Results 151 to 160 of about 1,187,345 (199)

Clinical Applications of Arterial Spin Labeling

NMR in Biomedicine, 2013
MR arterial spin labeling is primarily applied as a neuroimaging method to measure cerebral blood flow. As this technique becomes more widely available, a basic understanding of the clinical applications is necessary for optimal utilization in the setting of patient care.
Joseph A. Maldjian, Christopher Whitlow
exaly   +3 more sources

Arterial Spin Labeling in Pediatric Neuroimaging

Seminars in Pediatric Neurology, 2020
Perfusion imaging using arterial spin labeling noninvasively evaluates cerebral blood flow utilizing arterial blood water as endogenous tracer. It does not require the need of radiotracer or intravenous contrast and offers unique complimentary information in the imaging of pediatric brain.
Srikala, Narayanan   +2 more
openaire   +2 more sources

Quantitative multiple boli arterial spin labeling

Magnetic Resonance Imaging, 2023
The mbASL sequence is a hybrid between PASL and pCASL. It was shown to produce high SNR perfusion data. Quantification is crucial in order to produce accurate mbASL CBF maps. We have shown successful quantification by modifying the Buxton ASL kinetic model, optimising the number of pulses used for inversion and examining the optimal labelling slab ...
Samantha, Paterson   +3 more
openaire   +2 more sources

Arterial spin labeling: a technical overview

Acta Radiologica, 2018
Arterial spin labeling (ASL) is a non-invasive magnetic resonance imaging perfusion method based on changes in net-magnetization of blood water. The absence of contrast use and ionizing radiation, renders ASL valuable in hyper-acute settings as a monitoring tool for repeated dynamical measurements during and after intervention, and for patients with ...
Inger Havsteen   +3 more
openaire   +3 more sources

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.
openaire   +2 more sources

MR Angiography and Arterial Spin Labelling

2010
MRI offers the ability to visualise and measure blood flow in the human body non-invasively. MR angiography (MRA) provides images of the arterial blood vessels within the body and allows measurement of blood velocities along these arteries. Arterial spin labelling (ASL) is a method for measuring the perfusion of blood into tissue (i.e.
David, Thomas, Jack, Wells
openaire   +2 more sources

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
openaire   +2 more sources

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   +4 more
openaire   +2 more sources

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   +2 more
openaire   +2 more sources

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