Results 41 to 50 of about 20,605,475 (335)

High frame rate photoacoustic imaging using clinical ultrasound system

open access: yes, 2016
Photoacoustic tomography (PAT) is a potential hybrid imaging modality which is gaining attention in the field of medical imaging. Typically a Q-switched Nd:YAG laser is used to excite the tissue and generate photoacoustic signals.
Manojit Pramanik   +3 more
core   +1 more source

Plaque biomarkers from high-frame rate vector flow imaging and shear wave elastography in mild carotid stenosis [PDF]

open access: yesUltrasonography
Purpose This study aimed to investigate the association of carotid plaque biomechanical parameters and elasticity—measured using high-frame rate vector flow imaging (VFI) and shear wave elastography (SWE)—with the occurrence of ipsilateral ischemic ...
Man Zhao   +6 more
doaj   +1 more source

Improvement of Performance Degradation in Synthetic Aperture Extension of Enhanced Axial Resolution Ultrasound Imaging Based on Frequency Sweep

open access: yesSensors, 2019
We are studying a method based on the carrier frequency sweep for axial high resolution ultrasonic imaging to provide the range resolution that corresponds to the carrier wavelength.
Jing Zhu, Norio Tagawa
doaj   +1 more source

Quantifying cilia beat frequency using high‐speed video microscopy: Assessing frame rate requirements when imaging different ciliated tissues

open access: yesPhysiological Reports, 2022
Motile cilia are found in numerous locations throughout our body and play a critical role in various physiological processes. The most commonly used method to assess cilia motility is to quantify cilia beat frequency (CBF) via video microscopy.
Luke Scopulovic   +3 more
doaj   +1 more source

Light field microscopy in biological imaging

open access: yesJournal of Innovative Optical Health Sciences, 2023
Light field microscopy (LFM), featured for high three-dimensional imaging speed and low phototoxicity, has emerged as a technique of choice for instantaneous volumetric imaging.
Chengqiang Yi   +3 more
doaj   +1 more source

Interplay of cardiac remodelling and myocardial stiffness in hypertensive heart disease: a shear wave imaging study using high-frame rate echocardiography.

open access: yesEuropean Heart Journal-Cardiovascular Imaging, 2020
AIMS To determine myocardial stiffness by means of measuring the velocity of naturally occurring myocardial shear waves (SWs) at mitral valve closure (MVC) and investigate their changes with myocardial remodelling in patients with hypertensive heart ...
M. Cvijić   +10 more
semanticscholar   +1 more source

Miniaturization Design of High-Integration Unmanned Aerial Vehicle-Borne Video Synthetic Aperture Radar Real-Time Imaging Processing Component

open access: yesRemote Sensing
The unmanned aerial vehicle (UAV)-borne video synthetic aperture radar (SAR) possesses the characteristic of having high-continuous-frame-rate imaging, which is conducive to the real-time monitoring of ground-moving targets.
Tao Yang   +6 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Detection of mechanical waves in the left ventricle using high frame rate imaging

open access: yes, 2020
Echocardiography is a key imaging modality to assess cardiac anatomy and function. In the past decade, high frame rate ultrasound imaging has emerged, and has allowed for studies of rapid phenomena that occur in the heart.
Kvåle, Kaja F.
core   +1 more source

High-definition whole-body vasculature imaging of live zebrafish larva obtained in a single FOV at frame rate of 500 Hz.mp4

open access: yes, 2022
This video presents high-definition whole-body vasculature imaging of live zebrafish larva obtained in a single FOV at frame rate of 500 ...
Kevin Emmerich (13118583)   +5 more
core   +1 more source

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