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Browsing by Author "Arana Fernandez de Moya, Estanislao"

Now showing items 1-20 of 29

2D and 3D texture analysis to differentiate brain metastases on MR images: proceed with caution

Beresova, Monika; Larroza, Andrés; Arana, Estanislao; Varga, Jozsef; Balkay, Laszlo; Moratal, David (Springer-Verlag, 2018-04)

[EN] To find structural differences between brain metastases of lung and breast cancer, computing their heterogeneity parameters by means of both 2D and 3D texture analysis (TA). Patients with 58 brain metastases from ...
A fully automated level-set based segmentation method of thoracic and lumbar vertebral bodies in computed tomography images

Ruiz España, Silvia; Díaz Parra, Antonio; Arana Fernandez de Moya, Estanislao; Moratal Pérez, David (2015)

Spine is a structure commonly involved in several diseases. Identification and segmentation of the vertebral structures are of relevance to many medical applications related to the spine such as diagnosis, therapy or ...
A Fully Automated Method for Spinal Canal Detection in Computed Tomography Images

Díaz Parra, Antonio; Arana Fernandez de Moya, Estanislao; Moratal Pérez, David (2014)

This work presents a new automated method for spinal canal detection in Computed Tomography (CT) images. It uses both 2D and 3D information and the algorithm extracts the spinal canal automatically. The procedure can be ...
A radiomics evaluation of 2D and 3D MRI texture features to classify brain metastases from lung cancer and melanoma

Ortiz-Ramón, Rafael; Larroza-Santacruz, Andrés; Arana Fernandez de Moya, Estanislao; Moratal, David (IEEE Engineering in Medicine and Biology Society, 2017)

[EN] Brain metastases are occasionally detected before diagnosing their primary site of origin. In these cases, simple visual examination of medical images of the metastases is not enough to identify the primary cancer, ...
Agreement in the assessment of metastatic spine disease using scoring systems

Arana Fernandez de Moya, Estanislao; Kovacs, Francisco M.; Royuela, Ana; Asenjo, Beatriz; Perez-Ramirez, Ursula; Zamora, Javier (Elsevier, 2015-04)

PURPOSE: To assess variability in the use of Tomita and modified Bauer scores in spine metastases. MATERIALS AND METHODS: Clinical data and imaging from 90 patients with biopsy-proven spinal metastases, were provided ...
Automatic Brain Morphometry and Volumetry Using SPM on Cognitively Impaired Patients

Cutanda Montaña, Vicente Paul; Moratal, David; Arana Fernandez de Moya, Estanislao (Institute of Electrical and Electronics Engineers, 2015)

[EN] Alzheimer disease (AD) is the most common type of dementia and mild cognitive impairment (MCI) is a syndrome with an increased risk of developing dementia. As neuroimaging is relevant in their diagnosis, the purpose ...
Automatic detection of local Arterial Input Functions through Independent Component Analysis on dynamic contrast enhanced magnetic resonance imaging

Narváez, Mario; Ruiz España, Silvia; Arana Fernandez de Moya, Estanislao; Moratal Pérez, David (2015)

Arterial Input Function (AIF) is obtained from perfusion studies as a basic parameter for the calculus of hemodynamic variables used as surrogate markers of the vascular status of tissues. However, at present, its ...
Automatic segmentation of the spine by means of a probabilistic atlas with a special focus on ribs suppression

Ruiz-España, Silvia; Domingo, Juan; Díaz-Parra, Antonio; Dura, Esther; D'Ocon-Alcaniz, Victor; Arana, Estanislao; Moratal, David (John Wiley & Sons, 2017-09)

[EN] Purpose: The development of automatic and reliable algorithms for the detection and segmentation of the vertebrae are of great importance prior to any diagnostic task. However, an important problem found to accurately ...
Automatic segmentation of the spine by means of a probabilistic atlas with a special focus on ribs suppression. Preliminary results

Ruiz España, Silvia; Domingo Esteve, Juan de Mata; Díaz Parra, Antonio; Durá Martínez, Esther; D'Ocón Alcañiz, Víctor; Arana Fernandez de Moya, Estanislao; Moratal Pérez, David (2015)

Spine is a structure commonly involved in several prevalent diseases. In clinical diagnosis, therapy, and surgical intervention, the identification and segmentation of the vertebral bodies are crucial steps. However, ...
Brain Metastases Detection Methods in Magnetic Resonance Imaging

Pérez-Ramírez, María Úrsula; Arana Fernandez de Moya, Estanislao; Moratal Pérez, David (Institute of Electrical and Electronics Engineers (IEEE), 2016-03)

Early detection of brain metastases increases survival in patients with cancer, since image-guided radiosurgery is the most widely used treatment. As support for the qualitative diagnosis made by radiologists, Computer ...
Brain metastases detection on MR by means of three-dimensional tumor-appearance template matching

