Results 261 to 270 of about 16,886 (302)

Arterial spin labeling: Clinical applications

Journal of Neuroradiology, 2018
Arterial spin labeling (ASL) is a magnetic resonance imaging perfusion technique that enables quantification of cerebral blood flow (CBF) without the use of intravenous gadolinium contrast. An understanding of the technical basis of ASL and physiologic variations in perfusion are important for recognizing normal variants and artifacts.
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Arterial Spin Labeling Perfusion Imaging

Magnetic Resonance Imaging Clinics of North America
Noninvasive imaging of tissue perfusion is a valuable tool for both research and clinical applications. Arterial spin labeling (ASL) is a contrast-free perfusion imaging method that enables measuring and quantifying tissue blood flow using MR imaging. ASL uses radiofrequency and magnetic field gradient pulses to label arterial blood water, which then ...
Manuel, Taso, David C, Alsop
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Continuous artery‐selective spin labeling (CASSL)

Magnetic Resonance in Medicine, 2005
AbstractA new technique for selective spin labeling of individual arteries is presented. It is based on continuous arterial spin labeling (CASL) with an amplitude‐modulated control experiment. Precessionary motion of the labeling gradient about the axis of the artery, combined with an appropriate frequency modulation of the labeling RF pulse, restricts
Richard, Werner, David G, Norris, Karsten, Alfke, H Maximilian, Mehdorn, Olav, Jansen   +4 more
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Perfusion Imaging Using Arterial Spin Labeling

Topics in Magnetic Resonance Imaging, 2004
Arterial spin labeling is a magnetic resonance method for the measurement of cerebral blood flow. In its simplest form, the perfusion contrast in the images gathered by this technique comes from the subtraction of two successively acquired images: one with, and one without, proximal labeling of arterial water spins after a small delay time.
Xavier, Golay, Jeroen, Hendrikse, Tchoyoson C C, Lim   +2 more
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Arterial Spin Labeling and Central Precocious Puberty

Clinical Neuroradiology, 2018
To evaluate a non-invasive method to assess the progressivity of idiopathic central precocious puberty (CPP) by quantifying perfusion of the pituitary stalk with arterial spin labeling (ASL) and using the gonadotropin-releasing hormone (GnRH) test as a reference test to define progressive CPP.In a single center retrospective study, 52 consecutive ...
Julien Denis, Volodia Dangouloff-Ros, Graziella Pinto, Isabelle Flechtner, Marie Piketty, Dinane Samara, Raphael Levy, David Grévent, Anne-Elodie Millischer, Francis Brunelle, Vincent Prevot, Michel Polak, Nathalie Boddaert   +12 more
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Arterial spin labeling

Neurology India, 2018
Ankit, Balani, Seung Hong, Choi, Chinky, Chatur, Eun Jeong, Lee   +3 more
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Arterial Spin Labeling

2022
Val M. Runge, Johannes T. Heverhagen
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Arterial spin labeling for quantitative functional MRI

The 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2005
BOLD effect imaging is very effective for detection and localization of brain activity, and is the dominant functional imaging technique in cognitive psychology. Despite its efficiency to detect and localize active site, the technique does not lend itself easily to quantifiable measurements.
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Arterial Spin Labeling in Dementia

2017
Arterial spin labeling (ASL) is a type of MR perfusion imaging which utilizes magnetically labeled arterial blood as an intrinsic tracer. Because ASL involves no radioactive tracers or contrast administration, it is considered to be completely noninvasive.
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Arterial spin labeling MRI

2023
Dijsselhof, M., Padrela, B., Petr, J., Mutsaerts, H. J.   +3 more
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