Results 231 to 240 of about 52,858 (287)

Added Value of Rotational Mechanics to Longitudinal Indices in the Risk Stratification of Patients With Left Ventricular Hypertrophy. [PDF]

Echocardiography
Geraldo J, Gil C, Queipo A, García-Martín G, Galiana E, Hidalgo A, Gramage P, Martinez-Navarro H, Lowenstein J, Roldán I, Mora V.   +10 more
europepmc   +1 more source

Texture preference task: a rapid and training-independent behavioural assay to evaluate somatosensory perception in freely moving mice. [PDF]

MethodsX
Royea J, Djerourou I, Sanliturk B, Albert C, Vanni MP.   +4 more
europepmc   +1 more source

Development of a laser speckle contrast imaging analysis pipeline reveals a triphasic retinal blood flow waveform. [PDF]

Biomed Opt Express
Tate AJ, Mouradian GC, Lipinski DM.
europepmc   +1 more source

A false-positive Focused Assessment with Sonography in Trauma (FAST) in a trauma patient. [PDF]

Clin Exp Emerg Med
Taylor L, Milgrim F, Riscinti M, Gottlieb M.   +3 more
europepmc   +1 more source

Resolution and Speckle Reduction in Cardiac Imaging [PDF]

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2021
Cardiac imaging depends on clear visualization of several different structural and functional components to determine left ventricular and overall cardiac health. Ultrasound imaging is confounded by the characteristic speckle texture resulting from subwavelength scatterers in tissues, which is similar to a multiplicative noise on underlying tissue ...
Nick Bottenus, Melissa LeFevre, Jayne Cleve, Anna Lisa Crowley, Gregg Trahey   +4 more
openaire   +3 more sources

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Speckle reduction in holographic displays

Ultra-High-Definition Imaging Systems IV, 2021
Speckles, resultant to the randomized interference of coherent fields, are inherent in holographic displays. Speckle in holographic displays leads to low signal-to-ratio in the reconstructed holographic images and causes potential eye-safety issues. In this invited paper, recent works on speckle reduction in holographic displays either by modulating ...
Byoungho Lee, Dongyeon Kim, Byounghyo Lee, Dukho Lee, Seungjae Lee   +4 more
openaire   +1 more source

Echocardiographic speckle reduction comparison

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2011
In this paper, a detailed description and comparison of speckle reduction of medical ultrasound, and in particular echocardiography, is presented. Fifteen speckle reduction filters are described in a detailed fashion to facilitate implementation for research and evaluation.
Seán, Finn, Martin, Glavin, Edward, Jones   +2 more
openaire   +2 more sources

Speckle Reduction Processing

SPIE Proceedings, 1987
Speckle is believed to be a significant degrading factor in ultrasonic images, and likely impairs the detectability of low contrast tumors and clinical scans. One method of reducing speckle, termed frequency diversity processing, uses multiple, narrow-band filters applied to the received RF signal.
Steve M. Gehlbach, F. G. Sommer
openaire   +1 more source