Results 21 to 30 of about 542 (127)

NEMA NU 4-2008 performance and MRI-compatibility study of the edgeless preclinical PET insert: ScintoTube

Physics in Medicine & Biology
Abstract Objective. The goal of this work is to evaluate the performance of a preclinical Positron emission tomography (PET) system, named ScintoTube, which was constructed using a continuous (edgeless) LYSO:Ce scintillator.
Andrea Gonzalez-Montoro, Marta Freire, Fernando López-Berenguer, Jorge Alamo, Carlos de Alfonso, Julio Barberá, Stuart S Berr, Carlos Correcher, Laura Moliner, Joseph V Rispoli, Jennifer L Sachs, Luis F Vidal, Mark B Williams, José M Benlloch, Antonio J Gonzalez   +14 more
openaire   +4 more sources

Prototype Small-Animal PET-CT Imaging System for Image-Guided Radiation Therapy [PDF]

IEEE Access, 2019
Molecular imaging is becoming essential for precision targeted radiation therapy, yet progress is hindered from a lack of integrated imaging and treatment systems.
Ekaterina Mikhaylova, Jamison Brooks, Darren M. Zuro, Farouk Nouizi, Maciej Kujawski, Srideshikan Sargur Madabushi, Jinyi Qi, Mengxi Zhang, Junie Chea, Erasmus K. Poku, Nicole Bowles, Jeffrey Y. C. Wong, John E. Shively, Paul J Yazaki, Gultekin Gulsen, Simon R. Cherry, Susanta K. Hui   +16 more
doaj   +2 more sources

Influence of detectors efficiency normalization on small animal PET image quality [PDF]

Brazilian Journal of Radiation Sciences, 2019
LabPET GE 4 (a small animal positron emission tomograph) image acquisition is done by 1536 independents channels. Differences in the rate counting of each channel must be corrected so as not compromise image quality. Equipment user manual recommends that
Mateus Gesulado Carneiro de Santana, Guilherme Cavalcante de Albuquerque Souza, Rodrigo Modesto Gadelha Gontijo, Bruno Melo Mendes, Andréa Vidal Ferreira   +4 more
doaj   +2 more sources

First test results of a commercially available clinical PET scanner using the NEMA NU 4 - 2008 small animal PET standards

2008 IEEE Nuclear Science Symposium Conference Record, 2008
The recently published NEMA NU 4 - 2008 Standards has been specially designed for the performance evaluation of small animal PET scanners with appropriate scaling for the mice, rats or monkeys used in pre-clinical applications. In this paper, we report on the NU 4 performance of a commercially available clinical scanner (PEM Flex Solo II, Naviscan, Inc.
null Weidong Luo, Edward Anashkin, Chris G. Matthews   +2 more
openaire   +2 more sources

Contrast-enhanced small-animal PET/CT in cancer research: strong improvement of diagnostic accuracy without significant alteration of quantitative accuracy and NEMA NU 4-2008 image quality parameters. [PDF]

EJNMMI Res, 2013
Abstract Background The use of iodinated contrast media in small-animal positron emission tomography (PET)/computed tomography (CT) could improve anatomic referencing and tumor delineation but may introduce inaccuracies in the attenuation correction of the PET images.
Lasnon C, Quak E, Briand M, Gu Z, Louis MH, Aide N.   +5 more
europepmc   +4 more sources

Comparative analysis of image quality parameters and spatial resolution of three Small Animal PET scanner in Brazil

Brazilian Journal of Radiation Sciences, 2023
This study evaluated Image Quality (IQ) parameters and spatial resolution (SR) of Triumph® LabPET systems installed in three different Brazilian preclinical molecular imaging centers.
Rodrigo Modesto Gadelha Gontijo, Andréa Vidal Ferreira, Daniele Faria, Carlos Alberto Buchpiguel, Samuel Greggio, Gianina Venturin, Jader Costa, Juliana Silva, Marcelo Mamede   +8 more
doaj   +1 more source

Proposal of Brazilian National Program for Quality Control in the small animal PET scanners

Brazilian Journal of Radiation Sciences, 2022
In Brazil, currently there are six preclinical molecular imaging centers and seven different small animal PET systems in use. However, there is still no national specific legislation for research laboratories focused on preclinical molecular images ...
Rodrigo Modesto Gadelha Gontijo
doaj   +1 more source

A semi‐monolithic detector providing intrinsic DOI‐encoding and sub‐200 ps CRT TOF‐capabilities for clinical PET applications

Medical Physics, Volume 49, Issue 12, Page 7469-7488, December 2022., 2022
Abstract Background Current clinical positron emission tomography (PET) systems utilize detectors where the scintillator typically contains single elements of 3–6‐mm width and about 20‐mm height. While providing good time‐of‐flight performance, this design limits the spatial resolution and causes radial astigmatism as the depth‐of‐interaction (DOI ...
Florian Mueller, Stephan Naunheim, Yannick Kuhl, David Schug, Torsten Solf, Volkmar Schulz   +5 more
wiley   +1 more source

Morphometric analysis and prioritisation of watersheds for flood risk management in Wadi Easal Basin (WEB), Jordan, using geospatial technologies

Journal of Flood Risk Management, Volume 14, Issue 2, June 2021., 2021
Abstract Morphometric analysis and sub‐watersheds prioritisation were carried out for the Wadi Easal Basin, Jordan, which is characterised by a high topographic diversity. The total ranking method was applied to prioritise the sub‐watersheds in terms of susceptibility to flash flood.
Mutawakil Obeidat, Muheeb Awawdeh, Farah Al‐Hantouli   +2 more
wiley   +1 more source

NEMA NU 2-2018 performance evaluation of a new generation 30-cm axial field-of-view Discovery MI PET/CT. [PDF]

, 2022
PURPOSE The DMI PET/CT is a modular silicon photomultiplier-based scanner with an axial field-of-view (FOV) between 15 and 25 cm depending on ring configuration (3, 4, or 5 rings). A new generation of the system includes a reengineered detector module,
Kotasidis, Fotis A, Nemirovsky, Alexandra, Zeimpekis, Konstantinos G, Treyer, Valerie, Kotasidis, Fotis A., Huellner, Martin, Kaufmann, Philipp A, Zeimpekis, Konstantinos G., Kaufmann, Philipp A.   +8 more
core   +3 more sources