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Wyszukujesz frazę "Cuisinier, Frederic" wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
New method to analyze resolution acquisition for intraoral scanners
Autorzy:
Desoutter, Alban
Subsol, Gérard
Fargier, Eric
Sorgius, Alexandre
Tassery, Hervé
Fages, Michel
Cuisinier, Frédéric
Tematy:
resolution
intra oral scanner
mesh
MicroCT
Pokaż więcej
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:
https://bibliotekanauki.pl/articles/2106418.pdf  Link otwiera się w nowym oknie
Opis:
In dentistry, 3D intraoral scanners (IOSs) are gaining increasing popularity in the production of dental prostheses. However, the quality of an IOS in terms of resolution remains the determining factor of choice for the practitioner; a high resolution is a quality parameter that can reduce error in the production chain. To the best of our knowledge, the evaluation of IOS resolution is not clearly established in the literature. This study provides a simple assessment of resolution of an IOS by measuring a reference sample and highlights various factors that may influence the resolution. A ceramic tip was prepared to create a very thin object with an edge smaller than the current resolution stated by the company. The sample was scanned with microCT (micro-computed tomography) and an IOS. The resulting meshes were compared. In the mesh obtained with the IOS, the distance between two planes on the edge was approximately 100 micrometers, and that obtained with microtomography was 25 micrometers. The curvature values were 27.46 (standard deviation - SD) 14.71) μm-1 and 5.18 (SD 1.16) μm-1 for microCT and IOS, respectively. These results show a clear loss of information for objects that are smaller than 100 μm. As there is no normalized procedure to evaluate resolution of IOSs, the method that we have developed can provide a positive parameter for control of IOSs performance by practitioners.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Unified protocol to evaluate intraoral scanner resolution, trueness and precision: the RTP-protocol
Autorzy:
Desoutter, Alban
Subsol, Gérard
Bouchiha, Kevin
Benmoumen, Ikram
Cuisinier, Frédéric
Fages, Michel
Carayon, Delphine
Tematy:
resolution
accuracy
trueness
precision
intra oral scanner
Micro CT
Pokaż więcej
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Powiązania:
https://bibliotekanauki.pl/articles/58973997.pdf  Link otwiera się w nowym oknie
Opis:
Over the past decade, studies published on the evaluation of intraoral scanners (IOSs) have mainly considered two parameters, precision and trueness, to determine accuracy. The third parameter, resolution, not much studied, seems essential for an application in dentistry. Objective: The objective of this preliminary study is to create an original method - a Resolution-Trueness-Precision (RTP) protocol to evaluate these three main parameters - resolution trueness and precision - at the same time. Material and Method: A ceramic tip with particular and calibrated dimensions is determined as the reference object and its mesh recorded with a scanning microtomograph, and compared with the one extracted to the IOS. It is the particular geometric shape of the object that will make it possible to simultaneously assess: resolution, trueness and precision. Results: The results have shown a mean resolution of 79.2 μm, a mean for trueness of 17.5 and a mean for precision of 12.3 μm. These values are close to previous results published for this camera. So, the RTP protocol is the first including the three parameters at the same time. Simple, fast and precise, its application can be useful for comparisons between IOSs within research laboratories or test organizations. Finally, this study could be a first step to create a reference kit for practitioners allowing them to control the quality of their IOS over time.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparability of Raman spectroscopic configurations : a large scale cross-laboratory study
Autorzy:
Duponchel, Ludovic
Malherbe, Cedric
Alsamad, Fatima
Batista de Carvalho, Luis A. E.
Marques, Maria Paula M.
Piot, Olivier
Giamarellos-Bourboulis, Evangelos J.
Loza-Alvarez, Pablo
Machill, Susanne
Gardner, Peter
Rau, Julietta V.
Lendl, Bernhard
Gamulin, Ozren
Baia, Monica
Duraipandian, Shiyamala
Cuisinier, Frederic
Lyng, Fiona M.
Grysan, Patrick
Schütze, Karin
Grošev, Vlasta Mohaček
Notingher, Ioan
Kölbach, Micha
Cicchi, Riccardo
Schosserer, Markus
El-Mashtoly, Samir F.
Beleites, Claudia
Neugebauer, Ute
Chourpa, Igor
Bonnier, Franck
Gizurarson, Sveinbjorn
Penel, Guillaume
Morasso, Carlo Francesco
Untereiner, Valérie
Dahms, Marcel
Kiselev, Roman
Moreau, Myriam
Byrne, Hugh J.
Richter, Marc
Stiebing, Clara
Wieland, Karin
Aškrabić, Sonja
Afseth, Nils Kristian
Gardner, Benjamin
Krishnamoorthy, Sivashankar
Petersen, Dennis
Gerwert, Klaus
Falgayrac, Guillaume
Matuszyk, Ewelina
Muhamadali, Howbeer
Araujo-Andrade, Cuauhtemoc
Sergo, Valter
Eppe, Gauthier
Pacia, Marta
Popp, Jürgen
Sinjab, Faris
Goodacre, Royston
de Bettignies, Philippe
Kendall, Catherine
Kubryck, Patrick
Gnyba, Marcin
Bonifacio, Alois
Guntinas-Lichius, Orlando
Anand, Suresh
Helgadottir, Helga
Brauchle, Eva Maria
Avci, Ertug
Mussi, Valentina
Sockalingum, Ganesh D.
Guo, Shuxia
Abalde-Cela, Sara
Pavone, Francesco S.
Marro, Monica
Rybarczyk, Maria Krystyna
Schlücker, Sebastian
Schenke-Layland, Katja
Vanna, Renzo
Stone, Nick
Bocklitz, Thomas
Barańska, Małgorzata
Smulko, Janusz
Baria, Enrico
David, Catalina
Salehi, Hamideh
Ellis, David I.
Culha, Mustafa
Krafft, Christoph
Opis:
The variable configuration of Raman spectroscopic platforms is one of the major obstacles in establishing Raman spectroscopy as a valuable physicochemical method within real-world scenarios such as clinical diagnostics. For such real world applications like diagnostic classification, the models should ideally be usable to predict data from different setups. Whether it is done by training a rugged model with data from many setups or by a primary-replica strategy where models are developed on a 'primary' setup and the test data are generated on 'replicate' setups, this is only possible if the Raman spectra from different setups are consistent, reproducible, and comparable. However, Raman spectra can be highly sensitive to the measurement conditions, and they change from setup to setup even if the same samples are measured. Although increasingly recognized as an issue, the dependence of the Raman spectra on the instrumental configuration is far from being fully understood and great effort is needed to address the resulting spectral variations and to correct for them. To make the severity of the situation clear, we present a round robin experiment investigating the comparability of 35 Raman spectroscopic devices with different configurations in 15 institutes within seven European countries from the COST (European Cooperation in Science and Technology) action Raman4clinics. The experiment was developed in a fashion that allows various instrumental configurations ranging from highly confocal setups to fibre-optic based systems with different excitation wavelengths. We illustrate the spectral variations caused by the instrumental configurations from the perspectives of peak shifts, intensity variations, peak widths, and noise levels. We conclude this contribution with recommendations that may help to improve the inter-laboratory studies.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
    Wyświetlanie 1-3 z 3

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