Results 41 to 50 of about 66,716 (273)

Simple electronic portal imager-based pretreatment quality assurance using Acuros XB: A feasibility study

Journal of Medical Physics, 2019
Objective: This study demonstrates a novel electronic portal imaging device (EPID)-based forward dosimetry approach for pretreatment quality assurance aided by a treatment planning system (TPS).
Arjunan Manikandan, Sureka Chandra Sekaran, Biplab Sarkar, Sujatha Manikandan   +3 more
doaj   +1 more source

Assessment of flatness and symmetry of megavoltage x-ray beam with an electronic portal imaging device (EPID) [PDF]

, 2002
Copyright © 2002 ACPSEM. All rights reserved. The document attached has been archived with permission from the publisher.The input/output characteristics of the Wellhofer BIS 710 electronic portal imaging device (EPID) have been investigated to establish
A. Curtin-Savard, D. M. Roback, D.A. Jaffray, E. Bezak, F. F. Yin, G. Liu, H. Meertens, IEC, IEC, J. Bijhold, J. Leong, J. M. Michalski, L. Ma, L. Ma, M. Herk van, M.C. Kirby, M.C. Kirby, P.T.R. Rodrigus el, R. Beollaard, T. R. McNutt, T. van Doorn, Wellhofer Dosimetrie   +21 more
core   +1 more source

Low-cost optical manipulation using hanging droplets of PDMS [PDF]

, 2015
We propose and demonstrate a low-cost optical micromanipulation system that makes use of simple microfrabricated components coupled to a smartphone camera for imaging. Layering hanging droplets of polydimethylsiloxane (PDMS) on microscope coverslips, and
Ashkin, Baden, Bellina, Breslauer, Budde, Burnham, Chowdhury, Erickson, Fei, Gambin, Hofmann, Jeong, Lee, Mao, Pralle, Ren, Skandarajah, Smith, Svoboda, Tadmor, Wilbur   +20 more
core   +3 more sources

Metallization of cyanide-modified Pt(111) electrodes with copper [PDF]

, 2015
The support of the University of Aberdeen is gratefully acknowledged.
Cuesta, Angel, Escudero-Escribano, Maria, Mwanda, Jonathan A., Wildi, Christopher   +3 more
core   +2 more sources

Intra- and inter-radiation therapist reproducibility of daily isocenter verification using prostatic fiducial markers

Radiation Oncology, 2006
Background We sought to determine the intra- and inter-radiation therapist reproducibility of a previously established matching technique for daily verification and correction of isocenter position relative to intraprostatic fiducial markers (FM ...
Miller Robert W, Cannon Angela, Arora Barbara C, Li Guang, Xie Huchen, Guion Peter, Havelos Jan, Jocelyn Lucresse, Ayele Asna, Susil Robert C, Ning Holly, Ullman Karen L, Norman Coleman C, Camphausen Kevin, Ménard Cynthia   +14 more
doaj   +1 more source

Assessment of the dosimetric performance of the Mobius3D against portal dose measurements in patient-specific quality assurance

Journal of Medical Physics, 2023
Aim: The Mobius3D software addresses limitations lacking in measurement-based methods in patient-specific quality assurance (QA). The objective of this study was to validate its dosimetric performance against conventionally used portal dose measurements ...
Yasmine Joy M. Labagnoy, Sornjarod Oonsiri, Mananchaya Vimolnoch, Sakda Kingkaew   +3 more
doaj   +1 more source

A Cloud-ready Architecture for Shared Medical Imaging Repository

, 2020
Background and Objective: Nowadays usage paradigms of medical imaging resources are requesting vendor-neutral archives, accessible through standard interfaces, with multi-repository support.
Bastião, Luís, Costa, Carlos, Lebre, Rui   +2 more
core   +1 more source

Color-decoupled photo response non-uniformity for digital image forensics [PDF]

, 2012
The last few years have seen the use of photo response non-uniformity noise (PRNU), a unique fingerprint of imaging sensors, in various digital forensic applications such as source device identification, content integrity verification and authentication.
Li, Chang-Tsun, Li, Yue
core   +2 more sources

A systematic review of methods to immobilise breast tissue during adjuvant breast irradiation [PDF]

, 2013
Greater use of 3D conformal, Intensity Modulated Radiotherapy (IMRT) and external beam partial breast irradiation following local excision (LE) for breast cancer has necessitated a review of the effectiveness of immobilisation methods to stabilise breast
Barrett-Lennard, Becker, Bentel, Bentzen, Canney, Carter, Centre for Reviews and Dissemination, Chen, Chopra, Christopher Bragg, Clarke, Creutzberg, Croog, Cross, David Dodwell, David Green, Fisher, Fisher, Fisher, Gierga, Goldsworthy, Graham, Grann, Hector, Heidi Probst, Hurkmans, Jagsi, John Hart, Keller, Kirby, Latimer, Mahe, Mitchell, Morrow, Munshi, Nalder, Office for National Statistics, Probst, Scottish Intercollegiate Guidelines Network, Stegman, Strydhorst, The Royal College of Radiologists, Institute of Physics and Engineering in Medicine, Society and College of Radiographers, Thilmann, Valdagni, Varga, Veldeman, Veldeman, Veronesi, Zierhut   +48 more
core   +1 more source

Comparing Accuracy of Thermoplastic Mask versus Commercial Bra for the Immobilization of Pendulous Breast During Radiation Therapy Treatment: A Retrospective Cohort Study

Advances in Radiation Oncology, 2021
Purpose: This study aimed to compare thermoplastic mask with bra in terms of setup reproducibility and immobilization of pendulous breasts during radiation therapy (RT).
Zaheeda Mulla, BTech (RT), Omar Iskanderani, MD, FRCP, Amina Weber, Diploma (RT), Abdullah AlMohamad, Diploma (RT), Mohammed Sheikh Al-Amoodi, MD, Shamel Soaida, MBBCh, MSc, MD   +5 more
doaj   +1 more source