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Browsing by Author "Moliner Martínez, Laura"

Now showing items 1-20 of 28

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 ...
Analysis of the Statistical Moments of the Scintillation Light Distribution With dSiPMs

Conde Castellanos, Pablo Eloy; González Martínez, Antonio Javier; Gonzalez, A.; Hernández Hernández, Liczandro; Bellido, P.; Crespo Navarro, Efren; Iborra Carreres, Amadeo; Moliner Martínez, Laura; Rigla Pérez, Juan Pablo; Rodríguez Álvarez, María José; Sanchez, F.; Seimetz, Michael; Soriano Asensi, Antonio; Vidal San Sebastián, Luis Fernando; Benlloch Baviera, Jose María (Institute of Electrical and Electronics Engineers (IEEE), 2015-10)

In gamma-ray detectors, monolithic scintillation crystals offer the possibility of preserving the scintillation light distribution especially when painted black. The statistical moments of this distribution provide accurate ...
Attenuation correction without transmission scan for the MAMMI breast PET

Soriano Asensi, Antonio; González Martínez, Antonio Javier; Orero Palomares, Abel; Moliner Martínez, Laura; Carles Fariña, Montserrat; Sánchez Martínez, Filomeno; Benlloch Baviera, Jose María; Correcher Salvador, Carlos; Carrilero Lopez, Vicente; Seimetz, Michael (Elsevier, 2011-08-21)

[EN] Whole-body Positron Emission Tomography (PET) scanners are required in order to span large Fields of View (FOV). Therefore, reaching the sensitivity and spatial resolution required for early stage breast tumor ...
Building blocks of a multi-layer PET with time sequence photon interaction discrimination and double Compton camera

Ilisie, V.; Giménez-Alventosa, Vicent; Moliner Martínez, Laura; Sánchez, F.; González Martínez, Antonio Javier; Rodríguez-Álvarez, M.J.; Benlloch Baviera, Jose María (Elsevier, 2018)

[EN] Current PET detectors have a very low sensitivity, of the order of a few percent. One of the reasons is the fact that Compton interactions are rejected. If an event involves multiple Compton scattering and the total ...
Calibration and Performance Tests of Detectors for Laser-Accelerated Protons

Seimetz, Michael; Bellido, P.; Soriano Asensi, Antonio; García López, J.; Jiménez-Ramos, M.C.; Fernández, B.; Conde Castellanos, Pablo Eloy; Crespo Navarro, Efren; González Martínez, Antonio Javier; Hernández Hernández, Liczandro; Iborra Carreres, Amadeo; Moliner Martínez, Laura; Rigla Pérez, Juan Pablo; Rodríguez Álvarez, María José; Sanchez, F.; Sanchez, S.; Vidal San Sebastián, Luis Fernando; Benlloch Baviera, Jose María (Institute of Electrical and Electronics Engineers (IEEE), 2015)

We present the calibration and performance tests carried out with two detectors for intense proton pulses accelerated by lasers. Most of the procedures were realized with proton beams of 0.46-5.60 MeV from a tandem ...
Characterization of protons accelerated from a 3 TW table-top laser system

Bellido-Millán, Pablo Jesús; Lera, Roberto; Seimetz, Michael; Ruiz-de la Cruz, Alexandro; Torres Peiró, Salvador; Galán, M.; Mur, P.; Sánchez, I.; Zaffino, R.; Vidal San Sebastian, Luis Fernando; Soriano Asensi, Antonio; Sánchez-Góez, Sebastián; Sánchez Martínez, Filomeno; Rodríguez-Álvarez, M.J.; Rigla, J.P.; Moliner Martínez, Laura; Iborra Carreres, Amadeo; Hernández Hernández, Liczandro; Grau-Ruiz, Daniel; González Martínez, Antonio Javier; García-Garrigos, Juan José; Díaz Caballero, Elena; Conde-Castellanos, Pablo Eloy; Aguilar-Talens, Albert; Roso, Luis; Benlloch Baviera, Jose María (IOP Publishing, 2017-05)

[EN] We report on benchmark tests of a 3 TW/50 fs, table-top laser system specifically developed for proton acceleration with an intrinsic pump rate up to 100 Hz. In two series of single-shot measurements differing in pulse ...
Deep learning for MRI-based CT synthesis: a comparison of MRI sequences and neural network architectures

