Vessel-encoded dynamic magnetic resonance angiography using arterial spin labeling
نویسندگان
چکیده
منابع مشابه
4D Vessel-Encoded Arterial Spin Labeling Angiography
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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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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Introduction: Digital subtraction X-ray angiography (DSA) is a widely used technique for the characterization of cerebral vessels. While MRI and CT can, in principle, provide angiographic information that could replace the riskier DSA study, which requires placement of a catheter for localized contrast injection and high doses of X-ray, these techniques typically lack the vessel selectivity and...
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Introduction Carotid artery disease is a major cause of cerebral ischemia and infarction. It is routinely assessed using contrast-enhanced magnetic resonance angiography (MRA). Several methods for nonenhanced MRA exist, which may be particularly advantageous in patients with impaired renal function due to the risk of nephrogenic systemic fibrosis. Pulsed arterial spin-labeled (ASL) MRA has been...
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2010
ISSN: 0740-3194
DOI: 10.1002/mrm.22458