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5. Methods and Techniques

Author

Iwanicka, Magdalena, primary, Sylwestrzak, Marcin, additional, Szkulmowska, Anna, additional, and Targowski, Piotr, additional

Published
2019
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11. Optical Coherence Tomography (OCT)

Author

Iwanicka, Magdalena, Sylwestrzak, Marcin, Szkulmowska, Anna, and Targowski, Piotr

Subjects
Physics, Optics, noninvasive examination, Optical coherence tomography, medicine.diagnostic_test, business.industry, medicine, business, varnish, 3. Good health
Abstract

The fundamentals of the OCT technique are given and the details of its application to the research presented in this book.

Published
2020

28. Analysis of posterior retinal layers in spectral optical coherence tomography images of the normal retina and retinal pathologies

Author

Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology. Research Laboratory of Electronics, Srinivasan, Vivek J., Fujimoto, James G., Szkulmowski, Maciej, Wojtkowski, Maciej, Sikorski, Bartosz, Bajraszewski, Tomasz, Szkulmowska, Anna, Kaluzny, Jakub J., Kowalczyk, Andrzej, Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology. Research Laboratory of Electronics, Srinivasan, Vivek J., Fujimoto, James G., Szkulmowski, Maciej, Wojtkowski, Maciej, Sikorski, Bartosz, Bajraszewski, Tomasz, Szkulmowska, Anna, Kaluzny, Jakub J., and Kowalczyk, Andrzej

Abstract

We present a computationally efficient, semiautomated method for analysis of posterior retinal layers in three-dimensional (3-D) images obtained by spectral optical coherence tomography (SOCT). The method consists of two steps: segmentation of posterior retinal layers and analysis of their thickness and distance from an outer retinal contour (ORC), which is introduced to approximate the normal position of external interface of the healthy retinal pigment epithelium (RPE). The algorithm is shown to effectively segment posterior retina by classifying every pixel in the SOCT tomogram using the similarity of its surroundings to a reference set of model pixels from user-selected area(s). Operator intervention is required to assess the quality of segmentation. Thickness and distance maps from the segmented layers and their analysis are presented for healthy and pathological retinas.

Published
2014

50. Spectral Optical Coherence Tomography

Author

Kaluzny, Bartłomiej J, primary, Kałużny, Jakub J, additional, Szkulmowska, Anna, additional, Gorczyńska, Iwona, additional, Szkulmowski, Maciej, additional, Bajraszewski, Tomasz, additional, Wojtkowski, Maciej, additional, and Targowski, Piotr, additional

Published
2006
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