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Raman spectroscopic histology using machine learning for nonalcoholic fatty liver disease
Author(s) -
Helal Khalifa Mohammad,
Taylor James Nicholas,
Cahyadi Harsono,
Okajima Akira,
Tabata Koji,
Itoh Yoshito,
Tanaka Hideo,
Fujita Katsumasa,
Harada Yoshinori,
Komatsuzaki Tamiki
Publication year - 2019
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1002/1873-3468.13520
Subject(s) - nonalcoholic fatty liver disease , histology , histopathology , raman spectroscopy , pathology , liver tissue , artificial intelligence , computer science , medicine , disease , biology , fatty liver , physics , optics
Histopathology requires the expertise of specialists to diagnose morphological features of cells and tissues. Raman imaging can provide additional biochemical information to benefit histological disease diagnosis. Using a dietary model of nonalcoholic fatty liver disease in rats, we combine Raman imaging with machine learning and information theory to evaluate cellular‐level information in liver tissue samples. After increasing signal‐to‐noise ratio in the Raman images through superpixel segmentation, we extract biochemically distinct regions within liver tissues, allowing for quantification of characteristic biochemical components such as vitamin A and lipids. Armed with microscopic information about the biochemical composition of the liver tissues, we group tissues having similar composition, providing a descriptor enabling inference of tissue states, contributing valuable information to histological inspection.