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Listar por palabra clave "Positron emission tomography (PET)"

Mostrando ítems 1-14 de 14

Calibration of Gamma Ray Impacts in Monolithic-Based Detectors Using Voronoi Diagrams

Freire, Marta; Gonzalez-Montoro, Andrea; Sánchez Martínez, Filomeno; Benlloch Baviera, Jose María; González Martínez, Antonio Javier (Institute of Electrical and Electronics Engineers, 2020-05)

[EN] Molecular imaging systems, such as positron emission tomography (PET), use detectors providing energy and a 3-D interaction position of a gamma ray within a scintillation block. Monolithic crystals are becoming an ...
Characterization of a High-Aspect Ratio Detector With Lateral Sides Readout for Compton PET

Barrio, John; Cucarella, Neus; González Martínez, Antonio Javier; Freire, Marta; Ilisie, Victor; Benlloch Baviera, Jose María (Institute of Electrical and Electronics Engineers, 2020-09)
Comparative Study With New Accuracy Metrics for Target Volume Contouring in PET Image Guided Radiation Therapy

Shepherd, Tony; Teräs, Mika; Beichel, Reinhard R.; Boellaard, Ronald; Bruynooghe, Michel; Dicken, Volker; Gooding, Mark J.; Julyan, Peter J.; Lee, John A.; Lefèvre, Sébastien; Mix, Michael; Naranjo Ornedo, Valeriana; Wu, Xiaodong; Zaidi, Habib; Zeng,Ziming; Minn, Heikki (Institute of Electrical and Electronics Engineers (IEEE), 2012-11)

[EN] The impact of positron emission tomography (PET) on radiation therapy is held back by poor methods of defining functional volumes of interest. Many new software tools are being proposed for contouring target volumes ...
Development and Performance Evaluation of High Resolution TOF-PET Detectors Suitable for Novel PET Scanners

Lamprou, Efthymios (Universitat Politècnica de València, 2021-03-04)

[ES] La Tomografía por Emisión de Positrones (PET) es una de las técnicas más importantes en la medicina de diagnóstico actual y la más representativa en el campo de la Imagen Molecular. Esta modalidad de imagen es capaz ...
Development of a data acquisition architecture with distributed synchronization for a Positron Emission Tomography system with integrated front-end

Aliaga Varea, Ramón José (Universitat Politècnica de València, 2016-05-02)

[EN] Positron Emission Tomography (PET) is a non-invasive nuclear medical imaging modality that makes it possible to observe the distribution of metabolic substances within a patient's body after marking them with radioactive ...
Developments in Dedicated Prostate PET Instrumentation

González Martínez, Antonio Javier; González-Montoro, Andrea (2024-01)

[EN] Some specific MI designs assessing early detection and staging of PCa have been proposed. It can be differentiated between systems (dedicated-, WB-and TB-PET), and inserts or probes that are placed much closer to the ...
Digital Signal Processing Techniques to Improve Time Resolution in Positron Emission Tomography

Monzó Ferrer, José María; Esteve Bosch, Raul; Lerche, Christoph Werner; Ferrando Jódar, Néstor; Toledo Alarcón, José Francisco; Aliaga Varea, Ramón José; Herrero Bosch, Vicente; Mora Mas, Francisco José (Institute of Electrical and Electronics Engineers (IEEE), 2011-08)

Coincidence time resolution is one of the most important issues in PET detectors. Improving this resolution is required to increase the noise equivalent count rate (NECR) that reduces the noise in the reconstructed images. ...
Evaluation of a Modular PET System Architecture with Synchronization over Data Links

Aliaga Varea, Ramón José; Herrero Bosch, Vicente; Monzó Ferrer, José María; Ros García, Ana; Gadea Gironés, Rafael; Colom Palero, Ricardo José (Institute of Electrical and Electronics Engineers (IEEE), 2014-02)

A DAQ architecture for a PET system is presented that focuses on modularity, scalability and reusability. The system defines two basic building blocks: data acquisitors and concentra- tors, which can be replicated in order ...
Fast Energy Dependent Scatter Correction for List-Mode PET Data

Álvarez-Gómez, Juan Manuel; Santos-Blasco, Joaquín; Moliner Martínez, Laura; Rodríguez-Álvarez, María José (MDPI AG, 2021-10)

[EN] Improvements in energy resolution of modern positron emission tomography (PET) detectors have created opportunities to implement energy-based scatter correction algorithms. Here, we use the energy information of ...
Fast Timing in Medical Imaging

Lecoq, P.; González Martínez, Antonio Javier; Auffray, E.; Konstantinou, G.; Nuyts, J.; Prior, J. O.; Turtos, R. M.; Varela, J. (Institute of Electrical and Electronics Engineers, 2023-05)

[EN] We report in this article on the Fast Timing in Medical Imaging workshop, (Valencia, 2 June 2022). The workshop gathered 104 attendees from all over the world, with representatives from the academic and industrial ...
Metascintillators: New Results for TOF-PET Applications

Lecoq, Paul; Konstantinou, Georgios; Latella, Riccardo; Moliner Martínez, Laura; Nuyts, Johan; Zhang, Lei; Barrio, John; Benlloch Baviera, Jose María; González Martínez, Antonio Javier (Institute of Electrical and Electronics Engineers, 2022-05)

[EN] We report on the progress on a first generation of realistic size metascintillators for time-of-flight PET. These heterostructures combine dense LYSO or BGO plates, interleaved with fast scintillator layers producing ...
PET System Synchronization and Timing Resolution Using High-Speed Data Links

Aliaga Varea, Ramón José; Monzó Ferrer, José María; Spaggiari, Michele; Ferrando Jódar, Néstor; Gadea Gironés, Rafael; Colom Palero, Ricardo José (Institute of Electrical and Electronics Engineers (IEEE), 2011-08)

Current PET systems with fully digital trigger rely on early digitization of detector signals and the use of digital processors, usually FPGAs, for recognition of valid gamma events on single detectors. Timestamps are ...
Semi-Monolithic Meta-Scintillator Simulation Proof-of-Concept, Combining Accurate DOI and TOF

Konstantinou, Georgios; Zhang, Lei; Bonifacio, Daniel; Latella, Riccardo; Benlloch Baviera, Jose María; González Martínez, Antonio Javier; Lecoq, Paul (Institute of Electrical and Electronics Engineers, 2024-05)

[EN] In this study, we propose and examine a unique semimonolithic metascintillator (SMMS) detector design, where slow scintillators (BGO or LYSO) are split into thin slabs and read by an array of SiPM, offering ...
Timing results using an FPGA-based TDC with large arrays of 144 SiPMs

Aguilar, A.; González Martínez, Antonio Javier; Torres, J.; García Olcina, Raimundo; Martos, J.; Soret, J.; Conde Castellanos, Pablo Eloy; Hernández Hernández, Liczandro; Sanchez, F.; Benlloch Baviera, Jose María (Institute of Electrical and Electronics Engineers (IEEE), 2015-02)

Silicon photomultipliers (SiPMs) have become an alternative to traditional tubes due to several features. However, their implementation to form large arrays is still a challenge especially due to their relatively high ...