Results 31 to 40 of about 6,748,789 (382)

Super-Resolution 1H Magnetic Resonance Spectroscopic Imaging Utilizing Deep Learning

Frontiers in Oncology, 2019
Magnetic resonance spectroscopic imaging (SI) is a unique imaging technique that provides biochemical information from in vivo tissues. The 1H spectra acquired from several spatial regions are quantified to yield metabolite concentrations reflective of ...
Zohaib Iqbal, Dan Nguyen, Gilbert Hangel, Stanislav Motyka, Wolfgang Bogner, Steve Jiang   +5 more
doaj   +1 more source

Multivendor Spectral-Domain Optical Coherence Tomography Dataset, Observer Annotation Performance Evaluation, and Standardized Evaluation Framework for Intraretinal Cystoid Fluid Segmentation

Journal of Ophthalmology, 2016
Development of image analysis and machine learning methods for segmentation of clinically significant pathology in retinal spectral-domain optical coherence tomography (SD-OCT), used in disease detection and prediction, is limited due to the availability
Jing Wu, Ana-Maria Philip, Dominika Podkowinski, Bianca S. Gerendas, Georg Langs, Christian Simader, Sebastian M. Waldstein, Ursula M. Schmidt-Erfurth   +7 more
doaj   +1 more source

Principles of Doppler ultrasound and emerging blood flow imaging [PDF]

Ultrasonography
Doppler ultrasound is one of the oldest modalities for measuring and visualizing blood flow. This review paper explores the principles of Doppler ultrasound and blood flow imaging.
Dong-Guk Paeng, Cheong-Ah Lee, Cynthia Imtiaz   +2 more
doaj   +1 more source

Unambiguous ISAR Imaging Method for Complex Maneuvering Group Targets

Remote Sensing, 2022
In inverse synthetic-aperture radar (ISAR) imaging, it is essential to deal with the Doppler ambiguity of group targets with complex maneuvers in order to avoid the bias of target position towards the actual value.
Fengkai Liu, Darong Huang, Xinrong Guo, Cunqian Feng   +3 more
doaj   +1 more source

Cost-Effectiveness of Laser Doppler Imaging in Burn Care in The Netherlands: A Randomized Controlled Trial

Plastic and Reconstructive Surgery, 2016
Background: In patients with burns, an early accurate diagnosis of burn depth facilitates optimal treatment. Laser Doppler imaging combined with clinical assessment leads to an accurate estimate of burn depth.
M. J. Hop, C. Stekelenburg, J. Hiddingh, H. C. Kuipers, E. Middelkoop, M. Nieuwenhuis, S. Polinder, M. V. van Baar   +7 more
semanticscholar   +1 more source

Volumetric microvascular imaging of human retina using optical coherence tomography with a novel motion contrast technique [PDF]

, 2009
Phase variance-based motion contrast imaging is demonstrated using a spectral domain optical coherence tomography system for the in vivo human retina. This contrast technique spatially identifies locations of motion within the retina primarily associated
Fingler, Jeff, Fraser, Scott E., Schwartz, Dan, Werner, John S., Zawadzki, Robert J.   +4 more
core   +2 more sources

A RPCA-Based ISAR Imaging Method for Micromotion Targets

Sensors, 2020
Micro-Doppler generated by the micromotion of a target contaminates the inverse synthetic aperture radar (ISAR) image heavily. To acquire a clear ISAR image, removing the Micro-Doppler is an indispensable task.
Liangyou Lu, Peng Chen, Lenan Wu
doaj   +1 more source

ULTRASOUND CRITERIA OF EARLY DIAGNOSTICS OF OVARIAN CARCINOMA

Опухоли женской репродуктивной системы, 2015
Introduction. Ovarian cancer (OC) in Russia is ranked the seventh within the structure of general cancer diseases and the third within the gynecological tumors, due to such reasons the problem of early diagnostics is still actual.
L. A. Ashrafyan, N. A. Babaeva, I. B. Antonova, S. V. Ivashina, A. V. Lyustik, O. I. Aleshikova, E. V. Gerfanova, А. А. Dobrenko   +7 more
doaj   +1 more source

Stokes IQUV magnetic Doppler imaging of Ap stars – II. Next generation magnetic Doppler imaging of α2 CVn [PDF]

, 2014
We present updated magnetic field maps of the chemically peculiar B9p star alpha(2) CVn created using a series of time-resolved observations obtained using the high-resolution spectropolarimeters ESPaDOnS and Narval.
J. Silvester, J. Silvester, O. Kochukhov, G. Wade   +3 more
semanticscholar   +1 more source

Early Pregnancy Fetal Cardiac Activity Detection by Superb Micro-Vascular Imaging (cSMI) Comparing with Color Doppler Ultrasound

Pakistan Armed Forces Medical Journal, 2023
Objective: To observe the sonographic advancement of the Doppler technique Superb Microvascular imaging (cSMI) for detecting fetal cardiac activity (FCA) in early pregnancy when not detected on grey scale ultrasound and conventional Doppler.
Riffat Masud, Faisal Khurshid, Ghazal Jameel, Mussarat Ashraf   +3 more
doaj   +1 more source