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In cardiology, optical coherence tomography (OCT) has been established as a reference for in vivo intravascular image. OCT provides high-resolution and enables us to visualize accurately vessel intimal layers and stents. The drawback is the time necessary to manually select stent struts and lumen boundary. We developed and evaluated an automatic stent strut detection method to apply to intravascular...
La reperfusion par endoprothèse (stent) est une pratique courante en cardiologie interventionnelle qui n’est pas sans risque car il faut s’assurer de la bonne apposition sur la paroi artérielle. Ce contrôle peut s’effectuer en analysant une séquence d’images endovasculaires acquises par tomographie optique cohérente (OCT). La détection de la lumière et des échos métalliques donne une répartition éparse...
This study aimed at identifying potential correlations between rheological and optical properties of carotid artery rings before and after cryopreservation at different mechanical deformations using experimental and simulation results. Therefore, a uniaxial mechanical test bench was coupled to fibered optical spectroscopes measuring 410 nm excited autofluorescence and 650-850 nm elastically backscattered...
Combining autofluorescence (AF) and Diffuse Reflectance (DR) spectroscopies is supposed to improve diagnosispsila accuracy of early stages of cancer (as well as precancerous stages) which is of great clinical importance. For the present study, we developed a bimodal instrumentation combining spatially resolved AF and DR spectroscopies, and evaluated its ability to distinguish between healthy, inflammatory...
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