Results 71 to 80 of about 7,410 (208)

Performance optimization of the Varian aS500 EPID system

Journal of Applied Clinical Medical Physics, 2006
Today, electronic portal imaging devices (EPIDs) are widely used as a replacement to portal films for patient position verification, but the image quality is not always optimal. The general aim of this study was to optimize the acquisition parameters of an amorphous silicon EPID commercially available for clinical use in radiation therapy with the view
Berger, Lucie, François, Pascal, Gaboriaud, Geneviève, Rosenwald, Jean‐Claude   +3 more
openaire   +2 more sources

Dosimetric properties of fluoroscopic EPID for transit dosimetry

, 2015
The aim of this work was to evaluate dose response of fluoroscopic EPID for transit dosimetry applications. Properties studied included warm up time, build-up thickness evaluation, dose history, linearity, stability, and short and long-term ...
Aghamiri, S., Mahdavi, S., Anvari, A., Mohammadi, M., Alaei, P.   +4 more
core   +1 more source

Ligand‐induced ubiquitination regulates endocytosis and homeostasis of the ERECTA receptor kinase for stomatal development

New Phytologist, Volume 250, Issue 5, Page 3167-3181, June 2026.
Summary Stomatal patterning on the plant epidermis is regulated by the ERECTA family of leucine‐rich repeat receptor kinases (LRR‐RKs). While ubiquitination has emerged as a key regulatory mechanism for the endocytosis of receptor kinases, the precise molecular connections among ERECTA ubiquitination, endocytosis, and its biological functions remain ...
Liangliang Chen, Minh Huy Vu, Pengfei Bai, Alicia M. Cochran, Crystal F. Ying, Keiko U. Torii   +5 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  

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

Endophytic and ectomycorrhizal, an overlooked dual ecological niche? Insights from natural environments and Russula species

New Phytologist, Volume 250, Issue 6, Page 3946-3960, June 2026.
Summary Ectomycorrhizal fungi (EcMF) are key components of temperate ecosystems, and recent studies suggest that they can also inhabit non‐EcM plant roots as endophytes. We aimed to (1) provide new evidence of EcMF colonization of non‐EcM hosts, (2) offer direct microscopic confirmation of such endophytism and (3) assess factors influencing ...
Liam Laurent‐Webb, Philippe Rech, Amélia Bourceret, Chloé Chaumenton, Aurélie Deveau, Laurent Genola, Mélanie Januario, Rémi Petrolli, Marc‐André Selosse   +8 more
wiley   +1 more source

¿Qué ha pasado con la EPID durante la pandemia? Situación actual y organización futura en Castilla-La Mancha. Reunión del grupo de EPID de la SOCAMPAR [PDF]

Revista SOCAMPAR, 2020
La complejidad de la consulta EPID conlleva que hay que hacer visitas presenciales, pero hay cabida para la telemedicina y la debemos promover. Las visitas a la consulta deben ser las mínimas y deben estar coordinadas con las pruebas para hacérselas en ...
Godoy R, Sacristán L, Fernández Francés J, Sánchez R, García A, López PC, Bellido A   +6 more
doaj  

Built different: ER cisternae formed by the Arabidopsis Lunapark proteins differ in ultrastructure and affect ER–Golgi transport

New Phytologist, Volume 250, Issue 6, Page 3828-3845, June 2026.
The endoplasmic reticulum (ER) is a key structure in plant cells that helps produce and transport proteins. We discovered that different Lunapark proteins shape ER structures in distinct ways, affecting protein movement and secretion. Understanding how ER structure influences function can help improve plant‐based production of valuable compounds, such ...
Charlotte Pain, Tatiana Spatola Rossi, Nadine Field, Carmen Mata, Alessia Candeo, Muhammad W. Ali, Flavia Moreira‐Leite, Stanley W. Botchway, Federica Brandizzi, Verena Kriechbaumer   +9 more
wiley   +1 more source

Verifikasi Geometri dan Indeks Gamma pada Pesawat Linac Tipe Clinac CX Terintegrasi EPID di RS Universitas Andalas

Wahana Fisika: Jurnal Penelitian Fisika dan Terapannya, 2019
Telah dilakukan verifikasi geometri dan indeks gamma pada pesawat Linac tipe Clinac CX yang terintegrasi Electronic Portal Imaging Device (EPID) di Rumah Sakit Universitas Andalas. Verifikasi bertujuan untuk mengetahui kondisi pesawat Linac.
Dian Milvita, Bagus Sidik Waskito Hadi
doaj   +1 more source

Sensitivity of an Elekta iView GT a-Si EPID model to delivery errors for pre-treatment verification of IMRT fields

, 2014
A Monte Carlo model of an Elekta iViewGT amorphous silicon electronic portal imaging device (a-Si EPID) has been validated for pre-treatment verification of clinical IMRT treatment plans.
Hanlon, Peta, Fielding, Andrew, Herwiningsih, Sri   +2 more
core