Pérez-Ramírez, María Úrsula; Arana Fernandez de Moya, Estanislao; Moratal Pérez, David (Wiley, 2016-09)

PurposeTo develop and evaluate a method for an automatic detection of brain metastases in MR images. Materials and MethodsNineteen patients were scanned using a 1.5 Tesla MR scanner. Two radiologists and a radiation ...
CARACTERIZACIÓN CUANTITATIVA DE LA PATOLOGÍA DISCAL Y LUMBAR DEGENERATIVA MEDIANTE ANÁLISIS DE IMAGEN POR RESONANCIA MAGNÉTICA Y DETECCIÓN Y SEGMENTACIÓN DE LA COLUMNA VERTEBRAL EN PACIENTES ONCOLÓGICOS A PARTIR DEL ANÁLISIS DE IMAGEN EN TOMOGRAFÍA COMPUTARIZADA

Ruiz España, Silvia (Universitat Politècnica de València, 2016-09-01)

[EN] Over the last 20 years health system has been revolutionized by imaging technology so diagnostic imaging has become the mainstay of the management of patients. Nowadays, degeneration of the intervertebral discs, ...
Classifying brain metastases by their primary site of origin using a radiomics approach based on texture analysis: a feasibility study

Ortiz-Ramón, Rafael; Larroza-Santacruz, Andrés; Ruiz-España, Silvia; Arana Fernandez De Moya, Estanislao; Moratal, David (Springer-Verlag, 2018-11)

[EN] Objective To examine the capability of MRI texture analysis to differentiate the primary site of origin of brain metastases following a radiomics approach. Methods Sixty-seven untreated brain metastases (BM) were ...
Computer-Aided Detection of Brain Metastases using a Three-Dimensional Template-Based Matching Algorithm

Pérez Ramírez, María Úrsula; Arana Fernandez de Moya, Estanislao; Moratal Pérez, David (2014)

The purpose of this work was to develop an algorithm for detecting brain metastases in magnetic resonance imaging (MRI), emphasizing the reduction of false positives. Firstly, three-dimensional templates were cross-correlated ...
Cuantificación de la osteoporosis mediante análisis de imagen de Tomografía Computarizada y su correlación con la densitometría ósea

Alacreu Samper, Elena (Universitat Politècnica de València, 2014-03-03)

[ES] La osteoporosis se define como un desorden esquelético caracterizado por una resistencia ósea baja predisponiendo a la persona a un incremento del riesgo de fractura. Esta enfermedad, la cual es uno de los problemas ...
Diagnóstico precoz del cáncer de pulmón: Utilidad de la tomografía axial computarizada de baja dosis de radiación

MARTÍNEZ PÉREZ, ENCARNA (Universitat Politècnica de València, 2017-10-02)

ABSTRACT Lung cancer (LC) is one of the most frequent types of cancer and the one with the highest mortality. Its prognosis is directly related to the stage of the disease at the time of diagnosis. We propose that a ...
Estudio cuantitativo por tractografía cerebral de los principales fascículos en deterioro cognitivo leve y enfermedad de alzheimer

LARROZA SANTACRUZ, ANDRÉS (Universitat Politècnica de València, 2013-02-19)

[ES] La tractografía cerebral es una técnica que permite visualizar in vivo y de forma no invasiva los fascículos de sustancia blanca que conectan distintas partes del cerebro. Para ello se utilizan imágenes de resonancia ...
Estudio de la influencia de la edad en la calidad ósea a partir del análisis mecánico de la mandíbula de una población de mujeres sanas

Gamboa Higuera, Andrés Horacio (Universitat Politècnica de València, 2012-11-22)

[ES] El estudio de las propiedades mecánicas de la mandíbula es de creciente interés para investigadores y profesionales sanitarios en áreas como cirugía maxilofacial, odontología, ortodoncia e implantología, por sus ...
Estudio de la validación de la resonancia mágnetica como técnica óptima para el análisis morfométrico de la microarquitectura trabecular a partir del análisis de muestras óseas adquiridas mediante resonancia magnética, tomografía computarizada y microtomografía computerizada

Gálvez Sánchez, Francisco Javier (Universitat Politècnica de València, 2012-05-02)

Validar si al RM es una técnica óptima para caracterizar el hueso trabecular con el objetivo de poder realizar un diagnóstico precoz de la osteoporosis.
Fully Automatic Spinal Canal Segmentation for Radiation Therapy Using a Gradient Vector Flow-Based Method on Computed Tomography Images: A Preliminary Study

Díaz Parra, Antonio; Arana Fernandez de Moya, Estanislao; Moratal Pérez, David (2014)

Nowadays, radiotherapy is one of the key techniques for localized cancer treatment. Accurate identification of target volume (TV) and organs at risk (OAR) is a crucial step to therapy success. Spinal cord is one of the ...