Results 51 to 60 of about 3,633,330 (258)

Frame rate improvement in coherent plane-wave compounding using null subtraction imaging

AIP Advances
Coherent plane-wave compounding (CPWC) has attracted significant attention in preclinical research and clinical diagnosis. However, a trade-off exists in CPWC between the image quality and frame rate.
Yijun Xu, Boyi Li, Jianwen Luo, Xin Liu, Dean Ta   +4 more
doaj   +1 more source

Fourier Transform Holography: A Lensless Imaging Technique, Its Principles and Applications

Photonics, 2023
Fourier transform holography (FTH) is a lensless imaging technique where the wave scattered by an object is superimposed with the wave scattered by a reference source positioned in the same plane.
Sara Mustafi, Tatiana Latychevskaia
doaj   +1 more source

Neurovascular Contacts in the Pathophysiology of Neuralgic Amyotrophy: An Observational Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neuralgic amyotrophy (NA) is a prevalent, monophasic, multifocal immune‐mediated neuropathy. A distinctive characteristic of the disease is the occurrence of nerve or fascicle constrictions and torsions (NA‐associated focal nerve lesions, NAFL). The pathophysiology underlying this phenomenon remains to be fully elucidated.
Johannes Fabian Holle, Andreas Leha, Volker Limmroth, Wolfram Windisch, Maximilian Zimmermann   +4 more
wiley   +1 more source

White Matter Microstructural Abnormalities in Neonatal Onset Genetic Epilepsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Recent evidence indicates that epilepsy is associated with abnormal white matter. If seizures alter white matter, then the impact upon network function, epileptogenesis, and cognition could be pronounced in neonates undergoing rapid developmental myelination. Neonates with epilepsy due to nonstructural genetic causes provide a unique
Amanda G. Sandoval Karamian, Tianjia Zhu, Hao Huang, Shavonne L. Massey, Mark P. Fitzgerald, Darshana Parikh, Arastoo Vossough, Ingo Helbig, Nicholas S. Abend   +8 more
wiley   +1 more source

Laboratory implementation of edge illumination X-ray phase-contrast imaging with energy-resolved detectors [PDF]

, 2015
Edge illumination (EI) X-ray phase-contrast imaging (XPCI) has potential for applications in different fields of research, including materials science, non-destructive industrial testing, small-animal imaging, and medical imaging.
A. Olivo, De Ruvo, L, Endrizzi, M., Kallon, G, SPANDRE, GLORIA, G. Spandre, Vincenzi, A, Kallon, G., A. Brez, Hagen, C. K., Olivo, A, L. De Ruvo, Basta, D, P. C. Diemoz, F. A. Vittoria, Hagen, CK, Olivo, A., C. K. Hagen, Spandre, G, Brez, A., M. Marenzana, Brez, A, DELOGU, PASQUALE, Vittoria, F. A., Marenzana, M., Bellazzini, R, Diemoz, P. C., Vincenzi, A., BELLAZZINI, RONALDO, A. Vincenzi, D. Basta, M. Endrizzi, G. Kallon, R. Bellazzini, Diemoz, PC, Vittoria, FA, Delogu, P, Endrizzi, M, Marenzana, M, De Ruvo, L., Basta, D., P. Delogu   +41 more
core   +1 more source

Holographic Imaging Using an Imperfect Plane Wave Illumination With a Background Phase

Frontiers in Physics, 2022
Aberrations in the optical components and misalignments in the optical system cause a background phase in the coherent illumination. To reconstruct the object phase, the background phase illuminating the object must be measured and subtracted.
Rujia Li, Feng Yang, Liangcai Cao
doaj   +1 more source

Subclinical Optic Nerve Involvement in Radiologically Isolated Syndrome: Multimodal Detection and Diagnostic Impact

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives We aimed to determine the frequency of subclinical optic nerve (ON) lesions using MRI, optical coherence tomography (OCT), and visual evoked potentials (VEP) in radiologically isolated syndrome (RIS), and to assess their diagnostic and prognostic significance.
Christine Lebrun‐Frenay, Cassandre Landes‐Château, Lydiane Mondot, Mikael Cohen, Margherita Popolo, Jérôme de Seze, Bertrand Bourre, Françoise Durand‐Dubief, Olivier Casez, Orhun H. Kantarci, Aksel Siva, Stephanie Baillif, Darin T. Okuda, Letizia Leocani   +13 more
wiley   +1 more source

Free energy and phase transition of the matrix model on a plane wave [PDF]

, 2005
This is the peer reviewed version of the following article: Free energy and phase transition of the matrix model on a plane-wave, which has been published in final form at 10.1103/PhysRevD.71.065016.
Ramadanovic, B, Hadizadeh, S, Semenoff, GW, Young, D   +3 more
core   +1 more source

Plane wave echo particle image velocimetry [PDF]

Proceedings of Meetings on Acoustics, 2013
This paper deals with the application of topological imaging to ultrasonic echo-particle image velocimetry (Echo-PIV). Echo-PIV is a recent alternative to optical PIV for measuring the instantaneous velocity field of a fluid flow previously seeded with small particles.
Samuel Rodriguez, Xavier Jacob, Vincent Gibiat   +2 more
openaire   +1 more source

Cognitive and Neuroimaging Divergence Between Juvenile and Adult FUS Amyotrophic Lateral Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disorder characterized by progressive motor neuron degeneration. Fused in sarcoma (FUS)‐associated juvenile ALS (jALS) represents a distinct and aggressive subgroup with rapid deterioration and poor prognosis.
Alexandra V. Jürs, Marcel Naumann, Annaliis Lehto, Hanna Schön, Jens Kurth, Johannes Prudlo, Andreas Hermann, Elisabeth Kasper   +7 more
wiley   +1 more source