Browsing by Subject "Imaging systems in medicine"

Now showing items 1-20 of 130

    • A comparison study of U-Net based methods for brain tumor segmentation 

      Ferrando Garrido, Albert (Universitat Politècnica de Catalunya, 2023-10-19)
      Master thesis
      Open Access
      Covenantee:   Universitat de Barcelona
      The brain tumor segmentation (BraTS) Challenge is an international competition that focuses on the task of automated segmentation of the different parts of brain tumors in magnetic resonance imaging (MRI) scans. U-Net ...

    • A prostate MRI segmentation tool based on active contour models using a gradient vector flow 

      Rodríguez, Joaquín; Ochoa Ruíz, Gilberto; Mata Miquel, Cristian (Multidisciplinary Digital Publishing Institute, 2020-09-04)
      Article
      Open Access
      Medical support systems used to assist in the diagnosis of prostate lesions generally related to prostate segmentation is one of the majors focus of interest in recent literature. The main problem encountered in the diagnosis ...

    • A scalable approach to T2-MRI colon segmentation 

      Orellana Bech, Bernat; Monclús Lahoya, Eva; Navazo Álvaro, Isabel; Brunet Crosa, Pere; Bendezú García, Álvaro; Azpiroz Vidaur, Fernando (2020-07-01)
      Article
      Open Access
      The study of the colonic volume is a procedure with strong relevance to gastroenterologists. Depending on the clinical protocols, the volume analysis has to be performed on MRI of the unprepared colon without contrast ...

    • A simulation platform for magnetic resonance imaging of the developing fetal brain (FaBiAN v2.0) 

      Le Boeuf Fló, Andrés (Universitat Politècnica de Catalunya, 2022-07-05)
      Bachelor thesis
      Open Access
      Covenantee:   Fondation ProTechno / Schweizerischer Nationalfonds zur Förderung der wissenschaftlichen Forschung
      Magnetic resonance imaging is commonly used as a complement to the ultrasound gold-standard to investigate equivocal patterns in the developing fetal brain. However, stochastic motion of the fetus may alter the image quality ...

    • Active deep learning for medical imaging segmentation 

      Górriz Blanch, Marc (Universitat Politècnica de Catalunya, 2017)
      Bachelor thesis
      Open Access
      Covenantee:   Institut national polytechnique de Toulouse
      This thesis proposes a novel active learning framework capable to train effectively a convolutional neural network for semantic segmentation of medical imaging, with a limited amount of training labeled data. Our approach ...

    • Adaptive segmentation and mask-specific Sobolev inpainting of specular highlights for endoscopic images 

      Alsaleh, Samar M.; Avilés Rivero, Angélica; Sobrevilla Frisón, Pilar; Casals Gelpí, Alicia; Hahn, James K. (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference lecture
      Restricted access - publisher's policy
      Minimally invasive surgical and diagnostic systems rely on endoscopic images of internal organs to assist medical tasks. Specular highlights are common on those images due to the strong reflectivity of the mucus layer on ...

    • An UWB Tapered Slot Vivaldi Antenna (TSA) with improved characterestics 

      Akazzim, Youness; Kanjaa, Mohammed; El Mrabet, Otman; Jofre Roca, Lluís; Essaaidi, Mohamed (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference lecture
      Restricted access - publisher's policy
      In this paper, an UWB Tapered Slot Vivaldi Antenna (TSA) is presented. The proposed TSA is optimized in order to increase the bandwidth and ensure a good impedance matching at low and bandwidth frequencies while respecting ...

    • Analysis and segmentation of KI-67 immunohistochemistry images for breast cancer diagnosis 

      Espina i Boronat, Maria (Universitat Politècnica de Catalunya, 2022-07-05)
      Master thesis
      Open Access
      For breast cancer diagnosis, the computation of the KI-67 score is a useful metric to define patient?s treatment. For a proper computation of this score, tumour and stroma areas have to be distinguished in KI-67 images. ...

    • Analysis of radiation dose using DICOM metadata 

      Sorrell Meriño, Ana Paula (Universitat Politècnica de Catalunya, 2022-06-28)
      Bachelor thesis
      Open Access
      Covenantee:   Universal Projects and Tools
      La informació és el recurs més valuós mundialment [1], i és possible trobar-la a tot arreu. En el cas de les imatges mèdiques, la informació significa no només imatges de giga píxels, sinó que també inclou metadades i ...

    • Analysis of the dynamics of gray matter reduction in Alzheimers disease 

      Aduriz Berasategi, Asier (Universitat Politècnica de Catalunya, 2016-05-13)
      Bachelor thesis
      Open Access
      This project attempts to study the cerebral atrophy patterns in gray matter across the different stages of the Alzheimer’s Disease (AD), or more specifically, along the entire AD continuum, in a voxelwise approach. To this ...

