Vilma Doga
Enhancing Optical Coherence Tomography Angiography through GAN-based techniques.
Rel. Kristen Mariko Meiburger, Giulia Rotunno, Massimo Salvi. Politecnico di Torino, Corso di laurea magistrale in Ingegneria Biomedica, 2024
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Abstract
Optical Coherence Tomography Angiography (OCTA) is a powerful imaging technique that provides non-invasive visualization of vascular networks, primarily in the eye but also in the skin. By capturing multiple optical coherence tomography (OCT) B-scans at the same location over time, OCTA identifies motion contrast arising from flowing blood cells. In this thesis, we propose a novel approach to accelerate OCTA data acquisition by leveraging Generative Adversarial Networks (GANs). The primary objective is to generate high-quality OCTA enface images from lower-quality inputs, which are typically derived from only two OCT volumes, compared to the higher-quality images used as ground truth that require four OCT volumes.
The dataset utilized in this thesis includes images obtained from skin samples in both healthy individuals and patients diagnosed with Chronic Venous Insufficiency (CVI)
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