Results 1 to 10 of about 114,769,226 (147)

Evaluation of automated pre-treatment and transit in-vivo dosimetry in radiotherapy using empirically determined parameters

open access: yesPhysics and Imaging in Radiation Oncology, 2020
Background and purpose: First reports on clinical use of commercially automated systems for Electronic Portal Imaging Device (EPID)-based dosimetry in radiotherapy showed the capability to detect important changes in patient setup, anatomy and external ...
Evy Bossuyt   +4 more
doaj   +3 more sources

In vivo dosimetry for patients with prostate cancer to assess possible impact of bladder and rectum preparation

open access: yesTechnical Innovations & Patient Support in Radiation Oncology, 2020
Purpose/objective: In all treatment sites of our radiotherapy network, in vivo dosimetry (PerFRACTION™) was fully implemented in February 2018. We hypothesized that additional help with bladder and rectum preparation by home nursing would improve ...
Yawo A.C. Fiagan   +6 more
doaj   +3 more sources

Development of Artificial Intelligence as a Conversion Tool for Cine Electronic Portal Imaging Device Images to Radiotherapy Dosimetry: Preliminary Study [PDF]

open access: yesIranian Journal of Medical Physics, 2022
Introduction: This research is a preliminary study of the development of Artificial Intelligence (AI) as a conversion tool from the pixel value of Cine a-Si 1000 Electronic Portal Imaging Device (EPID) images to dose.
Muhammad Ramadhan   +2 more
doaj   +1 more source

Assessment of mouse-specific pharmacokinetics in kidneys based on 131I activity measurements using micro-SPECT

open access: yesEJNMMI Physics, 2022
Background In order to acquire accurate drug pharmacokinetic information, which is required for tissue dosimetry, micro-SPECT must be quantitative to allow for an accurate assessment of radioligand activity in the relevant tissue. This study investigates
Clarita Saldarriaga Vargas   +4 more
doaj   +1 more source

A Large Area Pixelated Silicon Array Detector for Independent Transit In Vivo Dosimetry

open access: yesApplied Sciences, 2022
A large area pixelated silicon array detector named “MP987” has been developed for in vivo dosimetry. The detector was developed to overcome the non-water equivalent response of EPID (Electronic Portal Imaging Device) dosimetry systems, due to the ...
Owen J. Brace   +9 more
doaj   +1 more source

In Vivo Dosimetry Using a Flat Surface Sun Nuclear Corporation Diode in 60co Beams for Some Radiotherapy Treatments in Ghana [PDF]

open access: yesIranian Journal of Medical Physics, 2019
Introduction: One of the useful standard quality assurance techniques in radiation therapy is monitoring entrance doses in in-vivo dosimetry. An overall tolerance limit of 5% of the absorbed radiation dose has been recommended by the International ...
Eric Manson   +5 more
doaj   +1 more source

A clinical implementation of in vivo dosimetry with n-type Isorad semiconductor diodes [PDF]

open access: yesNuclear Technology and Radiation Protection, 2014
The study was aimed to check the radiotherapy treatment accuracy and definition of action levels during implementation of in vivo dosimetry as a part of quality assurance program.
Rutonjski Laza M.   +5 more
doaj   +1 more source

In vivo dosimetry in brachytherapy: Requirements and future directions for research, development, and clinical practice

open access: yesPhysics and Imaging in Radiation Oncology, 2020
Brachytherapy can deliver high doses to the target while sparing healthy tissues due to its steep dose gradient leading to excellent clinical outcome.
Gabriel P. Fonseca   +7 more
doaj   +1 more source

In-vivo skin dose measurement using gafchromic EBT3 film dosimetry in the radiation therapy of Head and Neck cancers: 2DRT versus IMRT

open access: yesJournal of Radiation Research and Applied Sciences, 2022
Background and Purpose: Head and neck cancers involve very high curative doses of about 70 Gy which is usually associated with acute toxicities most importantly of the skin as it receives the radiation first.
Misba Hamid Baba, Benoy Kumar Singh
doaj   +1 more source

Feasibility Study of Transit Dosimetry (TD) with an Electronic Portal Imaging Device (EPID) in volumetric arc therapy (VMAT) for head and neck cancer (HNC) [PDF]

open access: yesIranian Journal of Medical Physics
Introduction: The progress in radiotherapy treatment modalities, such as Intensity Modulated Radiotherapy (IMRT) and Volumetric Arc Therapy (VMAT), introduces considerable complexity.
ARVIND DIUNDI   +3 more
doaj   +1 more source

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