    • Analysis of the respiratory movement and its effects on the vertebrae using depth camera technology 

      Fuentes Gómez, Irene (Universitat Politècnica de Catalunya, 2022-07-04)
      Bachelor thesis
      Open Access
      Covenantee:   IMT Atlantique
      Nowadays, computer-assisted surgery is becoming more and more common. In the case of spinal surgery, there are techniques to facilitate navigation in operations such as inserting markers in the vertebrae, which adds a ...

    • Anàlisi dels resultats de l’aplicació de la planificació 3D de cirurgies de distracció del maxil·lar superior. 

      Ayats Soler, Marta (Universitat Politècnica de Catalunya, 2020-02-03)
      Master thesis
      Restricted access - author's decision
      La cirurgia de distracció del maxil·lar superior s’ha descrit per diversos autors com el procediment estàndard per el tractament de la hipoplàsia maxil·lar servera en pacients amb fissura llabipalatina. Altres autors han ...

    • Anàlisi exploratòria de dades mèdiques 

      Bosch Llufriu, Júlia (Universitat Politècnica de Catalunya, 2021-01-25)
      Bachelor thesis
      Open Access
      La motilitat del còlon és un factor que complica l'anàlisi d'aquest òrgan. Degut a les dificultats derivades dels sistemes d'extracció de dades, fins ara s'ha conegut poc sobre les relacions entre les dietes i el comportament ...

    • Análisis de textura de imágenes mamográficas con aplicación a diagnostico asistido 

      Villaplana Gómez, Daniel (Universitat Politècnica de Catalunya, 2016-05)
      Bachelor thesis
      Open Access
      Covenantee:   Instituto Tecnológico y de Estudios Superiores de Monterrey
      In this project a first prototype have been created for noticing the differences between the textures in a mammography image so we can detect breast cancer. The image is divided in blocks, those will be filtered by ...

    • Aplicació de tècniques de generació de dades sintètiques en el camp de la imatge mèdica per l’entrenament d’algorismes d’Intel·ligència artificial 

      Aznar Roig, Júlia (Universitat Politècnica de Catalunya, 2023-07-04)
      Bachelor thesis
      Restricted access - confidentiality agreement
      Covenantee:   Fundació TIC Salut Social / Politecnico di Milano
      El següent projecte de recerca té com a objectiu facilitar l’accés i l’ús d’imatges mèdiques, en específic imatges histopatològiques, als científics, enginyers i professionals de la salut mitjançant la generació d’imatges ...

    • Application of fuzzy techniques to biomedical images 

      Mattioli Aramburu, Gabriel (Universitat Politècnica de Catalunya, 2012-06-21)
      Master thesis
      Open Access

    • Artificial intelligence approaches for image segmentation and classification in medical imaging analysis 

      Muñoz García, Noelia (Universitat Politècnica de Catalunya, 2024-01-29)
      Bachelor thesis
      Open Access
      Tot i que el càncer ossi pediàtric és relativament poc freqüent, va ser la tercera causa de mort infantil el 2020. En aquest context, destaquen dues formes prevalents: l'osteosarcoma i el sarcoma d'Ewing, afectant els ...

    • Automated analysis of image sequences in relation to malaria 

      Gil Aragones, María (Universitat Politècnica de Catalunya, 2017-06)
      Bachelor thesis
      Open Access
      Covenantee:   Danmarks tekniske universitet
      Malaria is a well known disease that affects nearly half of the population of the world. Besides, it has been widely accepted that microcirculation plays an important role in malaria pathogenesis. The use of Cytocam-IDF ...

    • Automated corneal endothelium image segmentation in the presence of cornea guttata via convolutional neural networks - 115110H 

      Sierra Bravo, Juan Sebastián; Pineda, Jesús; Viteri Coronel, Eduardo; Rueda Latorre, Daniela; Tibaduiza Vargas, Beatriz Eugenia; Berrospi, Rubén; Tello, Alejandro; Galvis Ramírez, Virgilio; Volpe, Giovanni; Millán Garcia-Varela, M. Sagrario; Romero Pérez, Lenny Alexandra; Marrugo Hernandez, Andrés Guillermo (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2020)
      Conference report
      Restricted access - publisher's policy
      Automated cell counting in in-vivo specular microscopy images is challenging, especially in situations where single-cell segmentation methods fail due to pathological conditions. This work aims to obtain reliable cell ...

    • Automated Diagn of Symptomatic and Asymptomatic Achilles Tendon Ruptures using CT Images and AI 

      Mateo Navarro, Ramon (Universitat Politècnica de Catalunya, 2023-06-27)
      Master thesis
      Open Access