Results 11 to 20 of about 15,561,549 (138)

Comparison of the Performance Evaluation of the MicroPET R4 Scanner According to NEMA Standards NU 4-2008 and NU 2-2001 [PDF]

IEEE Transactions on Nuclear Science, 2012
The purpose of this work was to evaluate the performance of the microPET R4 system for rodents according to the NU 4-2008 standards of the National Electrical Manufacturers Association (NEMA) for small-animal positron emission tomography (PET) systems and to compare it against its previous evaluation according the adapted clinical NEMA NU 2-2001.
Popota, Foteini D., 1980-, Aguiar, Pablo, Herance Camacho, José Raul, Pareto, Deborah, Rojas, Santiago, Ros, Domènec, Pavía Segura, Javier, Gispert, Juan Domingo   +7 more
openaire   +3 more sources

NEMA NU 4-2008 Performance Measurements of Two Commercial Small-Animal PET Scanners: ClearPET and rPET-1 [PDF]

IEEE Transactions on Nuclear Science, 2011
In this work, we compare two commercial positron emission tomography (PET) scanners installed at CIEMAT (Madrid, Spain): the ClearPET and the rPET-1. These systems have significant geometrical differences, such as the axial field of view (110 mm on ClearPET versus 45.6 mm on rPET-1), the configuration of the detectors (whole ring on ClearPET versus one
Cañadas Castro, Mario, Embid, Miguel, Desco Menéndez, Manuel, Vaquero López, Juan José, Pérez, José Manuel, Lage Negro, Eduardo   +5 more
openaire   +4 more sources

Performance Evaluation of a PET of 7T Bruker Micro-PET/MR Based on NEMA NU 4-2008 Standards

Electronics, 2022
Purpose: This study aimed to measure the performance evaluation of the Bruker sequential micro-positron emission tomography/magnetic resonance imaging (PET/MRI) scanner by following National Electrical Manufacturers Association (NEMA) NU 4-2008 standards’ protocol.
Kishore Doss, Pei Mion, Yu-Chieh Kao, Tsung-Ter Kuo, Jyh-Cheng Chen   +4 more
openaire   +2 more sources

Performance evaluation of the nanoScan® P123S total-body PET [PDF]

EJNMMI Physics
Purpose Before utilising preclinical Position Emission Tomography (PET) systems for biological studies, evaluating their performance is important to better qualify the scanner’s applications.
Dániel Réti, Carlos-Alcaide Corral, Islay Cranston, Victoria J. M. Reid, Kerry M. O’Rourke, Timaeus E. F. Morgan, Axel Montagne, Maurits A. Jansen, Valeria K. Burianova, Andrew Sutherland, Péter Major, Kálmán Nagy, Gergő Bagaméry, Adriana A. S. Tavares   +13 more
doaj   +2 more sources

Performance evaluation of a PET insert for preclinical MRI in stand-alone PET and simultaneous PET–MRI modes [PDF]

EJNMMI Physics, 2021
Background This study aimed to evaluate the performance of a preclinical PET insert in three configurations: as a stand-alone unit outside the MRI bore, inside the bore of a cryogen-free 3T MRI and, finally, while performing simultaneous PET/MRI studies.
Gaelle Emvalomenos, Sofie Trajanovska, Binh T. T. Pham, Peter Doughty, Jerome Burnet, Isabelle Smith, Ruslan Garipov, Marie-Claude Gregoire, Nana Sunn, John McGrath, Steven R. Meikle   +10 more
doaj   +2 more sources

Trapezoidal back projection for positron emission tomography reconstruction [PDF]

EJNMMI Physics
Background In the back projection step of the 3D PET reconstruction, all Lines of Responses (LORs) that go through a given voxel need to be identified and included in an integral.
Dóra Varnyú, Krisztián Paczári, László Szirmay-Kalos   +2 more
doaj   +2 more sources

Assessing PET performance, image quality, and attenuation correction in the presence of RF coils within a 9.4 T MRI for preclinical simultaneous imaging [PDF]

EJNMMI Physics
Background This study evaluates the performance of a positron emission tomography (PET) insert combined with a 9.4 Tesla magnetic resonance (MR) imaging system using three different radiofrequency (RF) coils.
Claudia Kuntner, Joachim Friske, Andrea Stessl, Martin Haas, Lara Luna Breyer, Thomas Wanek, Marcus Hacker, Thomas Helbich, Ivo Rausch   +8 more
doaj   +2 more sources

NEMA NU 4-2008 and in vivo imaging performance of RAYCAN trans-PET/CT X5 small animal imaging system [PDF]

Physics in Medicine & Biology, 2019
Abstract The RAYCAN Trans-PET/CT X5 is a preclinical positron emission tomography and computed tomography (PET/CT) system intended for in vivo imaging of rats and mice, featuring all-digital readout electronics for PET data acquisition.
J Teuho, C Han, L Riehakainen, A Honkaniemi, M Tirri, H Liljenbäck, J Virta, S Gu, S Liu, L Wan, M Teräs, A Roivainen, Q Xie, J Knuuti   +13 more
openaire   +4 more sources

Feasibility of in vivo small animal imaging using a clinical total-body PET/CT system [PDF]

EJNMMI Physics
Background Clinical PET scanners have long been explored for preclinical imaging, but limited spatial resolution and sensitivity have restricted their use for preclinical studies.
Julia G. Mannheim, Wenhong Lan, Maurizio Conti, Franziska Siedler, Marcel A. Krueger, Kristina Herfert, Christian la Fougère, Fabian P. Schmidt   +7 more
doaj   +2 more sources

Performance of nanoScan PET/CT and PET/MR for quantitative imaging of 18F and 89Zr as compared with ex vivo biodistribution in tumor-bearing mice [PDF]

EJNMMI Research, 2021
Introduction The assessment of ex vivo biodistribution is the preferred method for quantification of radiotracers biodistribution in preclinical models, but is not in line with current ethics on animal research.
Marion Chomet, Maxime Schreurs, Ricardo Vos, Mariska Verlaan, Esther J. Kooijman, Alex J. Poot, Ronald Boellaard, Albert D. Windhorst, Guus AMS van Dongen, Danielle J. Vugts, Marc C. Huisman, Wissam Beaino   +11 more
doaj   +2 more sources