Results 161 to 170 of about 76,930 (215)

Detunable wireless ladder resonator inserts for enhanced SNR of local array coil at 1.5T MRI

Medical Physics, EarlyView.
Abstract Background Magnetic resonance imaging (MRI) is a non‐invasive technique that produces high‐resolution images with excellent soft‐tissue contrast, crucial for diagnosing various medical conditions. A key factor in MRI quality is the signal‐to‐noise ratio (SNR), which directly affects image clarity.
Ming Lu, Ruilin Wang, Yuanyuan Chen, Rangsong Li, Xiaoyue Yang, Hao Liang, Haoqin Zhu, Xinqiang Yan   +7 more
wiley   +1 more source

Quantitative susceptibility mapping of the human carotid artery: Assessing sensitivity to elastin and collagen ex vivo

Magnetic Resonance in Medicine, EarlyView.
Abstract Purpose The aim is to establish the relationship between carotid susceptibility and microstructural components in diseased carotid arteries. Methods Excised cadaveric carotid arteries (n = 5) were scanned using high‐resolution QSM at 7 Tesla. After ex vivo imaging, all samples were brought to histology and stained for elastin, collagen, cells,
Alan J. Stone, Brooke Tornifoglio, Francesco Digeronimo, Karin Shmueli, Caitríona Lally   +4 more
wiley   +1 more source

SNR‐efficient whole‐brain pseudo‐continuous arterial spin labeling perfusion imaging at 7 T

Magnetic Resonance in Medicine, EarlyView.
Abstract Purpose To optimize pseudo‐continuous arterial spin labeling (PCASL) parameters to maximize SNR efficiency for RF power constrained whole brain perfusion imaging at 7 T. Methods We used Bloch simulations of pulsatile laminar flow to optimize the PCASL parameters for maximum SNR efficiency, balancing labeling efficiency and total RF power.
Joseph G. Woods, Yang Ji, Hongwei Li, Aaron T. Hess, Thomas W. Okell   +4 more
wiley   +1 more source

Challenges and Innovative Strategies in 3D Printing of Natural Biomolecular Hydrogels

Nano Select, EarlyView.
ABSTRACT Natural biomolecules with excellent biocompatibility, degradability, and the ability to guide effective tissue regeneration are considered ideal materials for constructing tissue engineering hydrogel scaffolds. The employing of 3D printing technology facilitates the preparation of natural biomolecular‐based scaffold for specific morphological
Jiaqi Qiu, Shuo Ma, Xue Qu
wiley   +1 more source

The role of gut microbiota‐derived metabolites in neuroinflammation

Neuroprotection, EarlyView.
Gut microbiota‐derived metabolites accumulate in the brain, activating or inhibiting microglia and astrocytes, which affects neuroinflammatory progression. The gut microbiota converts the diet into a variety of metabolites, including bile acid, trimethylamine N‑oxide (TMAO), and indole.
Lingjie Mu, Yijie Wang
wiley   +1 more source

History of pre‐eclampsia negatively impacts stroke severity postpartum in rats

Neuroprotection, EarlyView.
Diagrammatic representation of the effect of pre‐eclampsia on postpartum stroke severity. e7, gestational day 7; ePE, experimental pre‐eclampsia; NormP, normal pregnancy; PP, postpartum; tMCAO, transient middle cerebral artery occlusion. Made in Biorender.
Ari Kropf, Jennifer L. Anderson, Milena Esposito, Sarah M. Tremble, Marilyn J. Cipolla   +4 more
wiley   +1 more source

Should Transcervical Arterial Ligation Be Performed During Transoral Robotic Surgery?

The Laryngoscope, EarlyView.
Michael C. Topf, John R. de Almeida, F. Christopher Holsinger   +2 more
wiley   +1 more source

Ocular Neuromyotonia—A Rare but Reversible Cause of Intermittent Diplopia

Movement Disorders Clinical Practice, EarlyView.
Parthvi Ravat, Paul Stockle, Mahadya Rahman, Pegah Ahmadiyan Ardestani, Andrew Lee   +4 more
wiley   +1 more source

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Carotid artery occlusion

Plastic and Reconstructive Surgery, 1959
Extracranial vascular obstruction as a cause of cerebral ischemia is being recognized with increasing frequency. Carotid artery occlusion as a specific cause of neurologic deficits has drawn our attention since encountering our first case in June, 1956.
Ward M. Smathers, Homer M. Smathers
openaire   +4 more sources

Imaging of the carotid artery

Atherosclerosis, 2012
In the study of carotid arteries, modern techniques of imaging allow to analyze various alterations beyond simple luminal narrowing, including the morphology of atherosclerotic plaques, the arterial wall and the surrounding structures. By using CTA and MRI it is possible to obtain three-dimensional rendering of anatomic structures with excellent detail
SABA, LUCA, Anzidei M, SANFILIPPO, ROBERTO, MONTISCI, ROBERTO, Lucatelli P, Catalano C, Passariello R, Mallarini G.   +7 more
openaire   +4 more sources