Cerebral Blood Flow Quantification Using Vessel-Encoded Arterial Spin Labeling
نویسندگان
چکیده
منابع مشابه
Cerebral blood flow quantification using vessel-encoded arterial spin labeling
Arterial spin labeling (ASL) techniques are gaining popularity for visualizing and quantifying cerebral blood flow (CBF) in a range of patient groups. However, most ASL methods lack vessel-selective information, which is important for the assessment of collateral flow and the arterial supply to lesions. In this study, we explored the use of vessel-encoded pseudocontinuous ASL (VEPCASL) with mul...
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T. W. Okell, P. Schmitt, X. Bi, M. A. Chappell, R. H. Tijssen, K. L. Miller, and P. Jezzard FMRIB Centre, Department of Clinical Neurosciences, University of Oxford, Oxford, Oxfordshire, United Kingdom, MR Application & Workflow Development, Siemens AG, Healthcare Sector, Erlangen, Germany, Cardiovascular MR R&D, Siemens Healthcare, Chicago, IL, United States, Institute of Biomedical Engineerin...
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A new signal-to-noise ratio (SNR) efficient method is introduced for the mapping of vascular territories based on pseudocontinuous arterial spin labeling (ASL). A pseudocontinuous tagging pulse train is modified using additional transverse gradient pulses and phase cycling to place some arteries in a tag condition, while others passing through the same tagging plane are in a control condition. ...
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BACKGROUND AND PURPOSE Perfusion-weighted imaging is used to select patients with acute ischemic stroke for intervention, but knowledge of cerebral perfusion can also inform the understanding of ischemic injury. Arterial spin labeling allows repeated measurement of absolute cerebral blood flow (CBF) without the need for exogenous contrast. The aim of this study was to explore the relationship b...
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Quantification of cerebral arterial blood volume (CBVa) is important for understanding vascular regulation. To enable measurement of CBVa with diffusion-weighted (DW) arterial spin labeling (ASL), a theoretical framework was developed using the effects of intravoxel incoherent motion (IVIM). The pseudo-diffusion coefficient (D*) in the IVIM model was evaluated at 9.4 T in DW-ASL of rat brain un...
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ژورنال
عنوان ژورنال: Journal of Cerebral Blood Flow & Metabolism
سال: 2013
ISSN: 0271-678X,1559-7016
DOI: 10.1038/jcbfm.2013.129