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Browsing by Subject "Positron emission tomography"

Now showing items 1-20 of 24

144 Channel measurement IC for CdZnTe sensors with energy and time resolution

Volker, Matthias; Hauer, Johann; Benlloch Baviera, Jose María; Soriano Asensi, Antonio; Sánchez Martínez, Filomeno; Carrascal, Jorge; Cela, jose-manuel; Romero, Luciano (Elsevier, 2014-10)

A 144 channel measurement IC for CdZnTe detectors, used for PET, is presented. Each channel consists of a charge sensitive amplifier, a fast and a slow shaper, a peak sampler for the energy acquisition and an event detector ...
A proof-of-concept of cross-luminescent metascintillators: testing results on a BGO: BaF2metapixel

Konstantinou, G.; Latella, R.; Moliner, L.; Zhang, L.; Benlloch Baviera, Jose María; González Martínez, Antonio Javier; Lecoq, P. (IOP Publishing, 2023-01-21)

[EN] Objective: Time-of-flight positron emission tomography (PET)is the next frontier in improving the effective sensitivity. To achieve superior timing for time-of-flight PET, combined with high detection efficiency and ...
A Voxel-based analysis of FDG-PET in traumatic brain injury: regional metabolism and relationship between the thalamus and cortical areas

García Panach, Javier; Lull Noguera, Nuria; Lull Noguera, Juan José; Ferri Domínguez, Joan; Martínez, Carlos; Sopena, Pablo; Robles Viejo, Montserrat; Chirivella Garrido, Javier; Noé Sebastián, Enrique (Mary Ann Liebert, 2011-09)

[EN] The objective was to study the correlations and the differences in glucose metabolism between the thalamus and cortical structures in a sample of severe traumatic brain injury (TBI) patients with different neurological ...
Algoritmo de reconstrucción analítico para el escáner basado en cristales monolíticos MINDView

Sánchez Góez, Sebastián (Universitat Politècnica de València, 2021-01-17)

[ES] La tomografía por emisión de positrones (PET, del inglés Positron Emission Tomography) es una técnica de medicina nuclear en la que se genera una imagen a partir de la detección de rayos gamma en coincidencia. Estos ...
AMIC: An Expandable Front-End for Gamma-Ray Detectors With Light Distribution Analysis Capabilities

Herrero Bosch, Vicente; Lerche ., Christoph Werner; Spaggiari, Michele; Aliaga, Ramón J.; Ferrando Jódar, Néstor; Colom Palero, Ricardo José (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2011)

[EN] A novel CMOS integrated front-end architecture is presented throughout this paper. It is designed to be used with detectors based on continuous scintillation crystals plus position sensitive photomultiplier. Its ...
Analysis of radionuclide production in cyclotrons for application in positron emission tomography (PET)

Ródenas Diago, José; Jabaloyas, E. (Springer-Verlag, 2019-12)

[EN] The present work focuses on the analysis of nuclear reactions that can occur in a cyclotron for the generation of radionuclides compliant with the restrictions necessary for medical use in a PET. These radionuclides ...
Análisis comparativo de valores SUV y ADC en carcinoma de próstata mediante análisis de imágenes de resonancia magnética y tomografía por emisión de positrones

Cantalapiedra Cabezas, Cristina (Universitat Politècnica de València, 2021-03-05)

[ES] La literatura científica ha demostrado que los carcinomas prostáticos reducen la difusión en imágenes de resonancia magnética (MRI, Magnetic Resonance Imaging). Para cuantificar la difusión se utiliza el coeficiente ...
Application of Artificial Neural Network for Reducing Random Coincidences in PET

Oliver, J,F.; Fuster García, Elíes; Cabello, J.; Tortajada Velert, Salvador; Rafecas Lopez, Maria Magdalena (Institute of Electrical and Electronics Engineers (IEEE), 2013-10)

Positron Emission Tomography (PET) is based on the detection in coincidence of the two photons created in a positron annihilation. In conventional PET, this coincidence identification is usually carried out through a ...
Biomedical signal analysis in automatic classification problems

Fuster García, Elíes (Editorial Universitat Politècnica de València, 2012-09-20)

A lo largo de la última década hemos asistido a un desarrollo sin precedentes de las tecnologías de la salud. Los avances en la informatización, la creación de redes, las técnicas de imagen, la robótica, las micro/nano ...
Design and evaluation of the MAMMI dedicated breast PET

Moliner Martínez, Laura; González Martínez, Antonio Javier; Soriano Asensi, Antonio; Sánchez Martínez, Filomeno; Correcher Salvador, Carlos; Orero Palomares, Abel; Carles Fariña, Montserrat; Vidal San Sebastián, Luis Fernando; Barberá Ballester, Julio; Caballero Ontanaya, Luis; Seimetz, Michael; Vazquez Barreiros, Carlos; Benlloch Baviera, Jose María (American Association of Physicists in Medicine, 2012-09)

