Improving liver fibrosis diagnosis based on forward and backward second harmonic generation signals

The correlation of forward second harmonic generation (SHG) signal and backward SHG signal in different liver fibrosis stages was investigated. We found that three features, including the collagen percentage for forward SHG, the collagen percentage for backward SHG, and the average intensity ratio o...

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Bibliographic Details
Main Authors: Peng, Qiwen, Zhuo, Shuangmu, Yu, Hanry, So, Peter T. C.
Other Authors: Massachusetts Institute of Technology. Department of Biological Engineering
Format: Article
Published: American Institute of Physics (AIP) 2019
Online Access:http://hdl.handle.net/1721.1/119881
https://orcid.org/0000-0003-4698-6488
Description
Summary:The correlation of forward second harmonic generation (SHG) signal and backward SHG signal in different liver fibrosis stages was investigated. We found that three features, including the collagen percentage for forward SHG, the collagen percentage for backward SHG, and the average intensity ratio of two kinds of SHG signals, can quantitatively stage liver fibrosis in thioacetamide-induced rat model. We demonstrated that the combination of all three features by using a support vector machine classification algorithm can provide a more accurate prediction than each feature alone in fibrosis diagnosis.