Results 71 to 80 of about 82,229 (214)

Borden Type I Sigmoid Sinus Dural Arteriovenous Fistula Presenting as Subarachnoid Hemorrhage from a Feeding Artery Aneurysm of the Anterior Inferior Cerebellar Artery: A Case Report

open access: yes대한영상의학회지, 2020
Dural arteriovenous fistula is an acquired vascular anomaly that can cause various symptoms. Here, we report a rare case of Borden type I sigmoid sinus dural arteriovenous fistula presenting as subarachnoid hemorrhage.
Myojeong Kim, Sung-Tae Park
doaj   +1 more source

Ultra‐high temporal resolution 4D angiography using arterial spin labeling with subspace reconstruction

open access: yesMagnetic Resonance in Medicine, Volume 93, Issue 5, Page 1924-1941, May 2025.
Abstract Purpose To achieve ultra‐high temporal resolution non‐contrast 4D angiography with improved spatiotemporal fidelity. Methods Continuous data acquisition using 3D golden‐angle sampling following an arterial spin labeling preparation allows for flexibly reconstructing 4D dynamic angiograms at arbitrary temporal resolutions. However, k‐space data
Qijia Shen   +5 more
wiley   +1 more source

Carotid ultrasound comparison with angiography. Why do we make mistakes and how to avoid them?

open access: yesЕндоваскулярна нейрорентгенохірургія, 2017
Atherosclerosis is the most common cause of stroke. Non-invasive diagnostic technique can detect and evaluate the severity of the stenosis of the arteries: carotid duplex scanning, magnetic resonance and computed tomography angiography. Selective digital
N.N. Nosenko   +3 more
doaj  

Bilateral occipital arteries of internal carotid origin: report of a case and review of the literature

open access: yesJournal of the Belgian Society of Radiology, 2015
The present report describes a patient with bilateral occipital arteries of internal carotid origin, which is an extremely rare variation, and left vertebral artery ostial stenosis diagnosed by selective catheterization and digital subtraction ...
N Çetin   +4 more
doaj   +1 more source

Subarachnoid Hemorrhage with Negative Baseline Digital Subtraction Angiography: Is Repeat Digital Subtraction Angiography Necessary?

open access: yesJournal of Cerebrovascular and Endovascular Neurosurgery, 2012
Introduction Patients with negative initial digital subtraction angiography (DSA) are at significant risk for re-bleeding, which can lead to severe disability and death.
Dongwoo Yu   +3 more
semanticscholar   +1 more source

Time‐Resolved Imaging of Contrast Kinetics for Canine Hindlimb Angiography: A Comparison With CT Angiography and Noncontrast Magnetic Resonance Angiography

open access: yesVeterinary Radiology &Ultrasound, Volume 66, Issue 3, May 2025.
ABSTRACT This study aimed to evaluate the feasibility of time‐resolved imaging of contrast kinetics (TRICKS) for visualizing hindlimb vasculature in normal dogs and to compare it with CT angiography (CTA) and noncontrast magnetic resonance angiography (MRA).
Hyeonjae Woo   +7 more
wiley   +1 more source

Annotation-Free Cardiac Vessel Segmentation via Knowledge Transfer from Retinal Images [PDF]

open access: yesarXiv, 2019
Segmenting coronary arteries is challenging, as classic unsupervised methods fail to produce satisfactory results and modern supervised learning (deep learning) requires manual annotation which is often time-consuming and can some time be infeasible. To solve this problem, we propose a knowledge transfer based shape-consistent generative adversarial ...
arxiv  

G‐Protein‐Coupled Receptor 84 Aggravates Early Brain Injury via Microglial NLRP3‐ASC Inflammasome After Subarachnoid Hemorrhage

open access: yesBrain and Behavior, Volume 15, Issue 4, April 2025.
GPR84 in microglia is upregulated, activates NLRP3 inflammasomes and promotes IL‐1β secretion, which is revised by GPR84 inhibition. ABSTRACT Background Subarachnoid hemorrhage (SAH) is one of the most devastating hemorrhagic strokes. SAH causes neuroinflammation and leads to both early brain injury and delayed brain injury.
Kun Jiang   +6 more
wiley   +1 more source

Bowhunter's Syndrome Diagnosed with Provocative Digital Subtraction Cerebral Angiography

open access: yesProceedings, 2012
Bowhunter's syndrome, also known as rotational occlusion of the vertebral artery, involves posterior circulation ischemia resulting from dynamic compromise of the dominant vertebral artery.
W. B. Taylor   +3 more
semanticscholar   +1 more source

Endovascular Fenestration in Aortic Type‐A Dissection With Hepatic Malperfusion Syndrome: A Case Report

open access: yesClinical Case Reports, Volume 13, Issue 4, April 2025.
ABSTRACT Acute type‐A aortic dissection with malperfusion syndromes represents challenging cases and should always be treated on an interdisciplinary basis, whereby interventional radiologic therapy can be a successful procedure, especially in patients who are not fit for surgery.
Daniel Weiss   +7 more
wiley   +1 more source

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