Results 61 to 70 of about 157,979 (303)

The correlation between speckle tracking echocardiography and coronary artery disease in patients with suspected stable angina pectoris

open access: yesIndian Heart Journal, 2018
Background: To examine the value of speckle tracking echocardiography to detect the presence, extent and severity of coronary artery affection in patients with suspected stable angina pectoris. Methods: Two hundred candidates with suspected stable angina
Shaimaa Moustafa   +3 more
doaj   +1 more source

Maritime Vessel Tracking

open access: yes
The Automatic Identification System (AIS) provides time stamped vessel positions and kinematic reports that enable maritime authorities to monitor traffic. We consider the problem of relabeling AIS trajectories when vessel identifiers are missing, focusing on a challenging nationwide setting in which tracks are heavily downsampled and span diverse ...
Scott, John Mahlon, Huang, Hsin-Hsiung
openaire   +2 more sources

Bi-Plane X-ray coronary 3D reconstruction for flow velocity assessment [PDF]

open access: yes, 2009
In coronary angiography the coronary blood flow velocity can be assessed by tracking a contrast agent in an image sequence. The contrast agent flow velocity is used to estimate the functional behavior of the coronary arteries using TIMI frame count (TFC).
Brinke, G.A. ten   +2 more
core   +1 more source

Extracting Tree-structures in CT data by Tracking Multiple Statistically Ranked Hypotheses

open access: yes, 2019
In this work, we adapt a method based on multiple hypothesis tracking (MHT) that has been shown to give state-of-the-art vessel segmentation results in interactive settings, for the purpose of extracting trees.
de Bruijne, Marleen   +3 more
core   +1 more source

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz   +3 more
wiley   +1 more source

Cooperative Adaptive Tracking Control Based on Quantized States for Multiple Surface Vessels

open access: yesIEEE Access
The cooperative adaptive tracking control based on full states quantization is investigated in this paper for multiple uncertain surface vessel systems.
Qinxue Xu, Likang Feng, Liqiang Yao
doaj   +1 more source

Finite-Time Trajectory Tracking Fault-Tolerant Control for Surface Vessel Based on Time-Varying Sliding Mode

open access: yesIEEE Access, 2018
This paper addresses the problem of trajectory tracking control of a surface vessel subject to parametric uncertainties, external disturbances, and thruster faults.
Mingyu Fu, Mingyang Li, Wenbo Xie
doaj   +1 more source

3D Coronary Vessel Tracking in X-Ray Projections [PDF]

open access: yes, 2017
Fusing pre-operative CT angiography with per-operative an-giographic and fluoroscopic images is considered by physicians as a potentially useful tool for improved guidance. To be adopted, this tool requires the development of tracking methods adapted to the deformations of the arteries caused by the cardiac motion.
Poulain, Emmanuelle   +2 more
openaire   +1 more source

UV Exposed Optical Fibers with Frequency Domain Reflectometry for Device Tracking in Intra-Arterial Procedures

open access: yes, 2017
Shape tracking of medical devices using strain sensing properties in optical fibers has seen increased attention in recent years. In this paper, we propose a novel guidance system for intra-arterial procedures using a distributed strain sensing device ...
B Fuerst   +7 more
core   +1 more source

Genetic programming for the automatic design of controllers for a surface ship [PDF]

open access: yes, 2008
In this paper, the implementation of genetic programming (GP) to design a contoller structure is assessed. GP is used to evolve control strategies that, given the current and desired state of the propulsion and heading dynamics of a supply ship as ...
D.J. Murray-Smith   +3 more
core   +1 more source

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