Results 21 to 30 of about 66,223 (392)

Velocity‐selective arterial spin labeling perfusion MRI: A review of the state of the art and recommendations for clinical implementation

Magnetic Resonance in Medicine, 2022
This review article provides an overview of the current status of velocity‐selective arterial spin labeling (VSASL) perfusion MRI and is part of a wider effort arising from the International Society for Magnetic Resonance in Medicine (ISMRM) Perfusion ...
Q. Qin, D. Alsop, D. S. Bolar, L. Hernandez-Garcia, J. Meakin, Dapeng Liu, K. Nayak, S. Schmid, M. V. van Osch, E. Wong, Joseph G. Woods, G. Zaharchuk, Moss Y. Zhao, Z. Zun, Jia Guo   +14 more
semanticscholar   +1 more source

Pseudocontinuous Arterial Spin Labeling: Clinical Applications and Usefulness in Head and Neck Entities

Cancers, 2022
Simple Summary Conventional imaging methods, such as ultrasonography, computed tomography, and magnetic resonance imaging may be inadequate to accurately diagnose lesions of the head and neck because they vary widely. Recently, the arterial spin labeling
Fumine Tanaka, M. Umino, M. Maeda, R. Nakayama, Katsuhiro Inoue, Ryota Kogue, M. Obara, H. Sakuma   +7 more
semanticscholar   +1 more source

VESPA ASL: VElocity and SPAtially Selective Arterial Spin Labeling

Magnetic Resonance in Medicine, 2022
Spatially selective arterial spin labeling (ASL) perfusion MRI is sensitive to arterial transit times (ATT) that can result in inaccurate perfusion quantification when ATTs are long.
Joseph G. Woods, E. Wong, E. Boyd, D. S. Bolar   +3 more
semanticscholar   +1 more source

Bidirectional crusher gradient method to estimate the labeling efficiency of pseudo-continuous arterial spin labeling MRI in mice. [PDF]

Magn Reson Med
Abstract Purpose To develop an experimental method for measuring the labeling efficiency of pseudo‐continuous arterial spin labeling (pCASL) MRI in mice. Methods We propose a method using bidirectional crusher gradients to modulate vascular signals in the azygos pericallosal artery (azPA) of the mouse brain, applied with and without pCASL labeling. The
Yang X, Li Y, Bibic A, Mora Alvarez MG, Lu H, Wei Z.   +5 more
europepmc   +2 more sources

Usefulness of arterial spin labeling perfusion as an initial evaluation of status epilepticus

Scientific Reports, 2021
This study aimed to evaluate the sensitivity and prognostic value of arterial spin labeling (ASL) in a large group of status epilepticus (SE) patients and compare them with those of other magnetic resonance (MR) sequences, including dynamic ...
Tae-Joon Kim, J. W. Choi, Miran Han, B. Kim, S. A. Park, K. Huh, J. Choi   +6 more
semanticscholar   +1 more source

Dynamic pseudo-continuous arterial spin labeling angiography using a 3D-radial multi-spoke spoiled gradient-recalled sequence. [PDF]

Magn Reson Med
Abstract Purpose Accurate identification of arterial feeders and draining veins is critical for treatment decision‐making in patients with intracranial high‐flow vascular lesions. Currently available MRI sequences lack the temporal and spatial resolution needed for this task.
Petrovic A, Soellradl M, Okell TW, Gauden A, Lai L, Amukotuwa SA, Bammer R.   +6 more
europepmc   +2 more sources

Improving Sensitivity of Arterial Spin Labeling Perfusion MRI in Alzheimer's Disease Using Transfer Learning of Deep Learning‐Based ASL Denoising

Journal of Magnetic Resonance Imaging, 2021
Arterial spin labeling (ASL) perfusion magnetic resonance imaging (MRI) denoising through deep learning (DL) often faces insufficient training data from patients.
Lei Zhang, Danfeng Xie, Yiran Li, Aldo Camargo, Donghui Song, Tong Lu, J. Jeudy, D. Dreizin, E. Melhem, Ze Wang   +9 more
semanticscholar   +1 more source

Whole-Cerebrum distortion-free three-dimensional pseudo-continuous arterial spin labeling at 7T

NeuroImage, 2023
Fulfilling potentials of ultrahigh field for pseudo-Continuous Arterial Spin Labeling (pCASL) has been hampered by B1/B0 inhomogeneities that affect pCASL labeling, background suppression (BS), and the readout sequence.
Chenyang Zhao, Xingfeng Shao, Qinyang Shou, Samantha J. Ma, Sayim Gokyar, Christina Graf, Rudolf Stollberger, Danny JJ Wang   +7 more
doaj   +1 more source

Are Dynamic Arterial Spin-Labeling MRA and Time-Resolved Contrast-Enhanced MRA Suited for Confirmation of Obliteration following Gamma Knife Radiosurgery of Brain Arteriovenous Malformations?

American Journal of Neuroradiology, 2021
Combining arterial spin-labeling MRA with contrast-enhanced time-resolved MRA holds promise as an alternative to DSA for confirmation of obliteration following gamma knife radiosurgery for brain AVMs, having provided 100% sensitivity and specificity in ...
A. Rojas-Villabona, F. Pizzini, T. Solbach, M. Sokolska, G. Ricciardi, C. Lemonis, E. DeVita, Y. Suzuki, M. V. van Osch, R. Foroni, M. Longhi, S. Montemezzi, D. Atkinson, N. Kitchen, A. Nicolato, X. Golay, H. Jäger   +16 more
semanticscholar   +1 more source

Quantitative Analysis of Arterial Spin Labeling FMRI Data Using a General Linear Model [PDF]

, 2010
Arterial spin labeling techniques can yield quantitative measures of perfusion by fitting a kinetic model to difference images (tagged-control). Because of the noisy nature of the difference images investigators typically average a large number of tagged
Hernandez-Garcia, Luis, Jahanian, Hesamoddin, Rowe, Daniel   +2 more
core   +2 more sources