Single-axon level automatic segmentation and feature extraction from immuhistochemical images of peripheral nerves

Published: June 25, 2020, 8 p.m.

Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2020.06.24.169557v1?rss=1 Authors: Toth, V., Jayaprakash, N., Abbas, A., Khan, A., Zanos, S., Zanos, T. P. Abstract: Quantitative descriptions of the morphology and structure of peripheral nerves is central in the development of bioelectronic devices interfacing the nerves. While histological procedures and microscopy techniques yield high-resolution detailed images of individual axons, automated methods to extract relevant information at the single-axon level are not widely available. We implemented a segmentation algorithm that allows for subsequent feature extraction in immunohistochemistry (IHC) images of peripheral nerves at the single fiber scale. These features include short and long cross-sectional diameters, area, perimeter, thickness of surrounding myelin and polar coordinates of single axons within a nerve or nerve fascicle. We evaluated the performance of our algorithm using manually annotated IHC images of 27 fascicles of the swine cervical vagus; the accuracy of single-axon detection was 82%, and of the classification of fiber myelination was 89%. Copy rights belong to original authors. Visit the link for more info