Results 81 to 90 of about 258 (109)

Investigation of Image Reconstruction Parameters of the Mediso nanoScan PC Small-Animal PET/CT Scanner for Two Different Positron Emitters Under NEMA NU 4-2008 Standards

Molecular Imaging and Biology, 2016
The Tera-Tomo 3D image reconstruction algorithm (a version of OSEM), provided with the Mediso nanoScan® PC (PET8/2) small-animal positron emission tomograph (PET)/x-ray computed tomography (CT) scanner, has various parameter options such as total level of regularization, subsets, and iterations. Also, the acquisition time in PET plays an important role.
Penelope Bouziotis, Panayotis Verginis, George Kastis   +2 more
exaly   +3 more sources

Technical Note: Performance evaluation of a small‐animal PET/CT system based on NEMA NU 4–2008 standards

Medical Physics, 2021
AbstractPurposeThe MetisTM PET/CT is a self‐developed, silicon photomultiplier (SiPM) detector‐based, rodent PET/CT system. The objective of this study was to evaluate the performance of the system using the National Electrical Manufacturers Association (NEMA) NU 4–2008 standard protocol.MethodsEnergy resolution, spatial resolution, sensitivity ...
Qiong, Liu, Chaofan, Li, Jiguo, Liu, Kishore, Krish, Xinlei, Fu, Jie, Zhao, Jyh-Cheng, Chen   +6 more
openaire   +2 more sources

Comparison of NEMA NU 4-2008 vs NEMA NU 2-2001 for the performance evaluation of the microPET R4 system

2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC), 2009
Positron Emission Tomography (PET) techniques have gained an important role in the diagnosis of human diseases as well as for pharmaceutical and biomedical research. In order to best optimize their capabilities, evaluation of their performance has to be achieved through standardized methodology from specific standards.
F.D. Popota, P. Aguiar, Y. Fernandez, C. Lois, D. Pareto, D. Ros, J. Pavia, J.D. Gispert   +7 more
openaire   +1 more source

NEMA NU 4-2008 performance evaluation and MR compatibility tests of an APD-based small animal PET-insert for simultaneous PET/MR imaging

Physics in Medicine & Biology, 2022
Abstract An avalanche photodiode (APD)-based small animal positron emission tomography (PET)-insert was fully evaluated for its PET performance, as well as potential influences on magnetic resonance imaging (MRI) performance.
Jonathan A Disselhorst, Danny F Newport, Andreas M Schmid, Fabian P Schmidt, Christoph Parl, Chih-Chieh Liu, Bernd J Pichler, Julia G Mannheim   +7 more
openaire   +2 more sources

Performance evaluation of the small-animal PET scanner ClairvivoPET using NEMA NU 4-2008 Standards

Physics in Medicine and Biology, 2015
The aim of this study was to evaluate the performance of ClairvivoPET using NEMA NU4 standards. The ClairvivoPET incorporates a LYSO dual depth-of-interaction detector system with 151 mm axial field of view (FOV). Spatial resolution, sensitivity, counting rate capabilities, and image quality were evaluated using NEMA NU4-2008 standards.
K, Sato, M, Shidahara, H, Watabe, S, Watanuki, Y, Ishikawa, Y, Arakawa, Y H, Nai, S, Furumoto, M, Tashiro, T, Shoji, K, Yanai, K, Gonda   +11 more
openaire   +2 more sources

Performance Evaluation of a PEM Scanner Using the NEMA NU 4—2008 Small Animal PET Standards

IEEE Transactions on Nuclear Science, 2010
The recently published NEMA NU 4-2008 Standards has been specially designed for evaluating the performance of small animal PET scanners used in preclinical applications. In this paper, we report on the NU 4 performance of a clinical positron emission mammography (PEM) system. Since there are no PEM specific performance test protocols available, and the
Weidong Luo, Edward Anashkin, Christopher G. Matthews   +2 more
openaire   +1 more source

Monte Carlo simulations versus experimental measurements in a small animal PET system. A comparison in the NEMA NU 4-2008 framework

Physics in Medicine and Biology, 2014
In this work a comparison between experimental and simulated data using GATE and PeneloPET Monte Carlo simulation packages is presented. All simulated setups, as well as the experimental measurements, followed exactly the guidelines of the NEMA NU 4-2008 standards using the microPET R4 scanner.
F D, Popota, P, Aguiar, S, España, C, Lois, J M, Udias, D, Ros, J, Pavia, J D, Gispert   +7 more
openaire   +2 more sources

NEMA NU 4-2008 validation and applications of the PET-SORTEO Monte Carlo simulations platform for the geometry of the Inveon PET preclinical scanner

Physics in Medicine and Biology, 2013
Monte Carlo-based simulation of positron emission tomography (PET) data plays a key role in the design and optimization of data correction and processing methods. Our first aim was to adapt and configure the PET-SORTEO Monte Carlo simulation program for the geometry of the widely distributed Inveon PET preclinical scanner manufactured by Siemens ...
Boisson, Frederic, Wimberley, C, Lehnert, W, Zahra, D, Pham, T., Perkins, G., Hamze, H, Gregoire, M-C, Reilhac, A.   +8 more
openaire   +4 more sources

Performance evaluation of a small‐animal PET scanner with 213 mm axis using NEMA NU 4‐2008

Medical Physics
AbstractBackgroundLong‐axis positron emission tomography (PET) has emerged as one of the recent research directions in PET due to its ability to significantly enhance sensitivity and counting performance for low‐dose imaging, rapid imaging, and whole‐body dynamic imaging.PurposeThe PET system presented in this study is a long‐axis animal PET based on ...
Qing, Wei, Yingjie, Wang, Xianchao, Huang, Daowu, Li, Yushuang, Zheng, Peilin, Wang, Xiaoli, Sun, Pei, Chai, Xiaorou, Han, Shuangquan, Liu, Baotong, Feng, Wei, Zhou, Xiangtao, Zeng, Meiling, Zhu, Zhiming, Zhang, Long, Wei   +15 more
openaire   +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   +1 more source