Results 41 to 50 of about 12,274,852 (362)

Endocarditis and molecular imaging [PDF]

open access: yesJournal of Nuclear Cardiology, 2014
Clinically managing acute endocarditis, an infection of the heart valves with a mortality rate of up to 47%, remains highly challenging and frequently unsuccessful (1, 2). The most common pathogen behind acute endocarditis is Staphylococcus aureus, followed by Streptococcus species (2, 3). Unmet clinical needs in treating acute endocarditis include: (i)
Peter, Panizzi   +2 more
openaire   +2 more sources

The Long Noncoding RNA MEG3 Retains Epithelial-Mesenchymal Transition by Sponging miR-146b-5p to Regulate SLFN5 Expression in Breast Cancer Cells

open access: yesJournal of Immunology Research, 2022
More and more studies have shown that long noncoding RNAs (lncRNAs) play essential roles in malignant tumors. The lncRNA MEG3 serves as a crucial molecule in breast cancer development, but the specific molecular mechanism needs to be further explored. We
Xuefeng Gu   +7 more
doaj   +1 more source

Imaging correlates of molecular signatures in oligodendrogliomas. [PDF]

open access: yes, 2004
Molecular subsets of oligodendroglioma behave in biologically distinct ways. Their locations in the brain, rates of growth, and responses to therapy differ with their genotypes. Retrospectively, we inquired whether allelic loss of chromosomal arms 1p and
Kachur, Edward   +10 more
core   +1 more source

In Vivo Molecular Optical Coherence Tomography of Lymphatic Vessel Endothelial Hyaluronan Receptors

open access: yesScientific Reports, 2017
Optical Coherence Tomography (OCT) imaging of living subjects offers increased depth of penetration while maintaining high spatial resolution when compared to other optical microscopy techniques.
Peng Si   +7 more
doaj   +1 more source

Molecular Imaging of Hypoxia [PDF]

open access: yesJournal of Nuclear Medicine, 2008
Hypoxia, a condition of insufficient O2 to support metabolism, occurs when the vascular supply is interrupted, as in stroke or myocardial infarction, or when a tumor outgrows its vascular supply. When otherwise healthy tissues lose their O2 supply acutely, the cells usually die, whereas when cells gradually become hypoxic, they adapt by up-regulating ...
Kenneth A, Krohn   +2 more
openaire   +2 more sources

Molecular Ultrasound Imaging [PDF]

open access: yesNanomaterials, 2020
Contrast-enhanced ultrasound (CEUS) imaging is a valuable tool for preclinical and clinical diagnostics. The most frequently used ultrasound contrast agents are microbubbles. Besides them, novel nano-sized materials are under investigation, which are briefly discussed in this chapter.
Jasmin, Baier   +2 more
openaire   +6 more sources

An alternative methodology for the determination of the radiochemical purity of 11C-methionine

open access: yesEJNMMI Radiopharmacy and Chemistry, 2018
Background [11C]Methionine ([11C]MET) acts as an oncological radiopharmaceutical for measuring increased protein synthesis in brain tumours while having low uptake in normal brain an.
Javier Giglio   +5 more
doaj   +1 more source

Comparison of two elastic motion correction approaches for whole-body PET/CT: motion deblurring vs gate-to-gate motion correction

open access: yesEJNMMI Physics, 2020
Background Respiratory motion in PET/CT leads to well-known image degrading effects commonly compensated using elastic motion correction approaches. Gate-to-gate motion correction techniques are promising tools for improving clinical PET data but suffer ...
Stefanie Pösse   +6 more
doaj   +1 more source

Molecular Imaging of the Breast

open access: yesAmerican Journal of Roentgenology, 2009
Contrast-enhanced magnetic resonance imaging (MRI), MR spectroscopy, and nuclear medicine sestamibi imaging using technetium-99m methoxyisobutyl isonitrile or positron emission tomography (PET) techniques provide information beyond that of structural imaging by displaying tumor neoangiogenesis, tumor metabolites, increased numbers of tumor cellular ...
Birdwell, Robyn L.   +2 more
openaire   +7 more sources

Advances in Analysis of Biodistribution of Exosomes by Molecular Imaging

open access: yesInternational Journal of Molecular Sciences, 2020
Exosomes are nano-sized membranous vesicles produced by nearly all types of cells. Since exosome-like vesicles are produced in an evolutionarily conserved manner for information and function transfer from the originating cells to recipient cells, an ...
Y. Yi   +7 more
semanticscholar   +1 more source

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