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Accurate quantification in emission tomography is essential for internal radiopharmaceutical therapy dosimetry. Mean activity concentration measurements in objects with diameters less than 10 times the full width at half maximum of the imaging system’s spatial resolution are significantly affected (>10%) by the partial-volume effect. This study develops a framework for PET and SPECT spatial resolu
A critical challenge in developing anion exchange membrane (AEM) water electrolysis is to design high-performance AEMs with chemical and mechanical stability under harsh alkaline environments. Herein, we report the rational design and synthesis of QP(T-3-Pip) featuring flexibly linked isomeric piperidinium cations via a Friedel-Crafts polyhydroxyalkylation between terphenyl and commercial 3-piperi
ObjectiveSputum cultures can guide antibiotic therapy, particularly in severe pneumonia or when resistant pathogens are suspected. However, data on how prior and ongoing antibiotic exposure affects microbial detection are limited. This study aimed to evaluate this impact, stratified by timing and route of administration.MethodsIn- and outpatients from nine hospitals in Skåne, Sweden, who submitted
Acute dyspnoea is one of the most common presenting symptoms in the emergency department (ED) and has a variety of underlying causes. Calprotectin is a neutrophil activation marker associated with adverse outcomes in acute cardiovascular and infectious diseases. However, the usefulness of calprotectin in the risk stratification of patients with acute dyspnoea is unknown. The objectives were to, in
Phlorotannins, the polyphenols mostly found in brown seaweeds, have attracted high attention from the pharmaceutical industry in recent years due to their antioxidant, antibacterial, and anti-inflammatory activities. These properties make them desirable to be utilized in a wide range of therapeutics. Despite their importance, several challenges make their extractability and identification complex,
The presence of microplastics (MPs) in water represents a current problem for marine life and a future serious issue for human health. This is pushing towards new approaches for the removal of MPs and, hence, their characterization and evaluation, which up to now has represented a limit for tentative procedures for their degradation. Herein, we reported on a new facile, in situ and non-destructive
Since its emergence in late 2019, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has continuously evolved, giving rise to multiple variants that have significantly altered the trajectory of the COVID-19 pandemic. These variants have resulted in multiple waves of the pandemic, exhibiting characteristic mutations in the spike (S) protein that may have affected receptor interaction, tis
Children with hemophilia have a significantly higher risk of intracranial hemorrhage (ICH) compared to the normal population. Prophylaxis reduces the risk of ICH and earlier initiation of prophylaxis may now be feasible, especially in hemophilia A (HA). The aim of the study is to explore the potential for preventing ICH by earlier start of prophylaxis by assessing the natural course of ICH before
In contemporary enterprises, customer satisfaction analysis has become a critical area of concentration. Being able to understand and predict customer satisfaction is becoming more and more important as companies try to develop and launch new products. Leveraging customer data intelligently and employing robust data analytics techniques are essential for meeting this imperative. With this objectiv
Plasma p-tau217 and tau positron emission tomography (PET) are strong prognostic biomarkers in Alzheimer’s disease (AD), but their relative performance in predicting future cognitive decline among cognitively unimpaired (CU) individuals is unclear. In a head-to-head comparison study including nine cohorts and 1,474 individuals, we show that plasma p-tau217 and medial temporal lobe tau-PET signal d
When patients experience peripheral vestibular or certain central disorders causing dizziness or vertigo, this is sometimes associated with experiencing also disrupted spatial orientation, which may be accentuated by exposure to a distorted visual environment. This study explores the impact of sensorimotor factors and sex on spatial orientation in sitting and standing positions. In the Rod-and-Fra
Background: In this study, we further developed an artificial intelligence (AI)-based method for the detection and quantification of tumours in the prostate, lymph nodes and bone in prostate-specific membrane antigen (PSMA)-targeting positron emission tomography with computed tomography (PET–CT) images. Methods: A total of 1064 [18F]PSMA-1007 PET–CT scans were used (approximately twice as many com
Background and purpose — Traditional surgery forarthritis of the distal radioulnar joint (DRUJ), which typicallyinvolves resecting the ulnar head, is being increasingly challengedby newer techniques, such as prosthetic ulnar headreplacement. The aim of our prospective cohort study was toinvestigate the clinical and patient-reported functional results,up to 2 years postoperatively, among patients w
BACKGROUND: Balloon-guide catheters (BGC) have been associated with improved procedural and functional outcomes following endovascular thrombectomy (EVT) in multiple observational studies. Recently the PROTECT-MT trial challenged this benefit, showing worse functional outcomes when using BGCs. This study aims to assess the association between BGC-use and procedural and functional outcomes in a lar
This paper presents a novel convolutional neural network (CNN)-based control chart for detecting localized and subtle speckle shifts (displacements) in the images. To enhance detection accuracy, especially in detecting localized and simultaneous shifts, we design a custom CNN architecture and utilize a training methodology. Moreover, instead of inputting the entire images, we divide them into equa
Objective: To identify and quantify risk factors for incident knee osteoarthritis (KOA) across the lifespan. Methods: This systematic review and meta-analysis identified eligible studies from seven electronic databases and three registries. Longitudinal cohort studies or randomised controlled trials evaluating participants who developed incident symptomatic and/or radiographic KOA were included. T
Background and aims: Heart transplantation is the preferred treatment for selected patients with end stage heart failure. Kidney function often declines after heart transplantation. Sodium-glucose cotransporter 2 inhibitors (SGLT2i) slow the decline in eGFR in different populations. However, the effect of SGLT2i on kidney function in heart transplant recipients is unknown. Methods: The Dapaglifloz
This article examines how the U.S. ‘inclusion-and-difference paradigm’translates to the Swedish context. According to Steven Epstein (2007), thisparadigm combines health equity arguments for racialised minorities andwomen with a biological understanding of racial and gender differences inmedicine. Drawing on interviews with experts, policymakers, and clini-cians involved in international clinical
Direct reprogramming of somatic cells into neurons offers a promising strategy for studying neurological disorders and developing cell-based therapies. This protocol describes the 3D direct reprogramming of human glial progenitor cells into dopaminergic neurons. It includes spheroid formation, lentiviral transduction, neuronal induction using doxycycline, and validation via gene expression and imm
