Feasibility of Terahertz Imaging for Discrimination of Human Hepatocellular Carcinoma

Overview

Journal World J Gastrointest Oncol

Publisher Baishideng Publishing Group

Date 2019 Feb 22

PMID 30788041

Citations 5

Authors

Feng Duan

Yu-Ye Wang

De-Gang Xu

Jia Shi

Lin-Yu Chen

Li Cui

Yan-Hua Bai

Yong Xu

Jing Yuan

Chao Chang

Affiliations

Soon will be listed here.

Abstract

Background: Hepatocellular carcinoma (HCC) is one of the most common malignant tumors worldwide, and novel methods for early/rapid diagnosis of HCC are needed. Terahertz (THz) spectroscopy is considered to have the potential to distinguish between normal liver tissue and HCC tissue; however, there are few reports on it. We conduct this observational study to explore the feasibility of THz imaging for the diagnosis of HCC.

Aim: To evaluate the feasibility of THz for discriminating between HCC and normal liver tissues using fresh tissue specimens obtained from HCC patients who had undergone surgery.

Methods: Normal liver tissue and HCC tissue were cryosectioned into 50 μm-thick slices and placed on cover glass. Two adjacent tissue sections were separated subjected to histopathological examination by hematoxylin and eosin staining or THz transmission examination, and THz images were compared with pathologically mapped images. We determined the typical tumor and normal liver tissue regions by pathological examination; the corresponding areas of adjacent sections were examined by THz transmission.

Results: The transmission rate of HCC tissue was 0.15-0.25, and the transmission rate of typical HCC tissue was about 0.2. THz transmittance in normal liver tissue is slightly higher than 0.4, but there were many influencing factors, including the degree of liver cirrhosis, fat components, ice crystals in frozen sections, and apoptosis.

Conclusion: In conclusion, this study shows that THz imaging can detect HCC tissue. Further research will yield more detailed data of the THz transmission rates of HCC tissue with different degrees of differentiation.

Citing Articles

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