Gestion d'informations en Santé (VisAGeS) %+ Service de radiologie et imagerie médicale [Rennes] = Radiology [Rennes] %+ Plateforme Neurinfo %A Ferré, Jean-Christophe %A Petr, Jan %A Barillot, Christian %A Raoult, Hélène %A Gauvrit, Jean-Yves %< avec comité de lecture %@ 0363-8715 %J Journal of Computer Assisted Tomography %I Lippincott, Williams & Wilkins %V 37 %N 2 %P 247-51 %8 2013 %D 2013 %R 10.1097/RCT.0b013e31827cd548 %M 23493214 %K brain %K magnetic resonance imaging %K perfusion imaging %K arterial spin labeling %Z Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]Journal articles %X OBJECTIVE: The quantification of cerebral blood flow using pulsed arterial spin labeling could be erroneous with a nonoptimal inversion time (TI). We suggest that the optimal individual TI is dependent on the hemodynamic values of the supra-aortic vessels. METHODS: Twenty-two healthy volunteers (mean age, 31.8 years) underwent 7 pulsed arterial spin labeling scans at 3 T with TI ranging from 1200 to 1800 milliseconds every 100 milliseconds. The quantitative hemodynamic values of carotids were computed using a cine phase-contrast sequence. Optimal TIs were determined using visual and quantitative criteria. A correlation was sought between each optimal individual TI criterion and the hemodynamic parameter values. RESULTS: The optimal group TI was 1700 milliseconds. The individual analysis showed a significant correlation between the optimal TI of white matter signal-to-noise ratio and stroke distance, and the optimal TI of contrast-to-noise ratio with mean velocity. CONCLUSIONS: A correlation was found between optimal individual TIs and carotid hemodynamic parameters. %G English %L inserm-00845274 %U https://inserm.hal.science/inserm-00845274 %~ INSERM %~ INSTITUT-TELECOM %~ EC-PARIS %~ UNIV-RENNES1 %~ CNRS %~ INRIA %~ UNIV-UBS %~ INSA-RENNES %~ INRIA-RENNES %~ IRISA %~ IRISA_SET %~ INRIA_TEST %~ TESTALAIN1 %~ HL %~ IRISA-D5 %~ INRIA2 %~ UR1-HAL %~ UR1-MATH-STIC %~ UR1-UFR-ISTIC %~ TEST-UNIV-RENNES %~ TEST-UR-CSS %~ UNIV-RENNES %~ INRIA-RENGRE %~ EMPENN-R %~ INSTITUTS-TELECOM %~ UR1-MATH-NUM %~ UR1-BIO-SA