Results 31 to 40 of about 127,938 (332)

A geometry and dose-volume based performance monitoring of artificial intelligence models in radiotherapy treatment planning for prostate cancer

Physics and Imaging in Radiation Oncology, 2023
Background and Purpose: Clinical Artificial Intelligence (AI) implementations lack ground-truth when applied on real-world data. This study investigated how combined geometrical and dose-volume metrics can be used as performance monitoring tools to ...
Geert De Kerf, Michaël Claessens, Fadoua Raouassi, Carole Mercier, Daan Stas, Piet Ost, Piet Dirix, Dirk Verellen   +7 more
doaj  

Affinity-Based Luminescent Iridium(III) Complexes for the Detection of Disease-Related Proteins

Inorganics, 2022
The occurrence of diseases is usually accompanied by changes in protein levels and types. These differentially expressed proteins can be used as biomarkers for the diagnosis and treatment of diseases.
Wanhe Wang, Jianhua Liu, Sang-Cuo Nao, Dik-Lung Ma, Jing Wang, Chung-Hang Leung   +5 more
doaj   +1 more source

A catalytic cycle for oxidation of tert-butyl methyl ether by a double C−H activation-group transfer process [PDF]

, 2008
A square-planar, iridium(I) carbene complex is shown to effect atom and group transfer from nitrous oxide and organic azides, releasing the corresponding formate or formimidate and an iridium(I)−dinitrogen adduct.
Grubbs, Robert H., Whited, Matthew T.
core   +2 more sources

A Hexanuclear Iridium Chain

Angewandte Chemie International Edition, 2003
Electrons in chains: A novel metallic chain made up of six iridium atoms (see picture) with an average oxidation state of +1.33 has been found in the complex HH,HT,HH-[Ir6(μ-OPy)6(I)2(CO)12] (Opy=2-pyridonate, H=head, T=tail). This complex provides a new link in the electronic sequence connecting dinuclear IrI and IrII complexes.
Tejel, Cristina, Ciriano, Miguel A., Villarroya, B. Eva, López, José A., Lahoz, Fernando J., Oro, Luis A.   +5 more
openaire   +4 more sources

Sub-Chronic Oral Exposure to Iridium (III) Chloride Hydrate in Female Wistar Rats: Distribution and Excretion of the Metal

Dose-Response, 2012
Iridium tissue distribution and excretion in female Wistar rats following oral exposure to iridium (III) chloride hydrate in drinking water (from 1 to 1000 ng/ml) in a sub-chronic oral study were determined.
Ivo Iavicoli, Luca Fontana, Antonio Bergamaschi, Marcelo Enrique Conti, Anna Pino, Daniela Mattei, Beatrice Bocca, Alessandro Alimonti   +7 more
doaj   +1 more source

Precision of image-guided spinal stereotactic ablative radiotherapy and impact of positioning variables

Physics and Imaging in Radiation Oncology, 2022
Background and purpose: Spinal stereotactic ablative body radiotherapy (SABR) requires high precision. We evaluate the intrafraction motion during cone-beam computed tomography (CBCT) guided SABR with different immobilization techniques.
Charlotte Billiet, Wim Vingerhoed, Steven Van Laere, Ines Joye, Carole Mercier, Piet Dirix, Daan Nevens, Peter Vermeulen, Paul Meijnders, Dirk Verellen   +9 more
doaj  

Evaluation of automated pre-treatment and transit in-vivo dosimetry in radiotherapy using empirically determined parameters

Physics and Imaging in Radiation Oncology, 2020
Background and purpose: First reports on clinical use of commercially automated systems for Electronic Portal Imaging Device (EPID)-based dosimetry in radiotherapy showed the capability to detect important changes in patient setup, anatomy and external ...
Evy Bossuyt, Reinhilde Weytjens, Daan Nevens, Sarah De Vos, Dirk Verellen   +4 more
doaj  

Comparing treatment uncertainty for ultra- vs. standard-hypofractionated breast radiation therapy based on in-vivo dosimetry

Physics and Imaging in Radiation Oncology, 2022
Background and purpose: Postoperative ultrahypofractionated radiation therapy (UHFRT) in 5 fractions (fx) for breast cancer patients is as effective and safe as conventionally hypofractionated RT (HFRT) in 15 fx, liberating time for higher-level daily ...
Yawo A.C. Fiagan, Evy Bossuyt, Melanie Machiels, Daan Nevens, Charlotte Billiet, Philip Poortmans, Thierry Gevaert, Dirk Verellen   +7 more
doaj  

Smartphone-Based pH Sensor for Home Monitoring of Pulmonary Exacerbations in Cystic Fibrosis. [PDF]

, 2017
Currently, Cystic Fibrosis (CF) patients lack the ability to track their lung health at home, relying instead on doctor checkups leading to delayed treatment and lung damage.
Conrad, Douglas, Hall, Drew A, Phelps, Tom, Sun, Alexander, Venkatesh, AG, Yao, Chengyang   +5 more
core   +2 more sources

Processing of Iridium and Iridium Alloys

Platinum Metals Review, 2008
Iridium and its alloys have been considered to be difficult to fabricate due to their high melting temperatures, limited ductility, sensitivity to impurity content and particular chemical properties. The variety of processing methods used for iridium and its alloys are reviewed, including purification, melting, forming, joining and powder metallurgy ...
openaire   +2 more sources