Larroza, Andrés; Moliner, Laura; Álvarez-Gómez, Juan Manuel; Oliver-Gil, Sandra; Espinós-Morató, Héctor; Vergara-Díaz, Marina; Rodríguez-Álvarez, María J. (IEEE, 2019-11-02)

[EN] Synthetic computed tomography (CT) images derived from magnetic resonance images (MRI) are of interest for radiotherapy planning and positron emission tomography (PET) attenuation correction. In recent years, deep ...
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 blockbased on arrays of 144 SiPMs and monolithic scintillators: A performane study

González Martínez, Antonio Javier; Conde Castellanos, Pablo Eloy; Iborra Carreres, Amadeo; Aguilar, A.; Bellido, P.; Garcia-Olcina, R.; Hernández Hernández, Liczandro; Moliner Martínez, Laura; Rigla, J. P.; Rodríguez Álvarez, María José; Sánchez, F; Seimetz, Michael; Soriano Asensi, Antonio; Torres, Jose; Vidal San Sebastián, Luis Fernando; Benlloch Baviera, Jose María (Elsevier, 2015-07-01)

[EN] We have developed a detector block composed by a monolithic LYSO scintillator coupled to a custom made 12 12 SiPMs array. The design is mainly focused to applications such as Positron Emission Tomography. The ...
Dosimetric Calibration of Radiochromic Film For Laser-accelerated Proton Beams

Bellido, P.; Seimetz, Michael; Soriano, A.; Huertas, C.; García Lopez, J.; Jimenez-Ramos, M. C:; Fernandez, B.; Conde, P.; Crespo, E.; González Martínez, Antonio Javier; Hernández, L.; Iborra, A.; Martos, F.; Moliner, L.; Rigla, J. P.; Rodríguez-Álvarez, M. J.; Sánchez, F.; Vidal San Sebastian, Luis Fernando; Benlloch Baviera, Jose María (IEEE, 2013-11-02)

[Otros] When an ultra-intense and ultra-short laser pulse interacts with solid matter a fraction of the laser pulse can be converted into kinetic energy of a beam of charged particles. Radiochromic film (RCF), widely ...
Effect of noise in CT image reconstruction using QR- Decomposition algorithm

Iborra, A.; Rodríguez-Álvarez, M. J.; Soriano, A.; Sánchez, F.; Bellido, P.; Conde, P.; Crespo, E.; González Martínez, Antonio Javier; Martos, F.; Moliner, L.; Rigla, J. P.; Seimetz, Michael; Vidal San Sebastian, Luis Fernando; Benlloch Baviera, Jose María (IEEE, 2013-11-02)

[EN] The QR-Decomposition algorithm for CT 3D image reconstruction uses a linear system of equations to model the CT system response. Linear systems have a condition number that can be used to estimate the image noise. ...
EM tomographic image reconstruction using polarvoxels

Soriano Asensi, Antonio; Rodríguez Álvarez, María José; Iborra Carreres, Amadeo; Sánchez Martínez, Filomeno; Carles Fariña, Montserrat; Conde Castellanos, Pablo Eloy; González Martínez, Antonio Javier; Hernández Hernández, Liczandro; Moliner Martínez, Laura; Orero Palomares, Abel; Vidal San Sebastián, Luis Fernando; Benlloch Baviera, Jose María (Institute of Physics: Hybrid Open Access, 2013-01)

[EN] The splitting of the field of view (FOV) in polar voxels is proposed in this work in order to obtain an efficient description of a cone-beam computed tomography (CT) scanner. The proposed symmetric-polar pixelation ...
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 ...
High resolution and sensitivity gamma camera with active septa. A first Monte Carlo study

Ilisie, Victor; Moliner, Laura; Oliver-Gil, Sandra; Sánchez Martínez, Filomeno; González Martínez, Antonio Javier; Seimetz, Michael; Rodríguez Álvarez, María José; Benlloch Baviera, Jose María (Nature Publishing Group, 2019-12-05)