Purpose: A breast dedicated positron emission tomography (PET) scanner has been developed based on monolithic LYSO crystals coupled to position sensitive photomultiplier tubes (PSPMTs). In this study, we describe the ...
Detector block performance based on a monolithic LYSO crystal using a novel signal multiplexing method

González, A.; Sánchez, F.; Martí, Rosana; Hernández Hernández, Liczandro; Aguilar-Talens, Albert; BARBERA BALLESTER, JULIO; CATRET MASCARELL, JUAN VICENTE; Cañizares-Ledo, Gabriel; Conde-Castellanos, Pablo Eloy; Lamprou, Efthymios; Martos Pedrosa, Francisco; Sánchez-Góez, Sebastián; Vidal San Sebastian, Luis Fernando; Benlloch Baviera, Jose María; González Martínez, Antonio Javier (Elsevier, 2018-12-21)

[EN] Organ dedicated PET devices provide improved imaging performance when compared to whole body systems. The present study summarizes the test carried out to study a new detector block designed for an organ dedicated PET ...
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. ...
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 ...
Feasibility Study of a Small Animal PET Insert Based on a Single LYSO Monolithic Tube

González Martínez, Antonio Javier; Berr, Stuart S.; Cañizares-Ledo, Gabriel; Gonzalez-Montoro, Andrea; Orero Palomares, Abel; Correcher Salvador, Carlos; Rezaei, Ahmadreza; Nuyts, Johan; Sanchez, Filomeno; Majewski, Stan; Benlloch Baviera, Jose María (Frontiers Media, 2018-11-28)

[EN] There are drawbacks with using a Positron Emission Tomography (PET) scanner design employing the traditional arrangement of multiple detectors in an array format. Typically PET systems are constructed with many regular ...
Metabolismo talámico y situación neurológica tras un traumatismo craneoencefálico. Estudio mediante PET-FDG y morfometría basada en vóxel

Lull Noguera, Nuria; Noé, E.; Lull Noguera, Juan José; García Panach, Javier; García Martí, Gracián; Chirivella, J.; Ferri, J.; Sopena, R; De la Cueva, L; Robles Viejo, Monserrat (Elsevier España (Elsevier Doyma), 2010-04)

Objetivos Estudiar la relación entre el metabolismo talámico y la situación neurológica en pacientes que han sufrido un traumatismo craneoencefálico (TCE). Material y métodos Se incluyó a 19 pacientes que habían sufrido ...
On the implementation of acollinearity in PET Monte Carlo simulations

Toussaint, Maxime; Loignon-Houle, Francis; Auger, Etienne; Lapointe, Gabriel; Dussault, Jean-Pierre; Lecomte, Roger (IOP Publishing, 2024-09-21)

[EN] Objective. Acollinearity of annihilation photons (APA) introduces spatial blur in positron emission tomography (PET) imaging. This phenomenon increases proportionally with the scanner diameter and it has been shown ...
Performance comparison of large-area SiPM arrays suitable for gamma ray detectors

Gonzalez-Montoro, Andrea; González Martínez, Antonio Javier (IOP Publishing, 2019-07)

[EN] The use of photosensors of the type Silicon Photomultpliers (SiPM) has widely been extended in recent years for multiple applications in both research and industry. However, there is a lack of comparative studies of ...
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 ...
Puesta a punto de un modelo de rinosinusitis crónica asociada a poliposis nasal monitorizado mediante técnicas de análisis de imágenes micro CT-PET

Rius Rocabert, Sergio (Universitat Politècnica de València, 2015-01-19)

[ES] La rinosinusitis es un proceso inflamatorio que afecta a la cavidad y senos nasales obstruyéndolos. Se denomina rinosinusitis crónica (RSC) cuando la enfermedad perdura más allá de las 12 semanas. La RSC puede verse ...
Simulation study of resistor networks applied to an array of 256 SiPMs

González Martínez, Antonio Javier; Moreno, Manuel; Barberá, Julio; Conde Castellanos, Pablo Eloy; Hernández Hernández, Liczandro; Moliner Martínez, Laura; Monzó Ferrer, José María; Orero Palomares, Abel; Peiró Cloquell, Antonio; Polo Collado, Ramiro; Rodríguez Álvarez, María José; Ros García, Ana; Sánchez Martínez, Filomeno; Soriano Asensi, Antonio; Vidal San Sebastián, Luis Fernando; Benlloch Baviera, Jose María (Institute of Electrical and Electronics Engineers (IEEE), 2013-04)

[EN] In this work we describe a procedure to reduce the number of signals detected by an array of 256 Silicon Photo-multipliers (SiPMs) using a resistor network to divide the signal charge into few readout channels. Several ...