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Browsing by Subject "MRI"

Now showing items 1-20 of 25

A complete software application for automatic registration of x-ray mammography and magnetic resonance images

Solves Llorens, Juan Antonio; Rupérez Moreno, María José; Monserrat, C.; Feliu, E; Garcia, M; Lloret, M (American Association of Physicists in Medicine: Medical Physics, 2014-08)

Purpose: This work presents a complete and automatic software application to aid radiologists in breast cancer diagnosis. The application is a fully automated method that performs a complete registration of magnetic ...
A Software For Surgical And Radiotherapy Planning Through Multimodal Brain Image Registration And Fusion

Naranjo Ornedo, Valeriana; Morales, Sandra; Legaz-Aparicio, A.; Larrey-Ruiz, J.; Bernabeu, A.; Fuentes-Hurtado, F. (Springer Verlag (Germany), 2015-06)
Análisis y evaluación de nuevos biomarcadores para la enfermedad de Alzheimer mediante un proceso radiomics basado en el análisis de texturas sobre imágenes de resonancia magnética

López Gómez, Carlos (2017-07-11)

[ES] La enfermedad de Alzheimer (EA) es una enfermedad neurodegenerativa que se caracteriza por la presencia de deterioro cognitivo y conductual de aparición en la edad adulta, principalmente en la vejez. Actualmente está ...
Anonimizacion y control de calidad centralizada (CQC) en imagen de resonancia magnetica

Fernández-Cañada Vilata, Ángel (2016-05-17)

[EN] Biomedical image appeared in the field of science 115 years ago with the first radiograph obtained by Wilhelm Conrad Röntgen. By then, the discovery was hailed as one of the greatest technological achievements of ...
Antipsychotic and benzodiazepine use and brain morphology in schizophrenia and affective psychoses - Systematic reviews and birth cohort study.

Huhtaniska, Sanna; korkala, Likka; Heikka, Tuomas; Björnholm, Lassi; Lehtiniemi, Heli; Hulkko, Anja P.; Moilanen, Jani S.; Tohka, Jussi; Manjón Herrera, José Vicente; Coupé, Pierrick; Kiviniemi, Vesa; Isohanni, Matti; Koponen, Hannu; Murray, Graham K.; Miettunen, Jouko (Elsevier, 2018)

[EN] The aim of this paper was to investigate differences in brain structure volumes between schizophrenia and affective psychoses, and whether cumulative lifetime antipsychotic or benzodiazepine doses relate to brain ...
Automatic Individual Arterial Input Functions Calculated From PCA Outperform Manual and Population-Averaged Approaches for the Pharmacokinetic Modeling of DCE-MR Images

Sanz Requena, Roberto; Prats-Montalbán, José Manuel; Marti Bonmati, Luis; Alberich Bayarri, Ángel; García Martí, Gracián; Pérez, Rosario; Ferrer Riquelme, Alberto José (Wiley, 2015-08)

[EN] Background: To introduce a segmentation method to calculate an automatic arterial input function (AIF) based on prin- cipal component analysis (PCA) of dynamic contrast enhanced MR (DCE-MR) imaging and compare it with ...
Automatic thalamus and hippocampus segmentation from MP2RAGE: comparison of publicly available methods and implications for DTI quantification

Naess-Schmidt, Erhard; Tietze, Anna; Blicher, Jakob Udby; Petersen, Mikkel; Mikkelsen, Irene K.; Coupe, Pierrick; Manjón Herrera, José Vicente; Eskildsen, Simon Fristed (Springer Verlag (Germany), 2016-11)

Purpose In both structural and functional MRI, there is a need for accurate and reliable automatic segmentation of brain regions. Inconsistent segmentation reduces sensitivity and may bias results in clinical studies. ...
BEaST: Brain extraction based on nonlocal segmentation technique

Eskildsen, Simon F.; Coupé, Pierrick; Fonov, Vladimir; Manjón Herrera, José Vicente; Leung, Kelvin K.; Guizard, Nicolas; Wassef, Shafik N.; Østergaard, Lasse Riis; Collins, D. Louis; Alzheimer's Dis Neuroimaging (Elsevier, 2012-02-01)

Brain extraction is an important step in the analysis of brain images. The variability in brain morphology and the difference in intensity characteristics due to imaging sequences make the development of a general purpose ...
Collaborative patch-based super-resolution for diffusion-weighted images

Coupé, Pierrick; Manjón Herrera, José Vicente; Chamberland, Maxime; Descoteaux, Maxime; Hiba, Bassem (Elsevier, 2013-12)

In this paper, a new single image acquisition super-resolution method is proposed to increase image resolution of diffusion weighted (DW) images. Based on a nonlocal patch-based strategy, the proposed method uses ...
Demyelinating and ischemic brain diseases: detection algorithm through regular magnetic resonance images

