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Medical imaging systems are commonly assessed and optimized by the use of objective measures of image quality (IQ). The performance of the ideal observer (IO) acting on imaging measurements has long been advocated as a figure-of-merit to guide the optimization of imaging systems. For computed imaging systems, the performance of the IO acting on imaging measurements also sets an upper bound on task-performance that no image reconstruction method can transcend.
View Article and Find Full Text PDFLipid-Lowering Efficiency and Safety of Alirocumab 300 mg Using a 2-mL Autoinjector Device in Real-World Practice: The MARS Study.
Drugs Real World Outcomes
January 2025
Department of Cardiology, Angiology and Intensive Care Medicine, German Heart Center of the Charité, Berlin, Germany.
Background: Alirocumab is a fully human monoclonal antibody to proprotein convertase subtilisin kexin type 9 used for the reduction of low-density lipoprotein cholesterol (LDL-C) in high-risk patients not reaching their LDL-C target. Recently, a 2-mL prefilled autoinjector has been developed to support the monthly 300-mg dosing regimen with a single-injection administration.
Methods And Objectives: Monthly application of 300 mg AlirRocumab (Praluent) using the 2-mL SYDNEY Device (MARS) is a non-interventional, open, prospective, multi-center cohort study conducted in Germany between 2021 and 2023 with an observational period of 12 weeks.
2D Surface Optical Reflectance for use in Harsh Reactive Environments.
J Phys Condens Matter
January 2025
Department of Physics, Lund University, BOX 118, Lund, 221 00, SWEDEN.
In recent years, studies of surfaces at more realistic conditions has advanced significantly, leading to an increased understanding of surface dynamics under reaction conditions. The development has mainly been due to the development of new experimental techniques or new experimental approaches. Techniques such as High Pressure Scanning Tunneling/Force Microscopy (HPSTM/HPAFM), Ambient Pressure X-ray Photo emission Spectroscopy (APXPS), Surface X-Ray Diffraction (SXRD), Polarization-Modulation InfraRed Reflection Absorption Spectroscopy (PMIRRAS) and Planar Laser Induced Fluorescence (PLIF) at semi-realistic conditions has been used to study planar model catalysts or industrial materials under operating conditions.
View Article and Find Full Text PDFRegulation of pathologic fibroblast functions in digestive diseases: a role for hypoxia?
Am J Physiol Gastrointest Liver Physiol
January 2025
Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin, Ireland.
The recent uncovering of fibroblast heterogeneity has given great insight into the versatility of the stroma. Among other cellular processes, fibroblasts are now thought to contribute to the coordination of immune responses in a range of chronic inflammatory diseases and cancer. While the pathologic roles of myofibroblasts, inflammatory fibroblasts and cancer associated fibroblasts in disease are reasonably well understood, the mechanisms behind their activation remain to be uncovered.
View Article and Find Full Text PDFValidation of UniverSeg for Interventional Abdominal Angiographic Segmentation.
J Imaging Inform Med
January 2025
Department of Radiation Oncology, Henry Ford Health, Detroit, MI, USA.
Automatic segmentation of angiographic structures can aid in assessing vascular disease. While recent deep learning models promise automation, they lack validation on interventional angiographic data. This study investigates the feasibility of angiographic segmentation using in-context learning with the UniverSeg model, which is a cross-learning segmentation model that lacks inherent angiographic training.
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