Results 91 to 100 of about 66,223 (392)

Optimizing human pulmonary perfusion measurement using an in silico model of arterial spin labeling magnetic resonance imaging. [PDF]

, 2019
Arterial spin labeling (ASL) magnetic resonance imaging (MRI) is an imaging methodology that uses blood as an endogenous contrast agent to quantify flow.
Addo, Daniel A, Burrowes, Kelly Suzzane, Kang, Wendy, Prisk, Gordon Kim, Tawhai, Merryn H   +4 more
core   +1 more source

Influence of 100% and 40% oxygen on penumbral blood flow, oxygen level, and T2*-weighted MRI in a rat stroke model [PDF]

, 2011
Accurate imaging of the ischemic penumbra is a prerequisite for acute clinical stroke research. T2* magnetic resonance imaging (MRI) combined with an oxygen challenge (OC) is being developed to detect penumbra based on changes in blood deoxyhemoglobin ...
Baskerville, Tracey, Deuchar, Graeme A., Holmes, William M., Macrae, I. Mhairi, McCabe, Chris, Robertson, Craig A., Santosh, Celestine   +6 more
core   +1 more source

Recent Advances in Collective Behaviors of Micro/Nanomotor Swarms

Advanced Materials, EarlyView.
This review describes the driving forces behind collective motion, explores the self‐organization of micro/nano swarms across zero‐dimensional (0D), one‐dimensional (1D), two‐dimensional (2D), and three‐dimensional (3D) spaces, and highlights their potential in drug delivery, environmental monitoring, and smart devices.
Siwen Sun, Bingbing Sun, Alexander B. Cook, Tania Patiño Padial, Jan C. M. van Hest   +4 more
wiley   +1 more source

Ensuring both velocity and spatial responses robust to B0/B1+ field inhomogeneities for velocity‐selective arterial spin labeling through dynamic phase‐cycling

Magnetic Resonance in Medicine, 2020
To evaluate both velocity and spatial responses of velocity‐selective arterial spin labeling (VS‐ASL), using velocity‐insensitive and velocity‐compensated waveforms for control modules, as well as a novel dynamic phase‐cycling approach, at different B0 ...
Dapeng Liu, Wenbo Li, Feng Xu, Dan Zhu, T. Shin, Q. Qin   +5 more
semanticscholar   +1 more source

Application value of three-dimensional arterial spin labeling perfusion imaging in investigating cerebral blood flow dynamics in normal full-term neonates

BMC Pediatrics, 2019
Background This study aims to investigate the application value of three-dimensional arterial spin labeling (3DASL) in investigating cerebral blood flow dynamics in full-term neonates.
Jia-Ning Wang, Jia Li, Huai-Jun Liu, Xiao-Ping Yin, Huan Zhou, Ya-Ting Zheng, Na An, Si Liang, Zuo-Jun Geng   +8 more
doaj   +1 more source

Can magnetic resonance imaging predict preoperative consistency and vascularity of intracranial meningioma?

The Egyptian Journal of Radiology and Nuclear Medicine, 2022
Background Meningiomas are considered the most common primary intracranial neoplasms. The surgical resection is the main curative therapy. Evaluation of meningioma consistency and vascularity is important before surgery to be aware about the difficulties
Ahmed A. ElBeheiry, Ahmed A. Fayed, Ahmed H. Alkassas, Doaa M. Emara   +3 more
doaj   +1 more source

Physiopathological implications of abnormal Arterial Spin Labeling perfusion in thrombotic microangiopathy

Thrombosis Update, 2021
Thrombotic microangiopathies are a group of clinical syndromes characterized by microangiopathic hemolytic anemia, thrombocytopenia and end-organ damage, which can compromise the central nervous system.
Xavier Merchán-del-Hierro, María-Victoria Camino, Gabriel Persi, Carlos Rugilo, María-Pilar Sánchez-de-Paz, Emilia Gatto   +5 more
doaj   +1 more source

Recent Progress on Flexible Multimodal Sensors: Decoupling Strategies, Fabrication and Applications

Advanced Materials, EarlyView.
In this review, we establish a tripartite decoupling framework for flexible multimodal sensors, which elucidates the underlying principles of signal crosstalk and their solutions through material design, structural engineering, and AI algorithms. We also demonstrate its potential applications across environmental monitoring, health monitoring, human ...
Tao Wu, Yu‐Tao Li, Luyu Zhao, Yi Zhang, Zhaojie Zhang, Jian Yuan, Yiwen Wu, Anqi Che, Yuanxiao Ma, Yang Chai, Yeliang Wang   +10 more
wiley   +1 more source

Combined Denoising and Suppression of Transient Artifacts in Arterial Spin Labeling MRI Using Deep Learning

Journal of Magnetic Resonance Imaging, 2020
Arterial spin labeling (ASL) is a useful tool for measuring cerebral blood flow (CBF). However, due to the low signal‐to‐noise ratio (SNR) of the technique, multiple repetitions are required, which results in prolonged scan times and increased ...
P. Hales, J. Pfeuffer, Chris A. Clark
semanticscholar   +1 more source

Lattice Structures for Bone Replacement: The Intersection of Bone Biomechanics, Lattice Design, and Additive Manufacturing

Advanced Materials Technologies, EarlyView.
This review outlines how understanding bone's biology, hierarchical architecture, and mechanical anisotropy informs the design of lattice structures that replicate bone morphology and mechanical behavior. Additive manufacturing enables the fabrication of orthopedic implants that incorporate such structures using a range of engineering materials ...
Stylianos Kechagias, Maxwell J. Munford, Frederik C.H. Masure, Richard J. van Arkel, Reece N Oosterbeek   +4 more
wiley   +1 more source