Pseudocontinuous arterial spin labeling with prospective motion correction (PCASL-PROMO)
نویسندگان
چکیده
منابع مشابه
Pulsed Continuous Arterial Spin Labeling (PCASL) with Prospective Motion Correction (PROMO)
J. Zhang, G. Zaharchuk, M. Moseley, E. Han, N. White, C. Roddey, D. Rettmann, A. Dale, J. Kuperman, and A. Shankaranarayanan Department of Electrical Engineering, Stanford University, Stanford, CA, United States, Department of Radiology, Stanford University, Stanford, CA, United States, Global Applied Science Lab, GE Healthcare, Menlo Park, CA, United States, Department of Neuroscience, Univers...
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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...
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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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FIG. 3. CBF maps from (a) PCASL and(b) 4-phase PCASL shows overall increase in CBF estimates with 4-phase PCASL. Phase tracking error map (c) show asymmetry of the errors induced at tagging locations. FIG. 4. Comparisons of gray matter CBF (red bar) and SNR efficiency (blue bar) normalized to the values from FAIR ASL. The error bars show the standard deviations. Multi-Phase Pseudo-Continuous Ar...
متن کاملMeasurement of brain perfusion in newborns: Pulsed arterial spin labeling (PASL) versus pseudo-continuous arterial spin labeling (pCASL)
BACKGROUND Arterial spin labeling (ASL) perfusion-weighted imaging (PWI) by magnetic resonance imaging (MRI) has been shown to be useful for identifying asphyxiated newborns at risk of developing brain injury, whether or not therapeutic hypothermia was administered. However, this technique has been only rarely used in newborns until now, because of the challenges to obtain sufficient signal-to-...
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2013
ISSN: 0740-3194
DOI: 10.1002/mrm.25024