Results 71 to 80 of about 15,871 (231)

Desenvolvimento de um dosímetro in vivo a MOSFET para aplicações em radioterapia [PDF]

open access: yes, 2013
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2013.Na radioterapia (teleterapia), a diferença entre a dose prescrita e a dose recebida pelo paciente deve ...
Siebel, Osmar Franca
core  

Monte-Carlo Based Numerical Dosimetry in Reverberation Chamber Exposure Systems Employed for in-Vivo Rodent Bioassays

open access: yesIEEE Access, 2023
A Monte-Carlo based computational approach for the statistical characterization of the whole-body specific absorption rate (wbSAR) variability in large cohorts of rodents exposed to radio-frequency (RF) energy in reverberation chambers (RCs) is applied ...
Valerio De Santis   +4 more
doaj   +1 more source

Ultra‐Radiostable Covalent Conformationally Interlocked Networks Enabling a Universal Radiometal‐Labeling Platform for Cancer Radioembolization

open access: yesAdvanced Science, EarlyView.
Conjugated poly(imide dioxime)‐based microspheres establish a radiometal coordination‐driven conformational interlocked network with ultra‐high radiostability. This platform enables low‐temperature, multi‐radionuclide labeling for SPECT/PET/MRI imaging and radionuclide therapy. Mechanistic insights from EXAFS and DFT reveal enhanced stability, while in
Xiao Xu   +10 more
wiley   +1 more source

Dosimetry for 6-[18F]Fluoro-L-DOPA in humans based on in vivo microPET scans and ex vivo tissue distribution in mice [PDF]

open access: yes, 2012
Radiation dosimetry of new radiopharmaceuticals generally starts with studies in small animals such as mice and rats. The traditional technique has long been ex vivo measurement of the biodistribution over time using harvested organs at different times ...
Lemaire, Christian   +8 more
core  

Nanotoxicology: in Vitro–in Vivo Dosimetry

open access: yesEnvironmental Health Perspectives, 2012
Gangwal et al. (2011) addressed an important topic for nanotoxicology about assessing the toxicity of inhaled nanomaterials by recommending relevant concentrations for in vitro toxicity testing. Their efforts to select in vitro concentrations based on reported occupational exposure levels of inhaled nanomaterials are, indeed, laudable. Their underlying
openaire   +2 more sources

Radionuclide therapy: current status and prospects for internal dosimetry in individualized therapeutic planning

open access: yesClinics
The efficacy and toxicity of radionuclide therapy are believed to be directly related to the radiation doses received by target tissues; however, nuclear medicine therapy continues to be based primarily on the administration of empirical activities to ...
Marcelo Tatit Sapienza   +1 more
doaj   +1 more source

Quality assurance in total body irradiation by in vivo dosimetry [PDF]

open access: yes, 1996
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
core   +2 more sources

Quantum Phenomena in Molecular and Biological Systems: A Decoherence‐Based Decision Framework With Falsifiable Predictions and a Failure‐Mode Taxonomy

open access: yesAdvanced Physics Research, EarlyView.
A physics‐grounded framework based on decoherence timescales (τ_dec vs τ_func), Markovian validity, and falsifiability criteria is applied across molecular systems to distinguish where quantum effects are necessary, marginal, or irrelevant. The analysis integrates quantum chemistry, biological quantum mechanisms, and quantum computing under a unified ...
Sarfaraz K. Niazi
wiley   +1 more source

Radiotherapy quality assurance by individualized in vivo dosimetry: state of the art. [PDF]

open access: yes, 2009
International audienceThe quality insurance in radiotherapy in the frame of highly complex technical process as Intensity modulated radiotherapy (IMRT) needs independent control of the delivered dose to the patient.
Balosso, J.   +12 more
core   +1 more source

Fibre-Optic Dosimetry for MRI-LINACs: A Mini-Review

open access: yesFrontiers in Physics, 2022
For the past few decades, fibre-optic dosimeters (FODs) have been a focus of research for dosimetry with LINACs, owing to a unique set of advantageous qualities: compact dosimeter sizes, an all optical composition (i.e.
Levi Madden   +8 more
doaj   +1 more source

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