Results 171 to 180 of about 252,409 (330)

Liver Stiffness Characterization of OGTLKO Mouse Model of Progressive Liver Fibrosis

open access: yesJournal of Ultrasound in Medicine, EarlyView.
Objectives O‐GlcNAcylation plays a key regulatory role in hepatic physiology, and its disruption leads to fibrosis in liver‐specific OGT knockout mice (OGTLKO), making this model valuable for studying advanced metabolic dysfunction‐associated steatohepatitis (MASH).
Gilles Renault   +9 more
wiley   +1 more source

Pre‐ and Post‐Interventional Hemodynamic Characterization of the Femoropopliteal Artery Using Vector Flow Imaging in Peripheral Arterial Occlusive Disease

open access: yesJournal of Ultrasound in Medicine, EarlyView.
Objectives The femoropopliteal (FP) artery is the most frequently revascularized segment in peripheral artery disease (PAD), followed by the iliac segment. Wall shear stress (WSS) is a key local factor implicated in both atherosclerotic plaque formation and restenosis after angioplasty.
Jan Lukas Prüser   +5 more
wiley   +1 more source

Multiparametric Ultrasound Findings of Testicular Sarcoidosis

open access: yesJournal of Ultrasound in Medicine, EarlyView.
Objectives To characterize the multiparametric ultrasound (MPUS) features of testicular sarcoidosis, incorporating greyscale, color Doppler ultrasound (CDUS), contrast‐enhanced ultrasound (CEUS), and strain elastography (SE), and to assess their collective diagnostic value.
Huahui Liu   +5 more
wiley   +1 more source

Engineering Topological Phases with a Traveling‐Wave Spacetime Modulation

open access: yesLaser &Photonics Reviews, EarlyView.
Time‐varying systems have garnered considerable attention due to their unique potential in manipulating electromagnetic waves. Here, a novel class of topological spacetime crystals with a traveling‐wave modulation is introduced. By manipulating material anisotropy, one can engineer light angular momentum and non‐trivial topological phases characterized
João C. Serra, Mário G. Silveirinha
wiley   +1 more source

Dynamic Retinal Pathology in Glaucoma Progression Revealed by High‐Resolution Functional Imaging in Vivo

open access: yesLaser &Photonics Reviews, EarlyView.
In this work, we investigated the dynamic retinal pathology of glaucoma from onset to late stages through longitudinal in vivo high‐resolution imaging in a silicone oil‐induced ocular hypertension (SOHU) glaucoma mouse model. We developed an optimized adaptive optics two‐photon excitation fluorescence microscopy (AO‐TPEFM) technique for morphological ...
Yiming Fu   +6 more
wiley   +1 more source

Faraday–Ramsey Rotation in Ultrathin Alkali Vapor Cells as an Analogy to Atomic‐Beam Systems

open access: yesLaser &Photonics Reviews, EarlyView.
This work demonstrates that ultrathin rubidium vapor cells can emulate atomic‐beam behavior through geometry‐dependent velocity filtering. Employing a spatially separated pump–probe scheme and Faraday–Ramsey rotation, the study reveals coherent atomic dynamics without buffer gas or anti‐relaxation coatings. This approach offers a compact pathway toward
Mark Dikopoltsev   +4 more
wiley   +1 more source

3D Surface Profiling via Direct End‐to‐End Regression With a Photonic Geometric Sensor

open access: yesLaser &Photonics Reviews, EarlyView.
Measurements of microscale surface patterns are essential for quality control across semiconductor and biomedical industries, yet the development of miniaturized, intelligent systems remains constrained by the complexity and bulkiness of conventional benchtop metrology.
Ziyao Zhang   +13 more
wiley   +1 more source

Optimizing IABP-patient interaction in VA-ECMO via transcranial doppler. [PDF]

open access: yesUltrasound J
Yepes-Velasco AF   +2 more
europepmc   +1 more source

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