Results 31 to 40 of about 9,169,048 (321)

Cardiovascular Magnetic Resonance Deformation Imaging By Feature Tracking For Assessment Of Left And Right Ventricular Structure And Function [PDF]

open access: yes, 2014
The copyright of this thesis rests with the author and no quotation from it or information derived from it may be published without the prior written consent of the authorCardiac magnetic resonance (CMR) imaging is the gold standard imaging technique for
Augustine, Daniel
core   +4 more sources

Surface Scanning for Navigation Using High-Speed Optical Coherence Tomography

open access: yesCurrent Directions in Biomedical Engineering, 2022
Medical interventions are often guided by optical tracking systems and optical coherence tomography has shown promising results for markerless tracking of soft tissue.
Sprenger Johanna   +5 more
doaj   +1 more source

Tissue tracking: applications for brain MRI classification [PDF]

open access: yesSPIE Proceedings, 2007
Bayesian classification methods have been extensively used in a variety of image processing applications, including medical image analysis. The basic procedure is to combine data-driven knowledge in the likelihood terms with clinical knowledge in the prior terms to classify an image into a pre-determined number of classes.
John Melonakos   +2 more
openaire   +3 more sources

Assessment Of Left Ventricular Systolic Function By Speckle Tracking Echocardiography In Young Hypertensive Patients [PDF]

open access: yesAl-Azhar International Medical Journal, 2022
Background: Tissue Speckle Tracking examines speckle aberrations in an echo picture to determine myocardial contractility and relaxation. Reflections, refraction, and dispersion of echo beams generate speckles.
Attia Shokr, Samy Noah, Ahmed Gab Allah
doaj   +1 more source

Visual versus fully automated assessment of left ventricular ejection fraction

open access: yesAvicenna Journal of Medicine, 2018
Introduction: The aim of this study is to compare three different echocardiographic methods commonly used in the assessment of left ventricle (LV) ejection fraction (EF). Methods: All patients underwent full echocardiography including LVEF assessed using
Rami Mahmood Abazid   +10 more
doaj   +1 more source

Ada-Tracker: Soft Tissue Tracking via Inter-Frame and Adaptive-template Matching [PDF]

open access: yesIEEE International Conference on Robotics and Automation
Soft tissue tracking is crucial for computer-assisted interventions. Existing approaches mainly rely on extracting discriminative features from the template and videos to recover corresponding matches.
Jia-Xin Guo   +5 more
semanticscholar   +1 more source

Multinuclear MRI in Drug Discovery

open access: yesMolecules, 2022
The continuous development of magnetic resonance imaging broadens the range of applications to newer areas. Using MRI, we can not only visualize, but also track pharmaceutical substances and labeled cells in both in vivo and in vitro tests.
Dorota Bartusik-Aebisher   +4 more
doaj   +1 more source

A-MFST: adaptive multi-flow sparse tracker for real-time tissue tracking under occlusion [PDF]

open access: yesInternational Journal of Computer Assisted Radiology and Surgery
Tissue tracking is critical for downstream tasks in robot-assisted surgery. The Sparse Efficient Neural Depth and Deformation (SENDD) model has previously demonstrated accurate and real-time sparse point tracking, but struggled with occlusion handling ...
Yu-Xin Chen   +3 more
semanticscholar   +1 more source

A comparison of point-tracking algorithms in ultrasound videos from the upper limb

open access: yesBioMedical Engineering OnLine, 2023
Tracking points in ultrasound (US) videos can be especially useful to characterize tissues in motion. Tracking algorithms that analyze successive video frames, such as variations of Optical Flow and Lucas–Kanade (LK), exploit frame-to-frame temporal ...
Uriel Magana-Salgado   +4 more
doaj   +1 more source

Photoacoustic Imaging to Track Magnetic-manipulated Micro-Robots in Deep Tissue

open access: yesSensors, 2020
The next generation of intelligent robotic systems has been envisioned as micro-scale mobile and externally controllable robots. Visualization of such small size microrobots to track their motion in nontransparent medium such as human tissue remains a ...
Yan Yan   +2 more
doaj   +1 more source

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