Vessel-encoded arterial spin-labeling using pseudocontinuous tagging
نویسندگان
چکیده
منابع مشابه
Vessel-encoded arterial spin-labeling using pseudocontinuous tagging.
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. ...
متن کاملSuperselective pseudocontinuous arterial spin labeling.
A new technique for the imaging of flow territories of individual extra- and intracranial arteries is presented. The method is based on balanced pseudocontinuous arterial spin labeling but employs additional time-varying gradients in between the radiofrequency pulses of the long labeling train. The direction of the additional gradient vector is perpendicular to the selected artery and its azimu...
متن کاملRobustness and reproducibility of flow territories defined by planning-free vessel-encoded pseudocontinuous arterial spin-labeling.
Flow-territory mapping by MR imaging ASL noninvasively provides a unique insight into the distribution of cerebral perfusion. The introduction of planning-free vessel-encoded pCASL made flow-territory mapping feasible for clinical use, though lack of individual planning could impede reproducibility of this technique. We assessed the reproducibility of planning-free vessel-encoded pCASL in patie...
متن کامل4D 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...
متن کاملCerebral 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...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2007
ISSN: 0740-3194,1522-2594
DOI: 10.1002/mrm.21293