Ruth Montes

La mejor biblioteca digital de libros en PDF, EPUB y MOBI

Utilidad diagnóstica en el glaucoma del análisis de las fibras retinianas mediante polarimetría láser asociado a la autoperimetría y a sistemas de inteligencia artificial (redes neuronales)

Ficha del Libro

Libro Utilidad diagnóstica en el glaucoma del análisis de las fibras retinianas mediante polarimetría láser asociado a la autoperimetría y a sistemas de inteligencia artificial (redes neuronales)

Owing to the great importance of Glaucoma and because it is one of the main causes of blindness in the world, we are working to contribute a new help to obtain a diagnosis as early as possible, an adequate statistics and an early treatment for Glaucoma, so that we could improve the quality of life of persons who suffer this problem. The persons who have been included in the population sample were voluntarily included and they came from ophthalmic routine exams made in their practice, they signed the consent to be included in the protocol and they declared not taking any medication which could affect the results, in the same ways, they also declared not being regular drinkers or smokers. 106 eyes of 53 patients have been studied (31 women and 22 men) each eye was considered individually. The eyes are classified in different stages of Glaucoma, defined by an expert ophthalmologist, taking into account the definition proposed by Caprioli (1992), in which eyes are defined from group 0 (normal eyes) up to group 5 (terminal Glaucoma) from obtained data from the medical history (qualitative variable), from contributions of the visual area study by autoperimetry and from the study of nerve fiber layer of the retina by polarimetry laser (quantitative variable). The Artificial Intelligence is applicated, it is a neuronal network system which provide a degree of objectivity as much as possible when establishing a clinical diagnosis of Glaucoma. When we have finished the design and training of the system, the classification of the Artificial Intelligence will be able to assign each patient their corresponding group without the especialist taking part with a high index of specificity and sensitivity. Among the conclusions we underlined that the assessment of the visual memory by the program seven of the autoperimetry kinetic/static Dicon TKS 4000 is a fat and reliable test to differentiate healthy from pathological persons in advanced stages of Glaucoma without providing algorithms which can use to quantify the depth of the zone and their relation with incipient alterations. The functional capacity and measures of perimetric sensitivity quadrant are suitable parameters to be considered as input variables in neuronal network design in this study as evaluation of visual field defects by autoperimetry objectified. The analysis of retinal never fiber layer defects by scanning laser polarimetry using the GDX analyzer NFA II version, suppose an indirect quantitative method which objectifies peripapillary level changes. Among the index polarimetrics which we have obtained, we can use them as input variables of the neuronal net as follows: desviations from normal rates in each quadrant, the number of fibers and average thickness. The neuronal network multilayer perceptron of backpropagation shape in this study has the ideal caracteristics with 16 input neurons 30 hidden layer nodes and 1 neuron in the output layer requiring 8000 cycles with training features to achivie the minimum mistakes of the neural net. The neural network design achivies an efficiency of 100% in the discrimination and assignment to each stage of Glaucoma established by the specialist expert. Neuronal network integration proposed in this study, in the functional exploratory test and structural of affectation in the Glaucoma will allow to implement the ability to diagnosis and classification without high requeriments, there is no doubt that Neuronal network integration is an useful tool to interpret the results in terms of glaucomatous affectation, prognosis and therapeutic guidance.

Ficha Técnica del Libro

Número de páginas 364

Autor:

  • Inés Franco SuÁrez-bÁrcena

Categoría:

Formatos Disponibles:

PDF, EPUB, MOBI

¿Cómo obtener el libro?

A continuación, te ofrecemos varias opciones para adquirir el libro.

Valoración

Popular

3.1

21 Valoraciones Totales


Más libros de la categoría Medicina

Informe Mundial Sobre la Discapacidad 2011

Libro Informe Mundial Sobre la Discapacidad 2011

Más de mil millones de personas tienen alguna discapacidad, y algunas tendencias mundiales tales como el envejecimiento de la población y el aumento mundial de las enfermedades crónicas indican que la prevalencia de la discapacidad está aumentando. En todo el mundo, las personas con discapacidad tienen peores resultados sanitarios, peores resultados académicos, menos participación económica y tasas de pobreza más altas que las personas sin discapacidad. Desde que entró en vigor la Convención de Naciones Unidas sobre los Derechos de las Personas con Discapacidad, la atención se ha...

Mi Vida Con Dislexia

Libro Mi Vida Con Dislexia

Scott likes coding and playing basketball. He also has dyslexia. Scott is real and so are his experiences. Learn about his life in this illustrated narrative nonfiction picture book for elementary students. This is a North American Spanish translation of My Life with Dyslexia. Kids are naturally curious about differences and disabilities. Scott sheds light on his life, with the help of experienced children's author Mari Schuh. Scott is not defined by his disorder, but he does some things differently than neurotypical people. Beautiful illustrations and a dyslexic-friendly font promote...

La pedagogía del cuidado

Libro La pedagogía del cuidado

La aportación que este libro realiza posee un alto grado de originalidad y es de una novedad total dada la carencia de trabajos de investigación sobre el curriculum y la formación universitaria que las enfermeras reciben en España. De ese modo se constituye en el primer intento riguroso y sistemático que se lleva a cabo en nuestro país, de reflexión, análisis empírico, teorización y articulación conceptual de la formación de enfermeras, desde el campo disciplinar de la Pedagogía Universitaria. En la obra se lleva a cabo una descripción sistemática y rigurosa de los diferentes...

Ética y modelos de atención a las personas con trastorno mental grave

Libro Ética y modelos de atención a las personas con trastorno mental grave

Los trastornos mentales originan hasta un tercio del total de los contactos con los servicios de salud en los países desarrollados y no desarrollados. En total, al menos el 20% de la población, niños y adultos, presentan cada año síntomas susceptibles de ser diagnosticados como trastorno mental, y hasta un 2,8% sufre algún trastorno mental crónico y discapacitante. En esta publicación se ha tratado de desarrollar algunos aspectos fundamentales del modelo de atención a la salud mental del siglo XXI, modelos y enfoques que ya forman parte de las estrategias y las prácticas de muchos...

Libros Recomendados 2025



Últimas Búsquedas


Categorías Destacadas