Results 21 to 30 of about 49,733 (292)

Multiphase arterial spin labeling imaging to predict early recurrent ischemic lesion in acute ischemic stroke

Scientific Reports, 2022
In acute ischemic stroke (AIS), the hemodynamics around the lesion are important because they determine the recurrence or prognosis of the disease. This study evaluated the effects of perfusion deficits in multiphase arterial spin labeling (ASL) and ...
Ki-Woong Nam, Chi Kyung Kim, Byung-Woo Yoon, Inpyeong Hwang, Chul-Ho Sohn   +4 more
doaj   +1 more source

Assessment of Arterial Transit Time and Cerebrovascular Reactivity in Moyamoya Disease by Simultaneous PET/MRI

Diagnostics, 2023
We investigated the relationship between MRI-arterial spin labeling (ASL) parameters and PET-cerebral blood flow (CBF)/cerebrovascular reactivity (CVR) simultaneously obtained by PET/MRI in Moyamoya disease.
Kenji Takata, Hirohiko Kimura, Shota Ishida, Makoto Isozaki, Yoshifumi Higashino, Ken-Ichiro Kikuta, Hidehiko Okazawa, Tetsuya Tsujikawa   +7 more
doaj   +1 more source

Recent progress in ASL [PDF]

NeuroImage, 2019
This article aims to provide the reader with an overview of recent developments in Arterial Spin Labeling (ASL) MRI techniques. A great deal of progress has been made in recent years in terms of the SNR and acquisition speed. New strategies have been introduced to improve labeling efficiency, reduce artefacts, and estimate other relevant physiological ...
Luis, Hernandez-Garcia, Anish, Lahiri, Jonas, Schollenberger   +2 more
openaire   +2 more sources

ASL Metabolically Regulates Tyrosine Hydroxylase in the Nucleus Locus Coeruleus

Cell Reports, 2019
Summary: Patients with germline mutations in the urea-cycle enzyme argininosuccinate lyase (ASL) are at risk for developing neurobehavioral and cognitive deficits. We find that ASL is prominently expressed in the nucleus locus coeruleus (LC), the central
Shaul Lerner, Elmira Anderzhanova, Sima Verbitsky, Raya Eilam, Yael Kuperman, Michael Tsoory, Yuri Kuznetsov, Alexander Brandis, Tevie Mehlman, Ram Mazkereth, Robert McCarter, Menahem Segal, Sandesh C.S. Nagamani, Alon Chen, Ayelet Erez, Fabienne Dietrich Alber, Talin Babikian, Heidi Bender, Christopher Boys, David Breiger, Corinna Buerger, Peter Burgard, Mina Nguyen-Driver, Benjamin Goodlett, Elizabeth Kerr, Casey Krueger, Eva Mamak, Jacqueline H. Sanz, David Schwartz, Susan Caudle, Arianna Stefanos, Rachel Tangen, Magdalena Walter, Susan Waisbren, Greta Wilkening   +34 more
doaj   +1 more source

Comparison of arterial spin labeling and dynamic susceptibility contrast perfusion MRI in patients with acute stroke. [PDF]

PLoS ONE, 2013
BACKGROUND: The aim of this study was to evaluate whether arterial spin labeling (ASL) perfusion magnetic resonance imaging (MRI) can reliably quantify perfusion deficit as compared to dynamic susceptibility contrast (DSC) perfusion MRI.
Yen-Chu Huang, Ho-Ling Liu, Jiann-Der Lee, Jen-Tsung Yang, Hsu-Huei Weng, Meng Lee, Mei-Yu Yeh, Yuan-Hsiung Tsai   +7 more
doaj   +1 more source

COMT Val158Met Polymorphism Influences the Cerebral Blood Flow Changes Related to Psychomotor Retardation in Major Depressive Disorder

Neuropsychiatric Disease and Treatment, 2022
Yingying Yin,1,2 Chunming Xie,3 Haisan Zhang,4 Hongxing Zhang,5 Zhijun Zhang,3 Yonggui Yuan1,2 1Department of Psychosomatics and Psychiatry, ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, 210009, People’s Republic of China ...
Yin Y, Xie C, Zhang H, Zhang H, Zhang Z, Yuan Y   +5 more
doaj  

Arterial spin labeling image findings in the acute phase in paediatric patients with acute encephalopathy with biphasic seizures and late reduced diffusion

Frontiers in Neuroscience, 2023
IntroductionDiagnosing acute encephalopathy with biphasic seizures and late reduced diffusion (AESD) after the first seizure (early seizure/seizures, ES/ESs) is challenging because a reduced apparent diffusion coefficient (ADC) in the cortical or ...
Go Kawano, Kentaro Tokutomi, Yoshitomo Kikuchi, Kensuke Sakata, Hirotaka Sakaguchi, Takaoki Yokochi, Yukihiro Akita, Toyojiro Matsuishi, Toyojiro Matsuishi, Toyojiro Matsuishi   +9 more
doaj   +1 more source

Tunable Plasmonic Response of Silver Nanoparticles Entangled in Detonation Nanodiamond Network via Colloidal Self‐Assembly

Advanced Materials Interfaces, EarlyView.
Detonation nanodiamonds form a network that entangles silver nanoparticles into stable nanocomplexes. The structure can fine‐tune and enhance plasmonic absorption through nearfield electromagnetic interactions but prevents silver particle aggregation. The study shows how the arrangement and concentration of particles affect light absorption, offering a
Vendula Hrnčířová, Markéta Šlapal Bařinková, Muhammad Qamar, Kateřina Kolářová, Bohuslav Rezek   +4 more
wiley   +1 more source

Atherosclerotic risk is associated with cerebral perfusion – A cross-sectional study using arterial spin labeling MRI

NeuroImage: Clinical, 2022
Background: Arterial spin labeling (ASL) magnetic resonance imaging (MRI) may be a promising technique to evaluate the presence of cerebral atherosclerosis.
Melanie Hafdi, Henk JMM Mutsaerts, Jan Petr, Edo Richard, Jan Willem van Dalen   +4 more
doaj   +1 more source

Three‐Year Follow‐Up of Neoadjuvant Tislelizumab with Chemotherapy in Locally Advanced Gastric and Gastroesophageal Junction Adenocarcinoma: Revealing Cancer‐Associated Fibroblast Heterogeneity Corresponding to PD‐1 Blockade Efficacy

Advanced Science, EarlyView.
Heterogeneous cancer‐associated fibroblasts orchestrate dual immune microenvironments in LAGC. Abstract The potential for immunotherapy in patients with locally advanced gastric cancer (LAGC) is recently confirmed. To report the 3‐year follow‐up data are aimed from a novel clinical trial. This is a prospective single‐arm phase II trial.
Yao Lin, Xiong Sun, Chengguo Li, Ming Yang, Ke Wu, Ke Liu, Anshu Li, Xiaoming Shuai, Kailin Cai, Zheng Wang, Guobin Wang, Peng Zhang, Jianfeng Shen, Kaixiong Tao, Yuping Yin   +14 more
wiley   +1 more source