Tecnología Médica

Tecnología Médica

Estructura superficial de los implantes de PEEK (polieteretercetona)
24/11/2020 - Introducción: La introducción de polieter - etercetona en la clínica odontológica, ha permitido importantes avances. Algunos investigadores reportan que el PEEK posee...
Cultivos celulares sobre implantes de PEEK con y sin acción de láser
10/11/2020 - OBJETIVOS: A partir del conocimiento que el laser de baja potencia posee un efecto estimulante sobre el metabolismo celular, se desea analizar el desarrollo de células derivadas de pulpa...
Técnica Bett: medición de nanopartículas de PEEK para implantes dentales
10/11/2020 - OBJETIVO: El objetivo de este trabajo fue medir las nanopartículas de polieter-etercetona (PEEK) en polvo, mediante la técnica Bett (con diferencia de presiones, mediante...
Sensibilidad antibiótica del Actinomyces naeslundii adherido a implantes de polieter-etercetona (PEEK)
10/11/2020 - El objetivo de este trabajo fue observar a que tipo de antibiótico respondía con más sensibilidad el Actinomyces naeslundii. Para ello, se activó una cepa de este...
Nanoestructuras tubulares de TiO2 para implantes médicos
16/10/2020 - La utilización de prótesis o implantes biomédicos para suplantar la función original de algún componente del sistema biológico humano es un área en...
Bioactive Silica Based Coatings on Stainless Steel Implants
16/10/2020 - En el campo de los implantes corporales, la superficie juega un papel importante en la respuesta del tejido a la presencia de material extraño. La modificación de la superficie...
Regional lung perfusion analysis in experimental ARDS by electrical impedance and computed tomography
06/10/2020 - Electrical impedance tomography is clinically used to trace ventilation related changes in electrical conductivity of lung tissue. Estimating regional pulmonary perfusion using electrical impedance...
SAR Tomography via Nonlinear Blind Scatterer Separation
06/10/2020 - Layover separation has been fundamental to many synthetic aperture radar applications, such as building reconstruction and biomass estimation. Retrieving the scattering profile along the mixed...
An Efficient Retrieval System for Biomedical Images Based on Radial Associated Laguerre Moments
06/10/2020 - The ability of any retrieval system to extract features by using its feature descriptor is the primary criterion to measure its efficiency. In this paper a novel technique for feature extraction...
Multiscale Constrained Inversion Method for Direct Current Resistivity Tomography Based on Haar Wavelet Transform
06/10/2020 - Smoothness constrained inversion dominates the field of geoelectrical imaging. However, the resulting smooth images are unrealistic. In the absence of a priori underground information, the actual...
Supervised Descent Learning for Thoracic Electrical Impedance Tomography
06/10/2020 - Objective: The absolute image reconstruction problem of electrical impedance tomography (EIT) is ill-posed. Traditional methods usually solve a nonlinear least squares problem with some kind of...
SiameseGAN: A Generative Model for Denoising of Spectral Domain Optical Coherence Tomography Images
06/10/2020 - Optical coherence tomography (OCT) is a standard diagnostic imaging method for assessment of ophthalmic diseases. The speckle noise present in the high-speed OCT images hampers its clinical utility,...
Two-Round Symmetric Cryptography for Medical Image Infosecurity Against-Hacker Attacks in a Picture Archiving and Communication System
06/10/2020 - Digitalizing medical images, such as images in ultrasonography or mammography, or magnetic resonance imaging, can be applied for telemedicine applications in telediagnosis and telesurgery, and can...
Shallow 3D CNN for Detecting Acute Brain Hemorrhage from Medical Imaging Sensors
06/10/2020 - Successive layers in convolutional neural networks (CNN) extract different features from input images. Applications of CNNs to detect abnormalities in the 2D images or 3D volumes of body organs have...
Spatial Pyramid Pooling with 3D Convolution Improves Lung Cancer Detection
06/10/2020 - Lung cancer is the leading cause of cancer deaths. Low-dose computed tomography (CT) screening has been shown to significantly reduce lung cancer mortality but suffers from a high false positive...
Depth of interaction measurements based on rectangular light sharing window technology and nine-crystals-to-one-SiPM coupling method
06/10/2020 - Depth of interaction (DOI) decoding capability shows great application potential for positron emission tomography (PET), especially for high-resolution small-animal PET or long axial field of view...
Performance Characteristics of Long Axial Field-of-View PET Scanners with Axial Gaps
06/10/2020 - The introduction of long (>60 cm) axial field-of-view (LAFOV) PET systems has shown their potential for clinical and research applications. LAFOV scanners are expensive, so there is interest in...
Estimation of Moisture Content Distribution in Porous Foam Using Microwave Tomography With Neural Networks
06/10/2020 - The use of microwave tomography (MWT) in an industrial drying process is demonstrated in this feasibility study with synthetic measurement data. The studied imaging modality is applied to estimate...
Internal-Illumination Photoacoustic Tomography Enhanced by a Graded-scattering Fiber Diffuser
06/10/2020 - The penetration depth of photoacoustic imaging in biological tissues has been fundamentally limited by the strong optical attenuation when light is delivered externally through the tissue surface....
Parallel Deep Learning Algorithms with Hybrid Attention Mechanism for Image Segmentation of Lung Tumors
06/10/2020 - At present, medical images have played a more and more important role in clinical treatment. Lung images provides an important reference for doctors to make a diagnosis. Especially for surgical...
A high-quality photon-counting CT technique based on weight adaptive total-variation and image-spectral tensor factorization for small animals imaging
06/10/2020 - Photon-counting X-ray computed tomography (CT) has been attracting great attentions in tissue characterization, material discrimination and so on. The emitting x-ray energy spectrum cutting into...