Results 21 to 30 of about 244,363 (195)

Can the Risk of Dysphagia in Head and Neck Radiation Therapy Be Predicted by an Automated Transit Fluence Monitoring Process During Treatment? A First Comparative Study of Patient Reported Quality of Life and the Fluence-Based Decision Support Metric

Technology in Cancer Research & Treatment, 2021
Purpose/Objective(s): The additional personnel and imaging procedures required for Adaptive Radiation Therapy (ART) pose a challenge for a broad implementation.
Seng Boh Lim PhD, Nancy Lee MD, Kaveh Zakeri MD, Peter Greer PhD, Todsaporn Fuangrod PhD, Frederick Coffman PhD, Laura Cerviño PhD, D. Michael Lovelock PhD   +7 more
doaj   +1 more source

Noise level inside sri lanka transport board buses and hearing impairment of long- and short-distance bus drivers of ampara and Batticaloa Districts, Sri Lanka

Indian Journal of Community Medicine, 2022
Background: Transport drivers are more vulnerable to hearing impairment due to the traffic environment and fast-growing urbanization. Objective: The study aims to determine the noise level inside the Sri Lanka Transport Board (SLTB) buses, hearing ...
Suresh Kannah Shanmugarajah, Millawage Supun Dilara Wijesinghe   +1 more
doaj   +1 more source

Development of a linear array for intracavitary in vivo dosimetry during external beam radiotherapy and brachytherapy. [PDF]

, 2004
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., Joyce, Malcolm J., Price, R. A., Benson, C.   +3 more
core   +4 more sources

Evolution of Portable Sensors for In-Vivo Dose and Time-Activity Curve Monitoring as Tools for Personalized Dosimetry in Molecular Radiotherapy

Sensors, 2023
Treatment personalization in Molecular Radiotherapy (MRT) relies on pre- and post-treatment SPECT/ PET-based images and measurements to obtain a patient-specific absorbed dose-rate distribution map and its evolution over time.
Lidia Strigari, Raffaella Marconi, Elena Solfaroli-Camillocci   +2 more
doaj   +1 more source

Setup in a clinical workflow and impact on radiotherapy routine of an in vivo dosimetry procedure with an electronic portal imaging device. [PDF]

PLoS ONE, 2018
High conformal techniques such as intensity-modulated radiation therapy and volumetric-modulated arc therapy are widely used in overloaded radiotherapy departments.
Jie Li, Angelo Piermattei, Pei Wang, Shengwei Kang, Mingyong Xiao, Bin Tang, Xiongfei Liao, Xin Xin, Mattia Grusio, Lucia Clara Orlandini   +9 more
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]

Iranian 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, KIRAN SHARMA, CHANDI BHATT, SANGEETA HAZARIKA   +3 more
doaj   +1 more source

Comparing treatment uncertainty for ultra- vs. standard-hypofractionated breast radiation therapy based on in-vivo dosimetry

Physics and Imaging in Radiation Oncology, 2022
Background and purpose: Postoperative ultrahypofractionated radiation therapy (UHFRT) in 5 fractions (fx) for breast cancer patients is as effective and safe as conventionally hypofractionated RT (HFRT) in 15 fx, liberating time for higher-level daily ...
Yawo A.C. Fiagan, Evy Bossuyt, Melanie Machiels, Daan Nevens, Charlotte Billiet, Philip Poortmans, Thierry Gevaert, Dirk Verellen   +7 more
doaj   +1 more source

Evaluation of an Electronic Portal Imaging Device for Transit Dosimetry [PDF]

Acta Oncologica, 1999
The possibility of using a commercially available electronic portal imaging device for transit dosimetry was investigated. The detection unit of the device comprises a metal plate/fluorescence screen and a camera. Basic parameters of this system were investigated: stability, detector uniformity, dose-response curve, field-size dependence and phantom ...
X, He, A, Van Esch, R, Reymen, D, Huyskens   +3 more
openaire   +2 more sources

A simple method to back-project isocenter dose of radiotherapy treatments using EPID transit dosimetry

Brazilian Journal of Radiation Sciences, 2017
The aim of this work was to implement a simple algorithm to evaluate isocenter dose in a phantom using the back-projected transmitted dose acquired using an Electronic Portal Imaging Device (EPID) available in a Varian Trilogy accelerator with two ...
Thiago Bernardino da Silveira, Bianca de Quadros Cerbaro, Luiz Antônio Ribeiro da Rosa   +2 more
doaj   +1 more source

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

Technical 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, Evy Bossuyt, Daan Nevens, Piet Dirix, Frank Theys, Thierry Gevaert, Dirk Verellen   +6 more
doaj   +1 more source