Search Results - "Caixinha, Miguel"

Machine Learning Techniques in Clinical Vision Sciences by Caixinha, Miguel, Nunes, Sandrina

“…This review presents and discusses the contribution of machine learning techniques for diagnosis and disease monitoring in the context of clinical vision…”
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Modelling of an ultrasound-based system for cataract detection and classification by Santos, Mario J., Conceição, Inês M, Petralla, Lorena, Perdigão, Fernando, Santos, Jaime, Caixinha, Miguel, Gomes, Marco, Morgado, Miguel

“…Cataract is a cloudiness in the lens of the eye affecting its transparency. Surgical cataract removal is the only therapeutic approach. Phacoemulsification is…”
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Feasibility assessment of the Eye Scan Ultrasound System for cataract characterization and optimal phacoemulsification energy estimation: protocol for a pilot, nonblinded and monocentre study by Petrella, Lorena, Nunes, Sandrina, Perdigão, Fernando, Gomes, Marco, Santos, Mário, Pinto, Carlos, Morgado, Miguel, Travassos, António, Santos, Jaime, Caixinha, Miguel

“…Abstract Background Cataracts are lens opacifications that are responsible for more than half of blindness cases worldwide, and the only treatment is surgical…”
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Adaptação do Questionário Standardized Patient Evaluation of Eye Dryness para Português (SPEED-Vp) numa População Não Clínica by Sanches, Ana Lúcia, Leite, Sara Gisela, Nunes, António, Caixinha, Miguel, Monteiro, Pedro, Nunes, Amélia

“…Introdução: O objetivo deste estudo foi traduzir e adaptar o questionário de avaliação padronizada do paciente com secura ocular para a língua portuguesa, bem…”
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Animal model for in-vivo Nuclear Cataract. Lens hardness and elasticity assessment by Caixinha, Miguel, Santos, Jaime, Santos, Mário, Nunes, Sandrina

“…Age-related cataract is the most frequent cause of blindness in the world being responsible for 48% of blindness and affecting more than 10% of the working…”
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Automatic Cataract Hardness Classification Ex Vivo by Ultrasound Techniques by Caixinha, Miguel, Santos, Mário, Santos, Jaime

“…Abstract To demonstrate the feasibility of a new methodology for cataract hardness characterization and automatic classification using ultrasound techniques,…”
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In-Vivo Automatic Nuclear Cataract Detection and Classification in an Animal Model by Ultrasounds by Caixinha, Miguel, Amaro, Joao, Santos, Mario, Perdigao, Fernando, Gomes, Marco, Santos, Jaime

“…Objective: To early detect nuclear cataract in vivo and automatically classify its severity degree, based on the ultrasound technique, using machine learning…”
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A-scan ultrasound in ophthalmology: A simulation tool by Petrella, Lorena, Perdigão, Fernando, Caixinha, Miguel, Santos, Mário, Lopes, Maria, Gomes, Marco, Santos, Jaime

“…•The developed tool allows simulating ophthalmological applications of A-scan ultrasounds.•The tool allows evaluating diverse error sources associated to…”
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Using Ultrasound Backscattering Signals and Nakagami Statistical Distribution to Assess Regional Cataract Hardness by Caixinha, Miguel, Jesus, Danilo A., Velte, Elena, Santos, Mario J., Santos, Jaime B.

“…This study aims to analyze the protein aggregates spatial distribution for different cataract degrees, and correlate this information with the lens acoustical…”
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Safety Assessment of an A‐Scan Ultrasonic System for Ophthalmic Use by Petrella, Lorena, Fernandes, Paulo, Santos, Mário, Caixinha, Miguel, Nunes, Sandrina, Pinto, Carlos, Morgado, Miguel, Santos, Jaime, Perdigão, Fernando, Gomes, Marco

“…Objectives This study describes the safety assessment of an A‐scan ultrasonic system for ophthalmic use. The system is an investigational medical device for…”
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In Vivo Characterization of Corneal Changes in a Type 1 Diabetic Animal Model by Caixinha, Miguel, Oliveira, Pedro, Aires, Inês D., Ambrósio, António Francisco, Santiago, Ana Raquel, Santos, Mário, Santos, Jaime

“…Diabetes mellitus (DM) is a metabolic disease that affects 9% of the adult population, promoting an increase in glucose concentration that affects the corneal…”
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A-scan ultrasonic system for real time automatic cataract detection by Petrella, Lorena, Pinto, Carlos, Perdigão, Fernando, Gomes, Marco, Santos, Mário, Nunes, Sandrina, Morgado, Miguel, Caixinha, Miguel, Santos, Jaime

“…Cataract is an ocular condition associated to the loss of the normal crystalline lens transparency, and its progression can result in a total loss of vision…”
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New approach for objective cataract classification based on ultrasound techniques using multiclass SVM classifiers by Caixinha, Miguel, Velte, Elena, Santos, Mario, Santos, Jaime B.

“…In the present work, ultrasound A-scan signals were acquired from healthy and cataractous porcine lenses. B-mode images were reconstructed from the collected…”
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In vivo detection of cornea structural changes in an animal model of diabetes mellitus by Pedro Oliveira, J., Caixinha, Miguel, Aires, Ines D., Santiago, Ana Raquel, Santos, Mario, Santos, Jaime

“…Diabetes mellitus (DM) is a group of diseases characterized by chronic hyperglycemia caused by inadequate insulin secretion or impaired insulin action, or…”
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Characterization of scatterers concentration in cataractous lens using Nakagami distribution by ultrasounds by Caixinha, Miguel, Jesus, Danilo, Santos, Mario, Santos, Jaime, Velte, Elena

“…Cataract affects more than 20 million people in the world. Its formation is associated with the increase of protein aggregation in the eye lens. In the early…”
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Ultrasound techniques for lens hardness characterization: A comparison study by Jesus, Danilo, Caixinha, Miguel, Santos, Mário, Santos, Jaime

“…Cataract affects more than 20 million people worldwide and is the leading cause of vision loss. Currently, the phacoemulsification is the most used procedure…”
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Using of the ultrasound frequency dependent attenuation and Nakagami distribution for cataract evaluation by Jesus, D., Velte, E., Caixinha, M., Santos, M., Santos, J.

“…Cataract is a clouding or opacity of the normally transparent crystalline lens of the eye. The cataract formation is associated with the increase of both inner…”
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In Vivo Automatic Cataract Detection and Classification using the Ultrasound Technique by Duarte, Luís Miguel da Luz Caixinha

“…A catarata é uma condição associada à perda da normal transparência do cristalino. A sua progressão pode resultar na perda parcial ou total da visão. O…”
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