Results 31 to 40 of about 1,178,335 (287)

Supplemental computational phantoms to estimate out-of-field absorbed dose in photon radiotherapy [PDF]

Physics in Medicine & Biology, 2018
The purpose of this study was to develop a straightforward method of supplementing patient anatomy and estimating out-of-field absorbed dose for a cohort of pediatric radiotherapy patients with limited recorded anatomy. A cohort of nine children, aged 2-14 years, who received 3D conformal radiotherapy for low-grade localized brain tumors (LBTs), were ...
Kyle J Gallagher, J. Tannous, R. Nabha, J. Feghali, Z. Ayoub, W. Jalbout, B. Youssef, P. Taddei   +7 more
semanticscholar   +3 more sources

Validation and clinical implementation of an accurate Monte Carlo code for pencil beam scanning proton therapy. [PDF]

, 2018
Monte Carlo (MC)-based dose calculations are generally superior to analytical dose calculations (ADC) in modeling the dose distribution for proton pencil beam scanning (PBS) treatments.
Ainsley, Christopher, Huang, Sheng, Kang, Minglei, Lin, Liyong, McDonough, James E, Simone, Charles B, Solberg, Timothy D, Souris, Kevin   +7 more
core   +2 more sources

Issues arising from the HASTE experiments [PDF]

, 2005
[FIRST PARAGRAPH] The HASTE project work discussed in the foregoing papers can be depicted as being aimed at answering two questions: “Does greater secondary task load from an In-Vehicle Information System (IVIS) lead to an identifiably worse ...
Brookhuis, Brookhuis, De Waard, Dingus, Holohan, Karel Brookhuis, Oliver Carsten, Pashler, Wierwille   +8 more
core   +2 more sources

Performance evaluation of a Monte Carlo-based treatment planning system in out-of-field dose estimation during dynamic IMRT with different dose rates

Informatics in Medicine Unlocked, 2022
Aim: The present study aimed to investigate the effect of dose rate variations in the out-of-field regions on the dose calculation accuracy of an algorithm based on the Monte Carlo (MC) method implemented in Monaco (V.5.11.03) Treatment Planning System ...
Leila Mahmoudi, Kamal Mostafanezhad, Ahad Zeinali   +2 more
doaj   +1 more source

Primacy of effective communication and its influence on adherence to artemether-lumefantrine treatment for children under five years of age: a qualitative study. [PDF]

, 2012
BACKGROUND\ud \ud Prompt access to artemesinin-combination therapy (ACT) is not adequate unless the drug is taken according to treatment guidelines. Adherence to the treatment schedule is important to preserve efficacy of the drug.
A Chinbuah, A Rowe, C Carpenter, C Falade, C Hoepfl, C Wongsrichanalai, D Ofori-Adjei, D Simba, D Simba, D Simba, D Zurovac, Daudi O Simba, Deodatus Kakoko, E Ashley, E Rutebemberwa, J Cresswell, J Nsungwa-Sabiiti, J Todd, L Conteh, M Denscombe, M DiMatteo, M DiMatteo, M George, M Gomes, M Thiede, MQ Patton, N Beer, N White, N White, P Choo, P Piola, P Piola, P Travis, R Bogdan, R Ruslami, S Kvåle, S McCombie, S Sirima, S Yeung   +38 more
core   +5 more sources

The Estimation of Radiation Dose to Out-of-Field Points of Organs at Risk in Block and MLC Shielded Fields in Lung Cancer Radiation Therapy

Frontiers in Biomedical Technologies, 2023
Purpose: Photon-field shaping in radiation therapy with cerrobend block or Multi-Leaf Collimator (MLC) leads to an increase in the scattered dose to the out-of-field Organ At Risk (OAR).
Nastaran Sadat Momeni, Saeed Afraydoon, Nima Hamzian, Abolfazl Nikfarjam, Mahmoud Vakili Ghasemabad, Sepideh Abdollahi-Dehkordi, Masoud Shabani, Mahdi Dehestani, Adel Heidari   +8 more
doaj   +1 more source

Modeling the variations of Dose Rate measured by RAD during the first MSL Martian year: 2012-2014 [PDF]

, 2015
The Radiation Assessment Detector (RAD), on board Mars Science Laboratory's (MSL) rover Curiosity, measures the {energy spectra} of both energetic charged and neutral particles along with the radiation dose rate at the surface of Mars.
Appel, Jan K., Boehm, Eckart, Boettcher, Stephan, Brinza, David E., Burmeister, Soenke, Ehresmann, Bent, Guo, Jingnan, Hassler, Donald M., Heber, Bernd, Kahanpaeae, H., Koehler, Jan, Lohf, Henning, Martin, Cesar, Posner, Arik, Rafkin, Scot, Reitz, Guenther, Wimmer-Schweingruber, Robert F., Zeitlin, Cary   +17 more
core   +2 more sources

Estimated radiation doses to ovarian and uterine organs in breast cancer irradiation using radio‐photoluminescent glass dosimeters (RPLDs)

Journal of Medical Radiation Sciences, 2021
Introduction The well‐being of breast cancer patients is essential, especially fertility in patients of reproductive age. The objective of this study was to estimate the radiation doses to the ovaries and uterus for different treatment techniques of ...
Puntiwa Oonsiri, Chulee Vannavijit, Mananchaya Wimolnoch, Sivalee Suriyapee, Kitwadee Saksornchai   +4 more
doaj   +1 more source

Three-dimensional conformal irradiation with a multilayer energy filter for proton therapy [PDF]

, 2001
The first experimental evidence of three-dimensional conformal irradiation is performed by using a new type of filter developed for charged particle radiotherapy. The new filter can yield a static irradiation field where the width of the spread-out Bragg
Akine Yasuyuki, Hayakawa Yoshinori, Hosono Katsuhisa, Kohno Ryosuke, Maruhashi Akira, Nohtomi Akihiro, Sakae Takeji, Sato Masaru, Terunuma Toshiyuki, 榮 武二, 照沼 利之   +10 more
core   +1 more source

In-Air Electron Streaming Effect for Esophageal Cancer Radiotherapy With a 1.5 T Perpendicular Magnetic Field: A Treatment Planning Study

Frontiers in Oncology, 2020
PurposeTo investigate the in-air out-of-field electron streaming effect (ESE) for esophageal cancer radiotherapy in the presence of 1.5 T perpendicular magnetic field.MethodsTen esophageal cancer patients treated with conventional Linac were ...
Hongdong Liu, Shouliang Ding, Bin Wang, Yongbao Li, Ying Sun, Xiaoyan Huang   +5 more
doaj   +1 more source