Results 91 to 100 of about 157,979 (303)

Trackability Measurement of Coronary Stent in a Coronary Vessel Modell [PDF]

open access: yes, 2008
The EN 14299 standard describes in vitro tests of stent and stent system which are specified more precisely and cover a number of additional parameters.
Dobránszky, János, Szabadíts, Péter
core  

Trainable COSFIRE filters for vessel delineation with application to retinal images [PDF]

open access: yes, 2015
Retinal imaging provides a non-invasive opportunity for the diagnosis of several medical pathologies. The automatic segmentation of the vessel tree is an important pre-processing step which facilitates subsequent automatic processes that contribute to ...
Azzopardi, George, Petkov, Nicolai
core   +1 more source

Dense Nanofibrillar Collagen–Silica Hybrids with High Strength and ECM‐Mimetic Tissue Integration

open access: yesAdvanced Functional Materials, EarlyView.
Dense nanofibrillar collagen–silica hybrids are engineered by synchronizing collagen fibrillogenesis with silica condensation, producing printable scaffolds that unexpectedly approach native extracellular matrix organization and strength. These cell‐free constructs guide endogenous cell‐infiltration, enable localized matrix remodeling, and integrate ...
Norein Norein   +7 more
wiley   +1 more source

Adaptive Neural-Based Finite-Time Trajectory Tracking Control for Underactuated Marine Surface Vessels With Position Error Constraint

open access: yesIEEE Access, 2019
This paper addresses the trajectory tracking control problem of an underactuated marine surface vessel with position error constraint, finite-time convergence requirement, model uncertainties, and external disturbances.
Mingyu Fu, Taiqi Wang, Chenglong Wang
doaj   +1 more source

Magnetic-Visual Sensor Fusion-based Dense 3D Reconstruction and Localization for Endoscopic Capsule Robots [PDF]

open access: yes, 2018
Reliable and real-time 3D reconstruction and localization functionality is a crucial prerequisite for the navigation of actively controlled capsule endoscopic robots as an emerging, minimally invasive diagnostic and therapeutic technology for use in the ...
Almalioglu, Yasin   +5 more
core   +1 more source

Drug‐Free Thrombolysis Mediated by Physically Activated Micro/Nanoparticles

open access: yesAdvanced Functional Materials, EarlyView.
Overview of particle‐mediated thrombolytic effects (thermal, mechanical, and chemical) and their activating physical stimuli (light, ultrasound, and magnetic field) in drug‐free thrombolysis. ABSTRACT Thrombus‐associated disorders rank among the world's leading causes of death, with ischemic heart disease and stroke as the main contributors.
Pierre Sarfati   +2 more
wiley   +1 more source

Virtual Contrast for Coronary Vessels Based on Level Set Generated Subvoxel Accurate Centerlines

open access: yesInternational Journal of Biomedical Imaging, 2006
We present a tool for tracking coronary vessels in MRI scans of the human heart to aid in the screening of heart diseases. The vessels are identified through a single click inside each vessel present in a standard orthogonal view.
Ingmar Bitter   +7 more
doaj   +1 more source

Acoustic tracking of woodhead seabed drifters [PDF]

open access: yes
An investigation was conducted to determine the feasibility of tracking Woodhead seabed drifters that were instrumented with miniature acoustic transmitters having a range in water in excess of 1.0 n.mi.
Lovelady, R. W., Mayhue, R. J.
core   +1 more source

Extraction of Airways with Probabilistic State-space Models and Bayesian Smoothing

open access: yes, 2017
Segmenting tree structures is common in several image processing applications. In medical image analysis, reliable segmentations of airways, vessels, neurons and other tree structures can enable important clinical applications. We present a framework for
C Florin   +11 more
core   +1 more source

Robust semi-automated path extraction for visualising stenosis of the coronary arteries [PDF]

open access: yes, 2008
Computed tomography angiography (CTA) is useful for diagnosing and planning treatment of heart disease. However, contrast agent in surrounding structures (such as the aorta and left ventricle) makes 3-D visualisation of the coronary arteries difficult ...
Achenbach   +43 more
core   +2 more sources

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