<i>Background</i> - Positron emission tomography (PET)/magnetic resonance (MR) imaging may become increasingly important for assessing tumor therapy response. A prerequisite for quantitative PET/MR imaging is reliable and repeatable MR-based attenuation correction (AC).<p> <p><i>Purpose</i> - To investigate the frequency and test–retest reproducibility of artifacts in MR-AC maps in a lung cancer ...

Cellular quiescence is a state of reversible proliferation arrest that is induced by anti-mitogenic signals. The endogenous cardiac glycoside ouabain is a specific ligand of the ubiquitous sodium pump, Na,K-ATPase, also known to regulate cell growth through unknown signalling pathways. To investigate the role of ouabain/Na,K-ATPase in uncontrolled neuroblastoma growth we used xenografts, flow ...

Background Clinical manifestations and outcomes of atherosclerotic disease differ between ethnic groups. In addition, the prevalence of risk factors is substantially different. Primary prevention programs are based on data derived from almost exclusively White people. We investigated how race/ethnic differences modify the associations of established risk factors with atherosclerosis and ...

Abstract Echocardiography plays a critical role in the assessment of cardiac disease. Important differences in echocardiographically derived cardiac chamber dimensions have been previously highlighted in different population groups in adult studies, but this has not been systematically studied in children, whose body size changes throughout childhood. The aim of this study was to review the ...

The implementation of novel cancer immunotherapies in the form of immune checkpoint blockers represents a major advancement in the treatment of cancer, and has renewed enthusiasm for identifying new ways to induce antitumor immune responses in patients. Despite the proven efficacy of neutralizing antibodies that target immune checkpoints in some refractory cancers, many patients do not experience ...

Background: Achilles tendinopathy is a painful disorder, and various treatment options are available. Bipolar radiofrequency microtenotomy (RFM) has shown promising results in treating tendinosis.<p> <p>Purpose/Hypothesis: The purpose was to compare the results between treatment with bipolar RFM and physical therapy (PT) for patients with midportion Achilles tendinopathy. It was hypothesized that ...

Prosjektets utgangspunkt er økningen i bruk av medisinsk røntgenundersøkelser i moderne tid, og da spesielt CT modaliteten. Det er en klar sammenheng mellom økt bruk av ioniserende stråling og økning av kreftinsidens, og nyere studier har vist at særlig CT modaliteten har bidratt stort til økningen. CT undersøkelser kombineres ofte med intravenøse kontrastmidler for å skape bildeserier med høy ...

Bachelor's degree in radiography is a high-tech health education. The subject nuclear medicine has been characterized by traditional and passive teaching methods with demotivated and inactive radiography students. As a tool to promote student activity, motivation, and learning, we developed and applied a new digital online teaching module in the subject nuclear medicine. In this study, we seek answers ...

A specific radioligand for the imaging of cyclic nucleotide phosphodiesterase 2A (PDE2A) via positron emission tomography (PET) would be helpful for research on the physiology and disease-related changes in the expression of this enzyme in the brain. In this report, the radiosynthesis of a novel PDE2A radioligand and the subsequent biological evaluation were described. Our prospective compound ...