Results 81 to 90 of about 8,621 (193)

Task‐based image quality and dosimetric validation of HyperSight CBCT for adaptive radiotherapy

Journal of Applied Clinical Medical Physics, Volume 27, Issue 9, September 2026.
Abstract Background Cone‐beam computed tomography (CBCT) is increasingly used in adaptive radiotherapy (ART), yet the dosimetric accuracy and image quality of advanced CBCT imaging platforms—such as Halcyon HyperSight 4.0 (HH), which combines an upgraded detector panel with advanced iterative reconstruction, scatter‐correction, and metal‐artifact ...
Byungmoon Park, Taeyoon Kim, Kwan‐Woo Lee   +2 more
wiley   +1 more source

Investigating the electronic portal imaging device for small radiation field measurements

Journal of Medical Physics, 2017
Purpose: With the advent of state-of-the-art treatment technologies, the use of small fields has increased, and dosimetry in small fields is highly challenging.
Arpita Agarwal, Nikhil Rastogi, K J Maria Das, S A Yoganathan, D Udayakumar, Shaleen Kumar   +5 more
doaj   +1 more source

A multi-faceted community intervention is associated with knowledge and standards of workplace mental health: the Superior Mental Wellness @ Work study

BMC Public Health, 2019
Background Poor psychosocial work environments, such as those with low psychological support and high demands, can be harmful to the mental health of workers.
Vicki L. Kristman, Jessica Lowey, Lynda Fraser, Susan Armstrong, Silva Sawula   +4 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, Volume 73, Issue 3, Page 345-351, September 2026.
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

Investigation of the mechanical performance of Siemens linacs components during arc: gantry, MLC, and electronic portal imaging device

Medical Devices: Evidence and Research, 2015
Pejman Rowshanfarzad,1 Peter Häring,2 Hans L Riis,3 Sune J Zimmermann,3 Martin A Ebert1,4 1School of Physics, The University of Western Australia, Crawley, WA, Australia; 2German Cancer Research Center (DKFZ), Medical Physics in Radiation Oncology ...
Rowshanfarzad P, Häring P, Riis HL, Zimmermann SJ, Ebert MA   +4 more
doaj  

Polynucleotides HPT‐Based Dermal Filler for Skin Rejuvenation: A Prospective Clinical Investigation

Journal of Cosmetic Dermatology, Volume 25, Issue 9, September 2026.
ABSTRACT Background Polynucleotides (PN)‐based dermal fillers are increasingly used for skin rejuvenation due to their biocompatibility and regenerative properties. Aims This study aimed to confirm the efficacy and safety of Plinest (Mastelli) in improving skin hydration of the face, neck, and décolleté over 4 months follow‐up.
Chiara Teramo, Andrea Mattioli, Carolina Prussia   +2 more
wiley   +1 more source

A drought stress‐induced MYB transcription factor regulates pavement cell shape in leaves of European aspen (Populus tremula)

New Phytologist, Volume 251, Issue 5, Page 2688-2705, September 2026.
MYB305a promoter expression increases in pavement cells as they grow and acquire their complex shape. Summary Leaf pavement cells of many plant species develop jigsaw puzzle‐like shapes in which neighboring cells interdigitate, providing an ideal model for the study of cell shape regulation.
Sijia Liu, Siamsa M. Doyle, Kathryn M. Robinson, Zahra Rahneshan, Nathaniel R. Street, Stéphanie Robert   +5 more
wiley   +1 more source

Development of a new VMAT QA framework for Mobius3D using control-point specific EPID images

Frontiers in Oncology
PurposeThis study presents novel quality assurance (QA) approach for volumetric modulated arc therapy (VMAT) that leverages frame-by-frame electronic portal imaging device (EPID) images integrated into Mobius3D for accurate three-dimensional dose ...
JaeHyun Seok, JaeHyun Seok, JaeHyun Seok, Hojin Kim, Min Cheol Han, Jihun Kim, Kwangwoo Park, Hyeonjeong Cho, Hyeonjeong Cho, Hyeonjeong Cho, Dohyeon Yoo, Jin Sung Kim, Jin Sung Kim, Jin Sung Kim   +13 more
doaj   +1 more source

Systemic acquired resistance: an emerging role for jasmonates in local signal biogenesis, translocation and distal signal decoding

New Phytologist, Volume 251, Issue 6, Page 3142-3158, September 2026.
Jasmonate signalling underpins establishment of plant systemic acquired resistance (SAR). Activation of the hypersensitive response (HR) not only contains the pathogen but establishes broad spectrum resistance in unchallenged leaves. The strong burst of reactive oxygen/nitrogen species initiating the HR results in lipid peroxidation (illustrated by ...
Fay Bennett, Erin Stroud, Pradeep Kachroo, Murray Grant   +3 more
wiley   +1 more source

Research on Position Verification of Multi-Leaf Collimator (MLC) and Dose Verification Based on Electronic Portal Imaging Device

Zhongguo yiliao qixie zazhi
ObjectiveA quality control (QC) system based on the electronic portal imaging device (EPID) system was used to realize the Multi-Leaf Collimator (MLC) position verification and dose verification functions on Primus and VenusX accelerators.
Jianfeng SUI, Jiawei SUN, Kai XIE, Liugang GAO, Tao LIN, Xinye NI   +5 more
doaj   +1 more source