Investigation of human pancreatic cancer tissues by Fourier Transform Infrared Hyperspectral Imaging. Issue 4 (14th November 2019)

• Record Type: Journal Article
• Authors: Notarstefano, Valentina; Sabbatini, Simona; Conti, Carla; Pisani, Michela; Astolfi, Paola; Pro, Chiara; Rubini, Corrado; Vaccari, Lisa; Giorgini, Elisabetta
• Is Part Of: Journal of biophotonics. Volume 13:Issue 4(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-11-14
• Subjects: Fourier transform infrared hyperspectral imaging -- multivariate analysis -- pancreatic ductal adenocarcinoma -- pancreatic neuroendocrine tumors -- spectral biomarkers; Photonics -- Periodicals; Optical materials -- Periodicals; Optics -- Periodicals; Medical instruments and apparatus -- Periodicals; 621.3605
• DOI: 10.1002/jbio.201960071
• Languages: English
• ISSNs: 1864-063X

Abstract

Abstract: Fourier‐transform infrared hyperspectral imaging (FTIR‐HSI) provides hyperspectral images containing both morphological and chemical information. It is widely applied in the biomedical field to detect tumor lesions, even at the early stage, by identifying specific spectral biomarkers. Pancreatic neoplasms present different prognoses and are not always easily classified by conventional analyses. In this study, tissue samples with diagnosis of pancreatic ductal adenocarcinoma and pancreatic neuroendocrine tumor were analyzed by FTIR‐HSI and the spectral data compared with those from healthy and dysplastic samples. Multivariate/univariate approaches were complemented to hyperspectral images, and definite spectral markers of the different lesions identified. The malignant lesions were recognizable both from healthy/dysplastic pancreatic tissues (high values of phospholipids and triglycerides with shorter, more branched and less unsaturated alkyl chains) and between each other (different amounts of total lipids, phosphates and carbohydrates). These findings highlight different metabolic pathways characterizing the different samples, well detectable by FTIR‐HSI. Abstract : The Fourier Transform Infrared Hyperspectral Imaging (FTIR‐HSI) was coupled with multivariate analysis to identify the spectral features characterizing the pancreatic ductal adenocarcinoma and the pancreatic neuroendocrine tumor. Specific spectral markers able to discriminate between them, and also with respect to dysplastic and healthy pancreatic tissues, were defined.