Results 71 to 80 of about 128,460 (250)

Radiological protection and certification for medical professionals in Brazil

Brazilian Journal of Radiation Sciences, 2018
Radiation protection is supported by three pillars: justification, optimization and dose limitation. The safe use of ionizing radiation is governed by the limits of public and occupational exposure, justification and optimization for medical exposures ...
CAMILLE Pinho Vieira DE CASTRO DA LUZ, Lidia Vasconcelos de Sá, José Ubiratan Delgado   +2 more
doaj   +1 more source

Patient Dose Optimisation of Abdominopelvic Protocols During X‐Ray Imaging

Journal of Medical Radiation Sciences, EarlyView.
This study evaluates organ doses in abdominopelvic radiography for both erect and supine positions, addressing dose optimisation concerns in Ghana. Using CalDose X and thermoluminescence dosimeters, organ doses and image quality were analysed, revealing significant dose reductions with optimised exposure parameters (70 kVp, 10 mAs, 110 cm FDD).
Emmanuel Ekem‐Ferguson, Shirazu Issahaku, Mark Pokoo‐Aikins, Mary Boadu   +3 more
wiley   +1 more source

Operational intervention levels for reactor emergencies IAEA recommendations

Brazilian Journal of Radiation Sciences, 2018
The IAEA publication EPR-NPP-OILs-2017, OPERATIONAL INTERVENTION LEVELS FOR REACTOR EMERGENCIES AND METHODOLOGY FOR THEIR DERIVATION [1], provides selected default OIL values, describing a methodology for their derivation, as well as practical tools and ...
Lais Alencar de Aguiar, Arlene Alves dos Reis, Raul dos Santos   +2 more
doaj   +1 more source

Stabilised Hyaluronic Acid Gel Rectal Spacers in MRI‐Guided Brachytherapy for Gynaecological Cancers: A Prospective Feasibility Study

Journal of Medical Radiation Sciences, EarlyView.
This prospective study investigated the feasibility of stabilised hyaluronic acid gel as a rectal spacer in gynaecological cancer brachytherapy. In twelve patients, the spacer was successfully inserted into the rectovaginal space without serious adverse events, had high visibility on MRI, increased the target‐to‐rectum distance compared with no spacer ...
Carminia Lapuz, Sylvia Hanna, Eddie Lau, Adeline Lim, Mark Tacey, Daryl Lim Joon, Claire Dempsey, Jenny Sim, Michael Chao   +8 more
wiley   +1 more source

Qualification of miniature fission chambers at high temperature in OSU Research Reactor [PDF]

EPJ Web of Conferences
With the renewed interest in Sodium Fast Reactors and Advanced Small modular reactors such as Molted Salt ones, there is a need for high temperature (600 °C) neutron instrumentation.
de Izarra Grégoire, Barbot Loïc, Tsai Kevin   +2 more
doaj   +1 more source

Microtubular structure impairment after GSM-modulated RF radiation exposure

Arhiv za Higijenu Rada i Toksikologiju, 2020
The objective of the study was to investigate whether low-level 915 MHz GSM-modulated radiofrequency (RF) radiation impairs microtubular structure and affects normal cell growth.
Čermak Ana Marija Marjanović, Ilić Krunoslav, Pavičić Ivan   +2 more
doaj   +1 more source

Australian Society of Medical Imaging and Radiation Therapy Image Registration in Radiation Therapy Position Paper

Journal of Medical Radiation Sciences, EarlyView.
The ASMIRT Image Registration Working Party outlines the critical role of radiation therapists in performing, assessing and documenting rigid and deformable image registration across treatment planning, delivery and adaptive workflows. The position paper emphasises consistent nomenclature, robust QA processes, strong collaboration with diagnostic ...
Tamara Barry, Huong Nguyen, Laurel Schmidt, Kate Stewart, Nigel Anderson   +4 more
wiley   +1 more source

Comparative Evaluation of Four Stereotactic Radiosurgery Planning Approaches for Treatment of Posterior Choroidal Melanoma

Journal of Medical Radiation Sciences, EarlyView.
This study evaluated four stereotactic radiosurgery planning approaches for posterior choroidal melanoma (CM). Analysis of thirteen CM cases resulted in a clinically meaningful reduction in dose to the brain for Brainlab Elements modulated arcs (BE) and Varian Eclipse HyperArc modulated arcs (HA) compared to Brainlab iPlan dynamic conformal arc therapy
Robert Nigro, Kenton Thompson, Cathy Markham, Adam U. Yeo, Daniel Sapkaroski, Claire Phillips   +5 more
wiley   +1 more source

Dosimetric validation for an automatic brain metastases planning software using single-isocenter dynamic conformal arcsDosimetric validation for an automatic brain metastases planning software using single-isocenter dynamic conformal arcs. [PDF]

, 2016
An automatic brain-metastases planning (ABMP) software has been installed in our institution. It is dedicated for treating multiple brain metastases with radiosurgery on linear accelerators (linacs) using a single-setup isocenter with noncoplanar dynamic
Andrews, David W., Dicker, Adam, Evans, James J., Li, Jun, Lui, Haisong, Pappas, Evangelos, Shi, Wenyin, Werner-Wasik, Maria, Yu, Yan   +8 more
core   +1 more source

Size‐specific dose estimates calculated using patient size measurements from scanned projection radiograph in high‐resolution chest computed tomography

Journal of Medical Radiation Sciences, Volume 72, Issue 1, Page 85-92, March 2025.
This study established that patient's lateral width measurements made from scanned projection radiograph (SPR) is an overestimate compared to those measured from tomographic slices by about 10%. Size‐specific dose estimates (SSDE) calculated using lateral width measured from SPR correlates well with SSDE calculated using water equivalent diameter of ...
Ajit Brindhaban
wiley   +1 more source