Results 51 to 60 of about 75,673 (334)

Quantification of Internal Carotid Artery Flow with Digital Subtraction Angiography: Validation of an Optical Flow Approach with Doppler Ultrasound

open access: yesAmerican Journal of Neuroradiology, 2014
BACKGROUND AND PURPOSE: Digital subtraction angiography is the reference standard technique to evaluate intracranial vascular anatomy and used on the endovascular treatment of vascular diseases. A dedicated optical flow-based algorithm was applied to DSA
V. M. Pereira   +11 more
semanticscholar   +1 more source

Carotid artery disease screening : assessment of criteria [PDF]

open access: yes, 1996
The Department of Radiology at St. Luke’s Hospital has provided a screening service for stroke related disease since April 1991. This consisted of Duplex Ultrasound screening (DUS) for Extracranial Carotid Artery Disease (ECAD) followed by angiography or
Galea Debono, Anthony   +2 more
core  

Real‐Time Guidewire Tip Tracking Using a Siamese Network for Image‐Guided Endovascular Procedures

open access: yesAdvanced Intelligent Systems, EarlyView.
Accurate guidewire navigation is critical for the success of endovascular procedures. This study presents a deep learning‐based framework that enables real‐time localization of the guidewire tip from intraoperative digital subtraction angiography images.
Tianliang Yao   +4 more
wiley   +1 more source

Ultra-high-resolution subtraction CT angiography in the follow-up of treated intracranial aneurysms

open access: yesInsights into Imaging, 2019
In subtraction CT angiography (CTA), a non-contrast CT acquisition is subtracted from a contrast-enhanced CTA acquisition. Subtraction CTA can be applied in the detection, classification, and follow-up of intracranial aneurysms and is advantageous over ...
Frederick J. A. Meijer   +5 more
doaj   +1 more source

Time trends in survival and readmission following coronary artery bypass grafting in Scotland, 1981-96: retrospective observational study [PDF]

open access: yes, 2002
Improvements in coronary revascularisation techniques and an increase in the use of percutaneous interventions1 have led to a rise in the number of coronary artery bypass grafting operations in older patients with more severe cardiac disease and worse ...
Boyd, J.H.   +9 more
core   +2 more sources

Sheep femoral artery occlusion is well tolerated and does not result in ischemia

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Left femoral artery occlusion (yellow arrows) can be seen shortly after the lateral femoral circumflex artery origin, with distal arterial reconstitution. Sheep with femoral artery occlusion showed no change in pain scores nor mobility, thus making them an appropriate model for novel small diameter femoral artery graft studies. Abstract Objective Sheep
Timothy Shiraev   +10 more
wiley   +1 more source

Phase-Based Nonrigid Deformation for Digital Subtraction Angiography

open access: yesIEEE Access, 2019
We present a method for digital subtraction angiography based on phase-based nonrigid deformation with specific consideration for changes between the image pairs.
Soochahn Lee   +4 more
doaj   +1 more source

Video-based education improves the image quality of diagnostic percutaneous cerebral angiography among elderly patients

open access: yesTranslational Neuroscience, 2020
Digital subtraction angiography (DSA) is considered the gold standard for cerebral vasculature observation and is increasingly applied among the elderly population.
Wang Wenbing   +4 more
doaj   +1 more source

Interventional digital subtraction angiography for small bowel gastrointestinal stromal tumors with bleeding.

open access: yesWorld Journal of Gastroenterology, 2014
AIM To retrospectively evaluate the diagnostic efficacy of interventional digital subtraction angiography (DSA) for bleeding small bowel gastrointestinal stromal tumors (GISTs).
Yao-ting Chen   +7 more
semanticscholar   +1 more source

Synchrotron radiation in radiology: radiology techniques based on synchrotron sources [PDF]

open access: yes, 2018
The characteristics of synchrotron X-ray sources—quite different from those of conventional sources—are exploited by several new imaging techniques. These techniques expand the capabilities of conventional radiology and find interesting application in ...
Hwu, Yeukuang   +3 more
core   +1 more source

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