Results 11 to 20 of about 542 (127)

NEMA NU 4-2008 Comparison of Preclinical PET Imaging Systems [PDF]

Journal of Nuclear Medicine, 2012
The National Electrical Manufacturers Association (NEMA) standard NU 4-2008 for performance measurements of small-animal tomographs was recently published. Before this standard, there were no standard testing procedures for preclinical PET systems, and manufacturers could not provide clear specifications similar to those available for clinical systems ...
Andrew L Goertzen, Qinan Bao, Melanie Bergeron   +2 more
exaly   +8 more sources

Performance based on NEMA NU-4 2008 Standard of CDTN/CNEN’s Small Animal PET Scanner

Brazilian Journal of Radiation Sciences, 2022
This study aimed to evaluate the general performance of the preclinical PET scanner (LabPET Solo 4, GE) at CDTN/CNEN using the NEMA NU 4-2008 protocol.
Rodrigo Modesto Gadelha Gontijo, Andréa Vidal Ferreira, Juliana Batista da Silva, Marcelo Mamede   +3 more
doaj   +2 more sources

Image quality assessment using NEMA NU 4/2008 standards in small animal PET scanner

Brazilian Journal of Radiation Sciences, 2019
In Brazil, there are few microPET in use and a quality control protocols standardization are needed to harmonize their use in the research field. Thus, the purpose of this study is to characterize the image quality performance of the microPET scanner ...
Rodrigo Modesto Gadelha Gontijo, Andréa Vidal Ferreira, Juliana Batista Silva, Marcelo Henrique Mamede   +3 more
doaj   +6 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

Image quality evaluation of a small animal PET scanner [PDF]

Brazilian Journal of Radiation Sciences, 2020
Performance testing of small animal PET scanners is very important to ensure the high performance required for this particular type of PET scanner. In this sense, National Electrical Manufactures Association (NEMA) published its NU 4/2008 standards, a ...
Andréa Vidal Ferreira, Rodrigo Modesto Gadelha Gontijo, Guilherme Cavalcante de Albuquerque Souza, Bruno Melo Mendes, Juliana Batista da Silva, Marcelo Mamede   +5 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

Image-Quality Assessment for Several Positron Emitters Using the NEMA NU 4-2008 Standards in the Siemens Inveon Small-Animal PET Scanner [PDF]

Journal of Nuclear Medicine, 2010
The positron emitters (18)F, (68)Ga, (124)I, and (89)Zr are all relevant in small-animal PET. Each of these radionuclides has different positron energies and ranges and a different fraction of single photons emitted. Average positron ranges larger than the intrinsic spatial resolution of the scanner (for (124)I and (68)Ga) will deteriorate the ...
Disselhorst, J.A., Brom, M., Laverman, P., Slump, C.H., Boerman, O.C., Oyen, W.J.G., Gotthardt, M., Visser, E.P.   +7 more
openaire   +6 more sources

Influence of image reconstruction protocols on the image quality of a small animal PET scanner using 18F and 11C [PDF]

Brazilian Journal of Radiation Sciences, 2021
The small animal positron emission tomography (PET) scanner from Molecular Imaging Laboratory (LIM/CDTN) is dedicated to pre-clinical studies on new 18F and 11C-based radiopharmaceuticals and to development of novel applications for well-known ...
João Vitor do Carmo Barbosa, Rodrigo Modesto Gadelha Gontijo, Guilherme Cavalcante de Albuquerque Souza, Bruno Melo Mendes, Juliana Batista da Silva, Marcelo Mamede, Andréa Vidal Ferreira   +6 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

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