Results 111 to 120 of about 321,365 (400)

An alternative surgical approach reduces variability following filament induction of experimental stroke in mice

open access: yesDisease Models & Mechanisms, 2017
Animal models are essential for understanding the pathology of stroke and investigating potential treatments. However, in vivo stroke models are associated, particularly in mice, with high variability in lesion volume.
Melissa Trotman-Lucas   +4 more
doaj   +1 more source

Segmentation of carotid vessel wall using U-Net and segmentation average network [PDF]

open access: yesarXiv, 2020
Segmentation of carotid vessel wall is required in vessel wall volume (VWV) and local vessel-wall-plus-plaque thickness (VWT) quantification of the carotid artery. Manual segmentation of the vessel wall is time-consuming and prone to interobserver variability. In this paper, we proposed a convolution neural network to segment the common carotid artery (
arxiv  

Adjusting for bias introduced by instrumental variable estimation in the Cox Proportional Hazards Model [PDF]

open access: yesBiostatistics, 2017, 2017
Instrumental variable (IV) methods are widely used for estimating average treatment effects in the presence of unmeasured confounders. However, the capability of existing IV procedures, and most notably the two-stage residual inclusion (2SRI) procedure recommended for use in nonlinear contexts, to account for unmeasured confounders in the Cox ...
arxiv   +1 more source

Anomalous external carotid-internal carotid artery anastomosis diagnosed by computed tomography angiography: a case report

open access: yesRadiology Case Reports, 2020
An anomalous anastomosis between the external and internal carotid arteries forming an arterial ring at the level of the cervical internal carotid artery is an extremely rare variant, and its embryological origin remains unclear.
Byung Hoon Lee, MD
doaj  

Parallel Network with Channel Attention and Post-Processing for Carotid Arteries Vulnerable Plaque Segmentation in Ultrasound Images [PDF]

open access: yesarXiv, 2022
Carotid arteries vulnerable plaques are a crucial factor in the screening of atherosclerosis by ultrasound technique. However, the plaques are contaminated by various noises such as artifact, speckle noise, and manual segmentation may be time-consuming.
arxiv  

Unusual branching pattern of external carotid artery in the left carotid triangle [PDF]

open access: yes, 2017
During the routine dissection of the neck for the first MBBS students, we have found the abnormal branching of the external carotid artery in the carotid triangle.
., Gangadhara   +3 more
core   +1 more source

3D‐cultured BMSC exosomes improve cerebral ischemia/reperfusion injury‐induced neuronal apoptosis by regulating the microglia polarization

open access: yesBMEMat, EarlyView.
The study reveals that microglial activation significantly contributes to neuroinflammation following cerebral ischemia‐reperfusion injury. It demonstrates that utilizing GelMA hydrogel for three‐dimensional culture of bone marrow‐derived mesenchymal stem cells (BMSCs) enhances the efficacy of BMSC‐derived exosomes in regulating microglial polarization
Yuming Li   +13 more
wiley   +1 more source

Self‐gated, dynamic contrast‐enhanced magnetic resonance imaging with compressed‐sensing reconstruction for evaluating endothelial permeability in the aortic root of atherosclerotic mice

open access: yesNMR in Biomedicine, Volume 36, Issue 1, January 2023., 2023
Atherosclerotic plaques at high risk of causing cardiovascular events are characterized by a prominent inflammatory infiltrate accompanied by the presence of an extensive network of leaky microvessels. In this paper, we present a dynamic contrast‐enhanced magnetic resonance imaging (DCE‐MRI) acquisition and compressed sensing reconstruction to aortic ...
Claudia Calcagno   +14 more
wiley   +1 more source

Motion Magnification in Robotic Sonography: Enabling Pulsation-Aware Artery Segmentation [PDF]

open access: yesarXiv, 2023
Ultrasound (US) imaging is widely used for diagnosing and monitoring arterial diseases, mainly due to the advantages of being non-invasive, radiation-free, and real-time. In order to provide additional information to assist clinicians in diagnosis, the tubular structures are often segmented from US images.
arxiv  

Anomolous Origin of the Branches from the Common Carotid Artery [PDF]

open access: yes, 1995
The following result is found out by observing the Japanese one right internal carotid artery which is very thin and form the intero-occipital trunk. The common carotid artery are covered by the stylohyoid muscle and are divided into two branches ; the ...
加納 隆, 恩田 千爾, 舟津 聡
core   +1 more source

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