Search for dissertations about: "non-invasive diagnostics"

Showing result 21 - 25 of 48 swedish dissertations containing the words non-invasive diagnostics.

  2. 21. Deep Learning Methods for Classification of Glioma and its Molecular Subtypes

    Author : Muhaddisa Barat Ali; Chalmers tekniska högskola; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; 1p 19q codeletion; generative adversarial network; convolutional neural network; glioma subtype classification; IDH mutation.; Deep learning; cycleGAN; convolutional autoencoder;

    Abstract : Diagnosis and timely treatment play an important role in preventing brain tumor growth. Clinicians are unable to reliably predict LGG molecular subtypes from magnetic resonance imaging (MRI) without taking biopsy. Accurate diagnosis prior to surgery would be important. READ MORE

  4. 22. Non-linear Optical Microscopy and Spectroscopy for Biomedical Studies

    Author : Stina Guldbrand; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Two-Photon Excitation Microscopy; Fluorescence Correlation Spectroscopy; Multiphoton Luminescence; Human Skin; Gold nanoparticles;

    Abstract : This thesis is based on the application of non-linear optical microscopy and spectroscopy techniques within biomedical research. Non-linear optical microscopy gives the possibility of exciting fluorophores using near infrared light. READ MORE

  5. 23. Photodynamic therapy and laser-based diagnostic studies of malignant tumours

    Author : Ingrid Wang; Medicinskt lasercentrum; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; protoporphyrin IX PpIX ; delta -aminolevulinic acid ALA ; photosensitizer; basal cell carcinoma BCC ; Photodynamic therapy PDT ; laser-induced fluorescence LIF ; Cytology; oncology; cancerology; Cytologi; onkologi; cancer;

    Abstract : Two non-thermal regimens of light interaction with biological tissue, that are in a natural way connected, are discussed in the present thesis. These are photodynamic therapy (PDT) for the treatment of malignant tumours and laser-induced fluorescence (LIF) for tissue characterization. READ MORE

  6. 24. Studies on molecular and immune signatures for detection of pancreatic cancer and COVID-19

    Author : Hassan Alkharaan; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Background and objectives: Etiological factors and accurate diagnostic biomarkers have remained elusive to pancreatic cancer, a disease with > 90% five-years mortality rate. The recent understanding of microbiome interaction with host organs has opened new research avenues on the potential role of microbiota in the tumor microenvironment. READ MORE

  7. 25. Optical Analysis of biological media - continuous wave diffuse spectroscopy

    Author : Jan Sørensen Dam; Atomfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; spatially resolved diffuse reflectance; in vitro diffuse spectroscopy; continuous wave techniques; Nuclear physics; multivariate data analysis.; Kärnfysik; Fysik; Physics; Medicin människa och djur ; Medicine human and vertebrates ; Monte Carlo simulations; light propagation models; multiple scattering; Tissue optics; tissue optical properties; Fysicumarkivet A:2000:Sörensen Dam;

    Abstract : The main topic of this thesis is real-time quantification of relevant chromophores and light scattering elements in biological media. The presented methods and instrumentation are based on continuous wave (steady-state) optical measurements of (a) spatially-resolved diffuse reflectance from bulk media and (b) combined spatially-resolved and goniometric measurements of re-emitted light from thin samples. READ MORE