Results 51 to 60 of about 15,871 (231)
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 +3 more
doaj +1 more source
Incorporating Clinical Imaging into the Delivery of Microbeam Radiation Therapy
Applied Sciences, 2021 Synchrotron microbeam radiation therapy is a promising pre-clinical radiation treatment modality; however, it comes with many technical challenges. This study describes the image guidance protocol used for Australia’s first long-term pre-clinical MRT ...
Jason Paino +11 more
doaj +1 more source
Silicon Carbide Detectors for in vivo Dosimetry [PDF]
IEEE Transactions on Nuclear Science, 2014 Semiconductor detectors for in vivo dosimetry have served in recent years as an important part of quality assurance for radiotherapy. Silicon carbide (SiC) can represent a better semiconductor with respect to the more popular silicon (Si) thanks to its physical characteristics such as wide bandgap, high electron saturation velocity, lower effective ...
BERTUCCIO, GIUSEPPE +5 more
openaire +1 more source
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 +6 more
doaj +1 more source
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 +3 more
doaj +1 more source
In vivodosimetry: trends and prospects for brachytherapy [PDF]
The British Journal of Radiology, 2014 The error types during brachytherapy (BT) treatments and their occurrence rates are not well known. The limited knowledge is partly attributed to the lack of independent verification systems of the treatment progression in the clinical workflow routine.
Kertzscher, G +4 more
openaire +4 more sources
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 +2 more
doaj +1 more source
Advanced Science, EarlyView.Pancreatic neuroendocrine tumors frequently silence MEN1 through epigenetic mechanisms. Here, SIRT7 recruits DNMT1 to the MEN1 promoter, drives hypermethylation, and enhances DNA repair. Inhibiting SIRT7 restores MEN1, reduces MRN complex abundance, impairs double‐strand break repair, and sensitizes PanNET models to radiation, supporting SIRT7 as a ...
Jianyun Jiang +11 more
wiley +1 more source
Development of a linear array for intracavitary in vivo dosimetry during external beam radiotherapy and brachytherapy. [PDF]
, 2003 We present the details of a new linear array dosimeter consisting of a chain of semiconductors mounted on an ultra-thin (50 μm thick) flexible substrate and housed in an intracavitary catheter. The semiconductors, manufactured by NMRC Cork, have not been
Rogers, K. +3 more
core
Clinical implementation and rapid commissioning of an EPID based in-vivo dosimetry system. [PDF]
, 2014 Using an Electronic Portal Imaging Device (EPID) to perform in-vivo dosimetry is one of the most effective and efficient methods of verifying the safe delivery of complex radiotherapy treatments.
Hanson, Ian M. +6 more
core +1 more source