Results 31 to 40 of about 92,920 (155)

Topology‐aware anatomical segmentation of the Circle of Willis: HUNet unveils the vascular network

IET Image Processing
This research investigates the Circle of Willis, a critical vascular structure vital for cerebral blood supply. A modified novel dual‐pathway multi‐scale hierarchical upsampling network (HUNet) is presented, tailored explicitly for accurate segmentation ...
Md. Shakib Shahariar Junayed, Kazi Shahriar Sanjid, Md. Tanzim Hossain, M. Monir Uddin, Sheikh Anisul Haque   +4 more
doaj   +1 more source

Rapid development of a mycotic aneurysm of the intracranial artery secondary to Scedosporium apiospermum sinusitis

Medical Mycology Case Reports, 2016
An 85-year-old man complained of a 2-month history of pain on the left side of his face. Brain computed tomography (CT) and magnetic resonance imaging/magnetic resonance angiography did not clearly show any intracranial abnormality and only showed fluid ...
Yoshihiko Ogawa, Masatoshi Sato, Masato Tashiro, Masayuki Miyazaki, Kiyoshi Nagata, Nobuyuki Takahashi, Kei Kasahara, Koichi Izumikawa, Hisakazu Yano, Keiichi Mikasa   +9 more
doaj   +1 more source

A angiografia no diagnóstico da patologia vascular cerebral. Indicações actuais e controvérsias.

Acta Médica Portuguesa, 1993
The role of cerebral angiography in the diagnosis of cerebrovascular disease is currently being questioned due to both the increasing availability of carotid sonography and the recent introduction of Magnetic Resonance Angiography (MRA).
R Manaças, L Cerqueira
doaj   +1 more source

Optimized Hemodynamic Assessment to Predict Stroke Risk in Vertebrobasilar Disease: Analysis From the VERiTAS Study

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2020
Background Atherosclerotic vertebrobasilar disease is a significant etiology of posterior circulation stroke. The prospective observational VERiTAS (Vertebrobasilar Flow Evaluation and Risk of Transient Ischemic Attack and Stroke) study demonstrated that
Alfred P. See, Dilip K. Pandey, Xinjian Du, Linda Rose‐Finnell, Fady T. Charbel, Colin P. Derdeyn, Sepideh Amin‐Hanjani   +6 more
doaj   +1 more source

Small‐Vessel Disease and Intracranial Large Artery Disease in Brain MRI Predict Dementia and Acute Coronary Syndrome, Respectively: A Prospective, Observational Study in the Population at High Vascular Risk

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background We aimed to clarify the predictive value of cerebral small‐vessel disease and intracranial large artery disease (LAD) observed in magnetic resonance imaging of the brain and magnetic resonance angiography on future vascular events and ...
Kazuo Kitagawa, Sono Toi, Megumi Hosoya, Hiroshi Yoshizawa   +3 more
doaj   +1 more source

Visualization of Distal Vessels during Mechanical Thrombectomy using Aortic Cone-beam Computed Tomography

Neurologia Medico-Chirurgica
During mechanical thrombectomy, manipulation under the limited visibility of vessels distal to the occlusion site could result in vessel perforation. Standard imaging techniques such as magnetic resonance imaging and digital subtraction angiography often
Satoshi MIYAMOTO, Wataro TSURUTA, Shuhei EGASHIRA, Jun ISOZAKI, Daiichiro ISHIGAMI   +4 more
doaj   +1 more source

The challenge to detect heart transplant rejection and transplant vasculopathy non-invasively – a pilot study

Journal of Cardiothoracic Surgery, 2009
Background Cardiac allograft rejection and vasculopathy are the main factors limiting long-term survival after heart transplantation. In this pilot study we investigated whether non-invasive methods are beneficial to detect cardiac allograft rejection ...
Helber Uwe, Schroeder Stephen, Aebert Hermann, Burgstahler Christof, Usta Engin, Kopp Andreas F, Ziemer Gerhard   +6 more
doaj   +1 more source

Imaging of acute cerebral ischemia

Zdravniški Vestnik, 2015
Stroke is the third most common cause of death in the developed world and the leading cause of adult disability. The goals of an imaging evaluation for acute stroke when presented with patients with raised clinical suspicion of an acute stroke are to ...
Katarina Šurlan Popovič, Urška Lamot
doaj  

Magnetic resonance angiography: current status and future directions

Journal of Cardiovascular Magnetic Resonance, 2011
With recent improvement in hardware and software techniques, magnetic resonance angiography (MRA) has undergone significant changes in technique and approach.
François Christopher J, Grist Thomas M, Hartung Michael P   +2 more
doaj   +1 more source

Clipping of spinal arteriovenous fistula of the filum terminale under intraoperative angiography guidance

Formosan Journal of Surgery, 2019
Arteriovenous fistula of the filum terminale (AVFFT) is an uncommon disease. We reported a case of this rare condition and we used intraoperative angiography to identify the completeness of fistula obliteration. A 53-year-old man presented with a history
Yun-Ju Lee, Kai-Chun Lin, Cheng-Chia Tsai, Hsin-Yao Lin   +3 more
doaj   +1 more source