title: Diagnostic potential of Fourier-transform infrared microspectroscopy and advanced computational methods in colon cancer patients.
abstract: Colon cancer is the third leading class of cancer causing increased mortality in developed countries. A polyp is one type of lesion observed in a majority of colon cancer patients. Here, we report a microscopic Fourier transform infrared (FTIR) study of normal, adenomatous polyp and malignant cells from biopsies of 24 patients. The goal of our study was to differentiate an adenomatous polyp from a malignant cell using FTIR microspectroscopy and artificial neural network (ANN) analysis. FTIR spectra and biological markers such as phosphate, RNA/DNA derived from spectra, were useful in identifying normal cells from abnormal ones that consisted of adenomatous polyp and malignant cells. However, the biological markers failed to differentiate between adenomatous polyp and malignant cases. By employing a combination of wavelet features and an ANN based classifier, we were able to classify the different cells as normal, adenomatous polyp and cancerous in a given tissue sample. The percentage of success of classification was 89%, 81%, and 83% for normal, adenomatous polyp, and malignant cells, respectively. A comparison of the method proposed with the pathological method is also discussed.
authors.affiliation: Soroka University Medical Center, Department of Pathology, Beer-Sheva 84105, Israel.
authors.forename: Shmuel
authors.initials: S
authors.lastname: Argov
authors.forename: Jagannathan
authors.initials: J
authors.lastname: Ramesh
authors.forename: Ahmad
authors.initials: A
authors.lastname: Salman
authors.forename: Igor
authors.initials: I
authors.lastname: Sinelnikov
authors.forename: Jed
authors.initials: J
authors.lastname: Goldstein
authors.forename: Hugo
authors.initials: H
authors.lastname: Guterman
authors.forename: Shaul
authors.initials: S
authors.lastname: Mordechai
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis / Q000378:metabolism; D018256:Adenomatous Polyps / Q000175:diagnosis / Q000378:metabolism; D050260:Carbohydrate Metabolism; D003106:Colon / Q000378:metabolism; D003110:Colonic Neoplasms / Q000175:diagnosis* / Q000378:metabolism; D004273:DNA, Neoplasm / Q000378:metabolism; D006801:Humans; D016571:Neural Networks, Computer; D010710:Phosphates / Q000378:metabolism; D012334:RNA, Neoplasm / Q000378:metabolism; D017550:Spectroscopy, Fourier Transform Infrared / Q000379:methods*
chemical_list: D004273:DNA, Neoplasm; D010710:Phosphates; D012334:RNA, Neoplasm