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| http://dx.doi.org/10.1080/17568919.2024.2409623 | DOI Listing |
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Denoising complex-valued diffusion MR images using a two-step, nonlocal principal component analysis approach.
Magn Reson Med
March 2025
Center for Magnetic Resonance Research, Radiology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA.
Purpose: To propose a two-step, nonlocal principal component analysis (PCA) method and demonstrate its utility for denoising complex diffusion MR images with a few diffusion directions.
Methods: A two-step denoising pipeline was implemented to ensure accurate patch selection even with high noise levels and was coupled with data preprocessing for g-factor normalization and phase stabilization before data denoising with a nonlocal PCA algorithm. At the heart of our proposed pipeline was the use of a data-driven optimal shrinkage algorithm to manipulate the singular values in a way that would optimally estimate the noise-free signal.
Predictors for long-term incomplete nidus obliteration following stereotactic radiosurgery for brain arteriovenous malformations: a systematic review and meta-analysis.
Neurol Neurochir Pol
March 2025
Department of Neurosurgery, Medical University of Gdansk, Gdansk, Poland.
Introduction: This study aimed to identify predictive factors for long-term incomplete nidus obliteration following stereotactic radiosurgery (SRS) for brain arteriovenous malformations (AVMs).
Material And Methods: A systematic search across the PubMed, Web of Science, and Scopus databases identified observational studies reporting such factors. Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed.
Recent Progress in Oxygen Reduction Reaction Toward Hydrogen Peroxide Electrosynthesis and Cooperative Coupling of Anodic Reactions.
Adv Mater
March 2025
Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, P. R. China.
Electrosynthesis of hydrogen peroxide (HO) via two-electron oxygen reduction reaction (2e ORR) is a promising alternative to the anthraquinone oxidation process. To improve the overall energy efficiency and economic viability of this catalytic process, one pathway is to develop advanced catalysts to decrease the overpotential at the cathode, and the other is to couple 2e ORR with certain anodic reactions to decrease the full cell voltage while producing valuable chemicals on both electrodes. The catalytic performance of a 2e ORR catalyst depends not only on the material itself but also on the environmental factors.
View Article and Find Full Text PDFPattern, severity, and treatment outcomes in acute poisoning patients admitted to the Saint Peter Specialized Hospital Toxicology Center in Addis Ababa, Ethiopia, 2023: a retrospective study.
Front Toxicol
February 2025
Department of Anesthesia, School of Medicine, College of Health Sciences, Debre Tabor University, Debre Tabor, Ethiopia.
Background: Poisoning is a global public health problem that has more unfavorable outcomes in developing countries. This study aimed to assess treatment outcomes and associated factors among poisoned patients treated at Saint Peter Specialized Hospital Toxicology Center.
Methods: An institutional-based retrospective cohort study was employed by reviewing medical chart records of acutely poisoned patients who had been admitted at St.
From the Masterclasses in Dermatology 2024 Meeting: Updates in Psoriasis Treatments.
J Clin Aesthet Dermatol
February 2025
Ms. Romanelli and Dr. Gottlieb are with the Department of Dermatology and Department of Medicine, Division of Rheumatology at Icahn School of Medicine at Mount Sinai in New York, New York.
Psoriasis (PsO) is an immune-mediated, chronic inflammatory skin disease that significantly impairs quality of life. Its treatment landscape is rapidly evolving, providing better disease control. Here, we highlight updates in biologics, obtaining coverage for biologics under Medicare, the PsO-to-psoriatic arthritis (PsA) transition, and orally administered drugs, as presented at the 2024 Masterclass in Dermatology in Puerto Rico.
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