Results 11 to 20 of about 20,605,475 (335)
Diagnostics, 2023 Objective: This study seeks to evaluate the value of the high-frame-rate vector flow imaging technique in assessing the hemodynamic changes of carotid atherosclerotic stenosis in aging people (>60 years old).
Yi-Jie Qiu +9 more
doaj +2 more sources
High Frame Rate ViSAR Based on OAM Beams: Imaging Model and Imaging Algorithm
Remote SensingHigh frame rate imaging of synthetic aperture radar (SAR), also known as video SAR (ViSAR), has attracted extensive research in recent years. When ViSAR system parameters are fixed, there is a technical trade-off between high frame rates and high ...
Xiaopeng Li +6 more
doaj +2 more sources
ASAP: Super-Contrast Vasculature Imaging Using Coherence Analysis and High Frame-Rate Contrast Enhanced Ultrasound [PDF]
IEEE Transactions on Medical Imaging, 2018 The very high frame rate afforded by ultrafast ultrasound, combined with microbubble contrast agents, opens new opportunities for imaging tissue microvasculature. However, new imaging paradigms are required to obtain superior image quality from the large
A. Stanziola +4 more
semanticscholar +2 more sources
SensorsIn this study, we designed an ultrasound transmit–receive sequence to achieve high-frame-rate vascular wall velocity estimation and high-contrast B-mode imaging.
Hitoshi Hirano +5 more
doaj +2 more sources
PAAQ: Paired Alternating AcQuisitions for virtual high frame rate multichannel cardiac fluorescence microscopy. [PDF]
, 2023 In vivo fluorescence microscopy is a powerful tool to image the beating heart in its early development stages. A high acquisition frame rate is necessary to study its fast contractions, but the limited fluorescence intensity requires sensitive cameras ...
Mercader, Nadia +3 more
core +2 more sources
Translating High-Frame-Rate Imaging into Clinical Practice: Where Do We Stand?
Romanian Journal of Cardiology, 2023 Continuous developments in cardiovascular imaging, software, and hardware have led to technological advancements that open new ways for assessing myocardial mechanics, hemodynamics, and function. The technical shift from clinical ultrasound machines that
Popescu Aniela +2 more
doaj +1 more source
Frontiers in Cardiovascular Medicine, 2021 Objective: To investigate the value of high-frame rate vector flow imaging technique (V flow) in evaluating the hemodynamic changes of carotid stenosis caused by atherosclerotic plaques.
Yi-Jie Qiu +10 more
semanticscholar +1 more source
Multiplexed structured imaging of laser induced fluorescence at 10 GHz rate
AIP Advances, 2023 The frame rate of conventional high-speed imaging devices is limited by exposure time and signal read-out time. Structured imaging is able to push the frame rate beyond the limit of the imaging device.
Zichen He +4 more
doaj +1 more source
Compressive Coded Rotating Mirror Camera for High-Speed Imaging
Photonics, 2021 We develop a novel compressive coded rotating mirror (CCRM) camera to capture events at high frame rates in passive mode with a compact instrument design at a fraction of the cost compared to other high-speed imaging cameras. Operation of the CCRM camera
Amir Matin, Xu Wang
doaj +1 more source
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2021 Volumetric ultrasound imaging of blood flow with microbubbles enables a more complete visualization of the microvasculature. Sparse arrays are ideal candidates to perform volumetric imaging at reduced manufacturing complexity and cable count.
Luxi Wei +11 more
semanticscholar +1 more source