Results 51 to 60 of about 16,886 (302)

Vessel-encoded dynamic magnetic resonance angiography using arterial spin labeling

open access: yes, 2022
S.430-438A new noninvasive MRI method for vessel-selective angiography is presented. The technique combines vessel-encoded pseudocontinuous arterial spin labeling with a two-dimensional dynamic angiographic readout and was used to image the cerebral ...
Woolrich, M.W.   +5 more
core   +1 more source

Heme‐NO Dilates Arteries via Mobilization of NO Moieties From an Intracellular NO Store Within Vascular Smooth Muscle Cells

open access: yesAdvanced Science, EarlyView.
Nitrosyl heme emerges as an extracellular nitrodilator that dilates arteries without crossing the cell membrane. Instead, heme‐NO mobilizes NO moieties from a preformed intracellular NO store within vascular smooth muscle, providing both functional and chemical evidence for the NANOS model, revealing a previously unrecognized mechanism of arterial ...
Taiming Liu   +9 more
wiley   +1 more source

Intraoperative resection control using arterial spin labeling — Proof of concept, reproducibility of data and initial results

open access: yesNeuroImage: Clinical, 2017
Objectives: Intraoperative magnetic resonance imaging is a unique tool for visualizing structures during resection and/or for updating any kind of neuronavigation that might be hampered as a result of brain shift during surgery.
Thomas Lindner   +6 more
doaj   +1 more source

ZDHHC9‐Mediated Palmitoylation of ACSL4 Drives Ferroptosis in Diabetes Mellitus–Induced Erectile Dysfunction

open access: yesAdvanced Science, EarlyView.
ABSTRACT Diabetes mellitus‐induced erectile dysfunction (DMED) is a highly prevalent complication among diabetic patients; however, its underlying pathogenic mechanisms remain incompletely understood. Metabolic disorder is a hallmark of diabetes, yet its precise contribution to DMED progression is not well defined.
Wanyang Guo   +14 more
wiley   +1 more source

Selective Arterial Spin Labeling

open access: yesTopics in Magnetic Resonance Imaging, 2016
Knowledge of the distribution of blood flowing from the heart to the brain-feeding arteries is important for the understanding and diagnosis of cerebrovascular diseases. Due to anatomical variations and anomalies within the cerebrovasculature, together with changes caused by various cerebrovascular diseases, there is high variability in the ...
Reinoud P H, Bokkers   +4 more
openaire   +4 more sources

Clinical utility of arterial spin labeling magnetic resonance imaging in the evaluation of the brain

open access: yesJournal of Medical Physics, 2023
Introduction: Cerebral blood flow (CBF) is essential for studying the brain in both normal and diseased states. Arterial spin labeling (ASL) is a functional magnetic resonance imaging (MRI) technique that uses arterial water as an endogenous tracer to ...
Harshavardhan Pobbati   +2 more
doaj   +1 more source

Arterial Spin-Labeling in the Assessment of Pediatric Nontraumatic Orbital Lesions

open access: yes, 2023
International audienceBenign and malignant pediatric orbital lesions can sometimes have overlapping features on conventional MR imaging sequences. MR imaging of 27 children was retrospectively reviewed to describe the signal of some common pediatric ...
S. Neumane   +15 more
core   +1 more source

CD4+ Tregs Drive Post‐Ischemic Sprouting Angiogenesis via Endothelial YY1/MAML1 Reactivation

open access: yesAdvanced Science, EarlyView.
ABSTRACT Microvascular complications of diabetes are chronic diseases of small vessels. We previously found that CD4+ regulatory T‐cells (Tregs) are markedly reduced in type 2 diabetes (T2D) after ischemic injury in both mice and humans, and that Treg deficiency in immunodeficient mice impairs vascular regeneration.
Hang Qu   +10 more
wiley   +1 more source

Model-based super-resolution reconstruction for pseudo-continuous Arterial Spin Labeling

open access: yesNeuroImage
Arterial spin labeling (ASL) is a promising, non-invasive perfusion magnetic resonance imaging technique for quantifying cerebral blood flow (CBF). Unfortunately, ASL suffers from an inherently low signal-to-noise ratio (SNR) and spatial resolution ...
Quinten Beirinckx   +6 more
doaj   +1 more source

Pain response measured with arterial spin labeling [PDF]

open access: yesNMR in Biomedicine, 2013
The majority of functional MRI studies of pain processing in the brain use the blood oxygenation level‐dependent (BOLD) imaging approach. However, the BOLD signal is complex as it depends on simultaneous changes in blood flow, vascular volume and oxygen metabolism.
Nasim, Maleki   +4 more
openaire   +2 more sources

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