Results 61 to 70 of about 42,019 (243)

Verification of the Accuracy of the Delivered Dose in Brain Tumors by in Vivo Dosimetry Using Diode Detectors [PDF]

Iranian Journal of Medical Physics, 2005
Introduction: During radiotherapy, high accuracy in the dose delivery is required because there is a strong  relationship between the absorbed dose, local tumor control and particularly the normal tissue damage.
M. Taghizadeh Dabbagh, M. Allahverdi, M. Esfahani, P. Haddad   +3 more
doaj   +1 more source

Clinical rationale for in vivo portal dosimetry in magnetic resonance guided online adaptive radiotherapy

Physics and Imaging in Radiation Oncology, 2022
Background and purpose: In magnetic resonance guided online adaptive radiotherapy, the patient model used for plan adaptation and dose calculation is created online under stringent time constraints.
Begoña Vivas Maiques, Igor Olaciregui Ruiz, Tomas Janssen, Anton Mans   +3 more
doaj   +1 more source

The correction for the gamma-ray component in neutron therapy [PDF]

, 1980
Neutron beams for therapy always contain some gamma ray contamination that varies with depth and with distance from the beam axis. The problem therefore arises how the varying gamma ray contribution should be accounted for in dose specification.
Kellerer, Albrecht M., Rassow, Joachim
core   +1 more source

Validation of three-dimensional electronic portal imaging device-based PerFRACTION™ software for patient-specific quality assurance

Journal of Medical Physics, 2019
Purpose: PerFRACTION™ is a three-dimensional (3D) in vivo electronic portal imaging device-based dosimetry software. To validate the software, three phantoms with different inserts (2D array, ionization chamber, and inhomogeneity materials) were ...
A Aziz Sait, Jason Figueredo, Glenn W Jones, Kai Jones, Thomas McGowan, Jeff Kapatoes, Ramani Ramaseshan   +6 more
doaj   +1 more source

Sensitivity of the IRD whole-body counter for in vivo measurements in the case of accidental intakes

Brazilian Journal of Radiation Sciences, 2017
Intakes of radionuclides by humans may occur in the fuel cycle, nuclear medicine, biological research and in TENORM industries and in case of accidents involving workers and the general public.
Bernardo Maranhão Dantas, Eder Augusto de Lucena, Ana Letícia Almeida Dantas   +2 more
doaj   +1 more source

Absorbed radiation dosimetry of the D3-specific PET radioligand [18F]FluorTriopride estimated using rodent and nonhuman primate [PDF]

, 2016
[(18)F]FluorTriopride ([(18)F]FTP) is a dopamine D(3)-receptor preferring radioligand with potential for investigation of neuropsychiatric disorders including Parkinson disease, dystonia and schizophrenia. Here we estimate human radiation dosimetry for [(
Bognar, Christopher, Flores, Hubert P, Karimi, Morvarid, Laforest, Richard, Li, Aixiao, Mach, Robert H, Moerlein, Stephen M, Perlmutter, Joel S, Tu, Zhude, Xu, Jinbin   +9 more
core   +1 more source

Using microelectrode models for real time cell-culture monitoring [PDF]

, 2011
This paper proposes a cell-microelectrode model for cell biometry applications, based on the area overlap as main parameter. The model can be applied to cell size identification, cell count, and their extension to cell growth and dosimetry protocols ...
Cañete, Daniel, Daza Navarro, María Paula, Yúfera García, Alberto   +2 more
core   +1 more source

In vivo dosimetry in gynecological applications—A feasibility study

Brachytherapy, 2018
To investigate the feasibility of in vivo dosimetry using microMOSFET dosimeters in patients treated with brachytherapy using two types of gynecological applicators.In this study, a microMOSFET was placed in an empty needle of an Utrecht Interstitial Fletcher applicator or MUPIT (Martinez Universal Perineal Interstitial Template) applicator for ...
Gellekom, M.P.R. van, Canters, R.A.M., Dankers, F.J.W.M., Loopstra, A., Steen-Banasik, E.M. van der, Haverkort, M.A.D.   +5 more
openaire   +4 more sources

Taming the Immiscibility of Gold, Iron, and Boron to Craft Chemodegradable Nanoparticles for Multimodal Imaging and Radiotherapy

Advanced Healthcare Materials, EarlyView.
Over half of cancer patients undergo radiotherapy. Laser ablation enabled the synthesis of immiscible Au‐Fe‐B nanoparticles designed as degradable bimodal radiosensitizers for X‐ray radiotherapy (XRT), boron neutron capture therapy (BNCT), and bimodal imaging for X‐ray computed tomography (CT) and magnetic resonance imaging (MRI). These nanosensitizers
Michael Bissoli, Clara M.G. de Faria, Veronica Torresan, Maria Assunta Lacavalla, Mattia Cattelan, Denis Badocco, Paolo Pastore, Pasquina Marzola, Laura Cansolino, Cinzia Ferrari, Ian Postuma, Riccardo Vago, Silva Bortolussi, Antonello E. Spinelli, Daniel Forrer, Vincenzo Amendola   +15 more
wiley   +1 more source

On the Possibility to Use the Charge Imbalance in Patients Undergoing Radiotherapy: A New Online, In Vivo, Noninvasive Dose Monitoring System

Applied Sciences, 2021
This paper describes a new real-time, in vivo, noninvasive, biasless detector system acting as a beam monitoring and relative dose measurement system.
G A Pablo Cirrone, Nino Amato, Roberto Catalano, Alessandro Di Domenico, Giacomo Cuttone, Pietro Lojacono, Alfio Mazzaglia, Fabrizio Pace, Giuseppe Pittà, Luigi Raffaele, Vincenzo Salamone, Corrado Spatola, Giada Petringa   +12 more
doaj   +1 more source