Castillo, D.; Samaniego, R.; Jiménez, Y.; Cuenca, L.; Vivanco, O.; Rodríguez-Álvarez, MJ (The International Society for Optical Engineering., 2017)

[EN] This work presents the advance to development of an algorithm for automatic detection of demyelinating lesions and cerebral ischemia through magnetic resonance images, which have contributed in paramount importance ...
Desarrollo de un taller didáctico para dar a conocer de una forma práctica y amena los principios físicos y los parametros de adquisición de una imagen por resonancia magnética

Ortiz Ruiz, María José (2018-10-11)

[ES] La imagen por resonancia magnética (MRI) es una técnica de imagen médica que permite obtener imágenes del interior de los pacientes de forma no invasiva por medio de radiación no ionizante. Esta téc ...
Developing preclinical devices for neuroscience research in the fields of animal tracking, fMRI acquisition, and 3D histology cutting

Quiñones Colomer, Darío Rubén (2019-03-27)

[ES] La neurociencia es un campo que abarca muchas especialidades. El objetivo de esta tesis es subsanar algunas carencias tecnológicas que existen en los métodos actuales de experimentación animal en neurociencia. En esta ...
DISEÑO DE BOBINA DE RADIOFRECUENCIA E IMPLEMENTACIÓN DE SECUENCIAS DE PULSOS PARA EQUIPO DE IMAGEN DENTAL POR RESONANCIA MAGNÉTICA

Sánchez Izquierdo, Héctor (2018-04-12)

[ES] El presente trabajo de fin de Máster en Ingeniería Industrial ha sido desarrollado en el Instituto de Instrumentación para Imagen Molecular y tiene como objetivo el desarrollo del diseño de una bobina de radiofrecuencia ...
Diseño y desarrollo de un método de superresolución en imágenes de RM usando Deep Learning

Andreu Vilarroig, Carlos (2019-07-30)

[ES] La enfermedad de Alzheimer (EA) es una de las enfermedades neurodegenerativas que mayor prevalencia presenta en la población de edad avanzada. A pesar de que la etiología aún es desconocida, un diagnóstico precoz es ...
Diseño y desarrollo de un software para la segmentacion de estructuras cerebrales en Parkinson

Bertó Giménez, Alexa (2019-07-04)

[ES] En este proyecto se pretende diseñar y desarrollar un software para la segmentacion de estructuras cerebrales relacionadas con el Parkinson a partir de imagenes de RM potenciadas en T2. Las tareas del alumno/a seran ...
Estudio de parámetros de textura mediante técnicas de aprendizaje máquina para la detección temprana de la enfermedad de Alzheimer en imágenes de resonancia magnética

Giménez Arias, Carolina (2018-09-04)

[ES] La enfermedad de Alzheimer (EA) es una enfermedad neurodegenerativa que se caracteriza por un deterioro cognitivo y conductual de inicio insidioso y progresivo de aparición en la edad adulta, y que es responsabl ...
Magnetic resonance brain images algorithm to identify demyelinating and ischemic diseases

Castillo-Malla, Darwin Patricio; Samaniego, R.; Jimenez, Y.; Cuenca, L.; Vivanco, O.; Rodríguez-Álvarez, M.J. (The International Society for Optical Engineering., 2018)

[EN] Brain demyelination lesions occur due to damage of the myelin layer of nerve fibers, this deterioration is the cause of pathologies such as multiple sclerosis, leukodystrophy, encephalomyelitis. Brain ischemia is the ...
Morphological and functional characterization of the lumbar spine derived from MRI

Ribera Navarro, Aida (2016-12-13)

[EN] Lumbar spine is one of the main load-sharing structures of the human body. The understanding of the functional roles of the lumbar spine will help to design appropriate treatment for spinal disorders. This project ...
MRI Compatible Planar Material Acoustic Lenses

Tarrazó-Serrano, Daniel; Castiñeira Ibáñez, Sergio; Sánchez Aparisi, Eugenio; Uris Martínez, Antonio; Rubio Michavila, Constanza (MDPI AG, 2018)

[EN] Zone plate lenses are used in many areas of physics where planar geometry is advantageous in comparison with conventional curved lenses. There are several types of zone plate lenses, such as the well-known Fresnel ...
MRI noise estimation and denoising using non-local PCA

Manjón Herrera, José Vicente; Coupé, Pierrick; Buades, Antonio (Elsevier, 2015-05)

This paper proposes a novel method for MRI denoising that exploits both the sparseness and self-similarity properties of the MR images. The proposed method is a two-stage approach that first filters the noisy image using ...