[EN] Gamma cameras are of great interest due to their high potential in the field of Nuclear Medicine Imaging. They allow for an early diagnosis of reduced size tumors, and also for a wide variety of preclinical studies ...
Implementation and analysis of list mode algorithm using tubes of response on a dedicated brain and breast PET

Moliner Martínez, Laura; Correcher, Carlos; González Martínez, Antonio Javier; Conde Castellanos, Pablo Eloy; Hernández Hernández, Liczandro; Orero Palomares, Abel; Rodríguez Álvarez, María José; Sánchez Martínez, Filomeno; Soriano Asensi, Antonio; Vidal San Sebastián, Luis Fernando; Benlloch Baviera, Jose María (Elsevier, 2013-02-21)

In this work we present an innovative algorithm for the reconstruction of PET images based on the List-Mode (LM) technique which improves their spatial resolution compared to results obtained with current MLEM algorithms. ...
Motion Correction of Multi-Frame PET Data

Cañizares, Gabriel; Espinós-Morató, Héctor; Santos, Joaquín; Hernández, Ángel; Moliner, Laura; Álvarez-Gómez, Juan Manuel; González Martínez, Antonio Javier; Sánchez, F; Rodríguez-Álvarez, MJ.; Benlloch Baviera, Jose María (IEEE, 2019-11-02)

[EN] Motion correction algorithms are necessary in PET studies where the patient cannot remain totally static. Otherwise, artifacts appear in the final reconstructed image, degrading the spatial resolution or even misplacing ...
NEMA Performance Evaluation of CareMiBrain dedicated brain PET and Comparison with the whole-body and dedicated brain PET systems

Moliner, Laura; Rodriguez-Alvarez, Maria J.; CATRET MASCARELL, JUAN VICENTE; González Martínez, Antonio Javier; Ilisie, Victor; Benlloch Baviera, Jose María (Nature Publishing Group, 2019-10-29)

[EN] This article presents system performance studies of the CareMiBrain dedicated brain PET according to NEMA NU 2-2012 (for whole-body PETS) and NU 4-2008 (for preclinical PETs). This scanner is based on monolithic LYSO ...
Noise Analysis in Computed Tomography (CT) Image Reconstruction using QR-Decomposition Algorithm

Iborra Carreres, Amadeo; Rodríguez Álvarez, María José; Soriano Asensi, Antonio; Sanchez, F.; Bellido, P.; Conde Castellanos, Pablo Eloy; Crespo Navarro, Efren; González Martínez, Antonio Javier; Moliner Martínez, Laura; Rigla Pérez, Juan Pablo; Seimetz, Michael; Vidal San Sebastián, Luis Fernando; Benlloch Baviera, Jose María (Institute of Electrical and Electronics Engineers (IEEE), 2015-06)

In this paper, the noise of 3D computed tomography (CT) image reconstruction using QR-Decomposition is analyzed. There are several types of image noise that can interfere with the interpretation of an image. Here, the ...
Performance Evaluation of the Dual Ring MAMMI breast PET

Soriano, A.; Sánchez, F.; Carrilero, V.; Pardo, A.; Vidal San Sebastian, Luis Fernando; Vazquez, C.; Barbera, J.; Seimetz, Michael; Rodríguez-Álvarez, M.J.; Rigla, J. P.; Moliner, L.; Iborra, A.; Hernández, L.; González Martínez, Antonio Javier; Crespo, E.; Conde, P.; Bellido, P.; Caballero, L.; Benlloch Baviera, Jose María (IEEE, 2013-11-02)

[EN] MAMMI is a dedicated breast positron emission tomograph (PET) based on monolythic LYSO crystals, with a transaxial field of view (FOV) of 170 mm. It has been upgraded by adding a second ring of detectors that extends ...
Performance of a DOI-encoding small animal PET system with monolithic scintillators

Carles Fariña, Montserrat; Lerche, Christoph Werner; Sánchez Martínez, Filomeno; Orero Palomares, Abel; Moliner Martínez, Laura; Soriano Asensi, Antonio; Benlloch Baviera, Jose María (Elsevier, 2012-12-11)

PET systems designed for specific applications require high resolution and sensitivity instrumentation. In dedicated system design smaller ring diameters and deeper crystals are widely used in order to increase the system ...