Results 21 to 30 of about 13,873 (197)

- In Vivo Dosimetry in Brachytherapy [PDF]

, 2012
As discussed in the following sections, in vivo dosimetry has been utilized for dierent purposes during the radiation therapy of cancer patients. Initially, this technique was used to verify dose to the organs adjacent to the implanted volume. However, verications of the accuracy of the treatment delivery for complex treatment techniques have been ...
Cygler, Joanna E, Tanderup, Kari, Beddar, Sam, Pérez-Calatayud, José   +3 more
openaire   +2 more sources

Breast in vivo dosimetry by EPID

Journal of Applied Clinical Medical Physics, 2010
An electronic portal imaging device (EPID) is an effective detector for in vivo transit dosimetry. In fact, it supplies two‐dimensional information, does not require special efforts to be used during patient treatment, and can supply data in real time.
Fidanzio, Andrea, Greco, Francesca, Mameli, Alessandra, Azario, Luigi, Balducci, Mario, Gambacorta, Maria Antonietta, Frascino, Vincenzo, Cilla, Savino, Sabatino, Domenico, Piermattei, Angelo   +9 more
openaire   +4 more sources

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

Rectal and Bladder Dose Measurements in the Intracavitary Applications of Cervical Cancer Treatment with HDR Afterloading System: Comparison of TPS Data with MOSFET Detector [PDF]

Journal of Biomedical Physics and Engineering, 2020
Background: Intracavitary brachytherapy plays a major role in management of cervical carcinoma. Assessment of dose received by OAR’s therefore becomes crucial for the estimation of radiation toxicities in HDR brachytherapy.
N Singh, S Ahamed, A Sinha, S Srivastava, N K Painuly, A Mandal, S N Prasad   +6 more
doaj   +1 more source

Dose estimation in patients treated with radiotherapy for SARS-COVID disease based on EPID measurement

Nowotwory, 2022
INTRODUCTION: COVID radiotherapy requires performance of all radiotherapy (RT) procedures during one site visit due to the infectious nature of the disease.
Krzysztof Ślosarek, Tomasz Rutkowski, Adam Gądek, Łukasz Sroka, Łukasz Dolla, Roman Rutkowski, Jerzy Jaroszkiewicz   +6 more
doaj   +1 more source

Use of Thermoluminescence Dosimetry for QA in High-Dose-Rate Skin Surface Brachytherapy with Custom-Flap Applicator

Sensors, 2023
Surface brachytherapy (BT) lacks standard quality assurance (QA) protocols. Commercially available treatment planning systems (TPSs) are based on a dose calculation formalism that assumes the patient is made of water, resulting in potential deviations ...
Francesco Manna, Mariagabriella Pugliese, Francesca Buonanno, Federica Gherardi, Eva Iannacone, Giuseppe La Verde, Paolo Muto, Cecilia Arrichiello   +7 more
doaj   +1 more source

Simultaneous measurement of In vivo and transit mid-plane doses with ionization chambers in gynecological malignancy patients undergoing three-dimensional conformal radiotherapy

Journal of Medical Physics, 2020
Purpose: The aim of this study is to estimate delivered radiation doses inside planning tumor volume (PTV) using the in vivo (mid-plane dose) measurement and transit measurement methods in gynecological malignancy patients undergoing three-dimensional ...
Putha Suman Kumar, Challapalli Srinivas, B M Vadhiraja, Sourjya Banerjee, R Shreyas, P U Prakash Saxena, Ramamoorthy Ravichandran, Dilson Lobo   +7 more
doaj   +1 more source

In vivo dosimetry with an electronic portal imaging device for prostate cancer radiotherapy with an endorectal balloon

Physics and Imaging in Radiation Oncology, 2019
Electronic portal imaging device-based in vivo dosimetry with a commercial product was performed for 10 prostate cancer patients treated with an air-filled endorectal balloon.
Bo Sterckx, Isabell Steinseifer, Markus Wendling   +2 more
doaj   +1 more source

Development and Utility of an Imaging System for Internal Dosimetry of Astatine-211 in Mice

Bioengineering, 2023
In targeted radionuclide therapy, determining the absorbed dose of the ligand distributed to the whole body is vital due to its direct influence on therapeutic and adverse effects. However, many targeted alpha therapy drugs present challenges for in vivo
Atsushi Yagishita, Miho Katsuragawa, Shin’ichiro Takeda, Yoshifumi Shirakami, Kazuhiro Ooe, Atsushi Toyoshima, Tadayuki Takahashi, Tadashi Watabe   +7 more
doaj   +1 more source

EPID in vivo dosimetry in RapidArc technique [PDF]

Reports of Practical Oncology & Radiotherapy, 2010
The aim of the study was to estimate the dose at the reference point applying an aSi-EPID device in the course of patient treatment.The method assumes direct proportionality between EPID signal and dose delivered to the patient reference point during the treatment session.
Slosarek, Krzysztof, Szlag, Marta, Bekman, Barbara, Grzadziel, Aleksandra   +3 more
openaire   +2 more sources