Results 11 to 20 of about 16,886 (302)

Superselective pseudocontinuous arterial spin labeling

Magnetic Resonance in Medicine, 2010
AbstractA 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
Helle, M., Norris, D.G., Rufer, S., Alfke, K., Jansen, O., Osch, M.J.P. van   +5 more
openaire   +6 more sources

Arterial Spin-Labeling Perfusion for PHACE Syndrome [PDF]

American Journal of Neuroradiology, 2020
Arterial stroke is a rare-but-reported complication in patients with posterior fossa brain malformations, hemangiomas, arterial anomalies, coarctation of the aorta and cardiac defects, and eye abnormalities (PHACE) syndrome. Currently, stroke risk is inferred by the severity of arterial anomalies identified on MRA, though no evidenced-based data exist.
M.D. Mamlouk, A. Vossough, L. Caschera, M. Maheshwari, C.P. Hess   +4 more
openaire   +6 more sources

Brain perfusion imaging by multi‐delay arterial spin labeling: Impact of modeling dispersion and interaction with denoising strategies and pathology

, 2023
Purpose: Arterial spin labeling (ASL) acquisitions at multiple post-labeling delays may provide more accurate quantification of cerebral blood flow (CBF), by fitting appropriate kinetic models and simultaneously estimating relevant parameters such as the
Miguel V. Baptista, Chappell, Michael A., Joana Pinto, Pinto, Joana, Pires Monteiro, Sara, Michael A. Chappell, Pedro Vilela, Baptista, Miguel V., Sara Pires Monteiro, Patricia Figueiredo, Fouto, Ana, Ana Fouto, Vilela, Pedro, Figueiredo, Patricia   +13 more
core   +1 more source

Unilateral anoxic brain injury secondary to strangulation identified on conventional and arterial spin-labeled perfusion imaging

Radiology Case Reports, 2018
Anoxic brain injury on magnetic resonance imaging classically demonstrates symmetric diffusion restriction involving the highly metabolic structures including the basal ganglia and cortex and global hyperperfusion on arterial spin labeling perfusion. The
D. Dominik Prosser, MD, Tamara Grigsby, MD, Jeffrey M. Pollock, MD   +2 more
doaj   +1 more source

Histogram-Based Analysis of Low- and High-Grade Glioma and Its Surrounding Edema Using Arterial Spin Labeling Magnetic Resonance Imaging

Applied Sciences, 2023
A glioma is a type of intra-axial brain tumor originating from the glial cells. Making up about one-third of all brain tumors, a timely diagnosis alongside correct grading and subsequent therapy planning is crucial.
Thomas Lindner, Lasse Dührsen, Anna Andriana Kyselyova, Wiebke Entelmann, Luis Hau, Jens Fiehler   +5 more
doaj   +1 more source

Modified pulsed continuous arterial spin labeling for labeling of a single artery [PDF]

Magnetic Resonance in Medicine, 2010
AbstractImaging the contribution of different arterial vessels to the blood supply of the brain can potentially guide the treatment of vascular disease and other disorders. Previously available only with catheter angiography, vessel‐selective labeling of arteries has now been demonstrated with pulsed and continuous arterial spin labeling methods ...
Weiying, Dai, Philip M, Robson, Ajit, Shankaranarayanan, David C, Alsop   +3 more
openaire   +2 more sources

Detection of Crossed Cerebellar Diaschisis by Intravoxel Incoherent Motion MR Imaging in Subacute Ischemic Stroke

Cell Transplantation, 2019
Intravoxel incoherent motion has received extensive attention in brain studies for its potential as a non-invasive magnetic resonance perfusion method. However, studies on intravoxel incoherent motion imaging and crossed cerebellar diaschisis detection ...
Juan Wang, Shiteng Suo, Jinyan Zu, Wanqiu Zhu, Lijun Pan, Shaoli Song, Yang Li, Lei Li, Zengai Chen, Jianrong Xu   +9 more
doaj   +1 more source

Measurement of brain perfusion in newborns: Pulsed arterial spin labeling (PASL) versus pseudo-continuous arterial spin labeling (pCASL)

NeuroImage: Clinical, 2014
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 ...
Elodie Boudes, Guillaume Gilbert, Ilana Ruth Leppert, Xianming Tan, G. Bruce Pike, Christine Saint-Martin, Pia Wintermark   +6 more
doaj   +1 more source

A potential new role for ASL perfusion imaging: Diagnosis of metronidazole induced encephalopathy – Two companion cases

Radiology Case Reports, 2020
Metronidazole induced encephalopathy (MIE) is a rare condition due to prolonged high dose administration of metronidazole. MIE with corresponding increased perfusion on MRI arterial spin labeling (ASL) of the involved regions of the brain appears not to ...
Vivek Yedavalli, MD, MS, Bryan Lanzman, MD   +1 more
doaj   +1 more source

Determination of spin compartment in arterial spin labeling MRI [PDF]

Magnetic Resonance in Medicine, 2010
AbstractA major difference between arterial‐spin‐labeling MRI and gold‐standard radiotracer blood flow methods is that the compartment localization of the labeled spins in the arterial‐spin‐labeling image is often ambiguous, which may affect the quantification of cerebral blood flow.
Peiying, Liu, Jinsoo, Uh, Hanzhang, Lu
openaire   +2 more sources