Results 91 to 100 of about 114,769,226 (147)
Dosimetric accuracy of Gafchromic EBT2 and EBT3 film for in vivo dosimetry
Radiochromic film has the potential to provide accurate in vivo dosimetry measurements. However, it is not known whether small film pieces can still provide accurate dosimetric results. The use of small film pieces is of particular interest in regions of
Moylan, Rebecca +2 more
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ABSTRACT To map and critically synthesize the methodological approaches used for the CBCT‐based evaluation of maxillary and mandibular impacted canines (ICs), with emphasis on imaging protocols, anatomical variables, and diagnostic frameworks. This scoping review followed PRISMA‐ScR guidelines.
Marcela Gurgel +9 more
wiley +1 more source
Automatic in vivo portal dosimetry of all treatments.
At our institution EPID (electronic portal imaging device) dosimetry is routinely applied to perform in vivo dose verification of all patient treatments with curative intent since January 2008.
Mijnheer, B +10 more
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An efficient radiosynthesis of fluorine‐18 labeled gluconic acid ([18F]FGA) was developed using two readily available materials, 2‐deoxy‐2‐[18F]fluoro‐D‐glucose ([18F]FDG) and glucose oxidase. [18F]FGA is highly specific for bacterial gluconate metabolism mediated by gluconate permease (GntP) and gluconate kinase (GntK), with rapid clearance, low off ...
Sang Hee Lee +7 more
wiley +2 more sources
Photoproducts of the photosensitizer protoporphyrin IX (PpIX) may have diagnostic and therapeutic relevance in photodynamic diagnosis (PDD) and photodynamic therapy (PDT). These photoproducts possess fluorescence and photosensitizing properties and could serve as a complementary dosimetry index alongside photosensitizer photobleaching. The formation of
Sochi J. Ogbonna +2 more
wiley +1 more source
Far‐UVC (200–235 nm) has emerged as a safe and effective indoor disinfection tool, but effects on skin immunomodulation remain unclear. This study demonstrates that 222 nm far‐UVC converts trans‐urocanic acid (UCA) to its biologically active cis isomer at levels comparable with solar radiation. In keratinocytes, far‐UVC alone caused modest increases in
Lizzie Thomas +4 more
wiley +1 more source
The effect of photodynamic therapy in head and neck cancer: A comprehensive review of in vivo models
This review evaluates Photodynamic Therapy (PDT) in in vivo head and neck cancer models. PDT effectively generates ROS, reducing tumor growth, cell proliferation and angiogenesis while enhancing survival and immune responses. However, methodological heterogeneity highlights the urgent need for standardized dosimetric protocols to ensure reproducibility
Bibiana Padilha de Menezes da Silva +5 more
wiley +1 more source
Far‐field bioluminescent immune cell–mediated photodynamic therapy is limited by photon flux
Bioluminescent immune cell‐mediated photodynamic therapy uses tumor‐homing, luciferase‐expressing immune cells as internal light sources to activate photosensitizers in deep‐seated and/or micrometastatic tumors. Using both experiments and computational simulations, we find that this approach delivers insufficient far‐field energy to tumor cells to ...
Ji Tae Park +8 more
wiley +1 more source
ABSTRACT The avian eggshell is a sophisticated, multi‐functional biocomposite and, more importantly, an autonomous life‐support system evolved to safeguard embryonic development across dynamic and hostile environments. Discussing eggshell‐inspired biomaterials beyond simple structural imitation, this review translates these evolutionary survival ...
Zhiqiang Liu +11 more
wiley +1 more source
Quality assurance in total body irradiation by in vivo dosimetry [PDF]
After establishing accuracy requirements for in vivo dosimetry in total body irradiation, the technical and systematical limitations of the commonly used detectors are summarized.
Rittmann, K.L.; Abteilung Strahlentherapie und Spezielle Onkologie, Medizinische Hochschule Hannover, D 30 623 Hannover, Germany
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