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Journal of Biomedical Optics

Fourier transform infrared microspectroscopy as a quantitative diagnostic tool for assignment of premalignancy grading in cervical neoplasia
Author(s): Shlomo Mark; R. K. Sahu; Keren Kantarovich; A. Podshyvalov; Hugo Guterman; Jed Goldstein; Ramesh Jagannathan; Shaul Mordechai
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Paper Abstract

The early diagnosis and proper identification of cervical squamous intraepithelial lesions plays an important role in a good prognosis for the patient. However, the present practice of screening based on PAP (Papanicolaou) smear and histopathology makes it tedious and prone to human errors. We assess the validity of FTIR microspectroscopy (FTIR-MSP) of biopsies as a method to properly assign the correct stage of premalignancy in patients with symptoms of cervical intraepithelial neoplasia. For the first time we evaluate the biopsies based on the FTIR spectra for different grades of neoplasia in tandem with probabilistic neural networks (PNNs) and histopathology. The results show that the grading of neoplasia based on FTIR-MSP and a PNN differentiates the normal from premalignant with a high level of accuracy. The false positive identification of the normal as cervical intraepithelial neoplasia 1 (CIN1), CIN2, and CIN3 patients is 9.04, 0.01, and 0.01%, respectively. The false negative identification of CIN2 patients as normal and CIN1 patients is 0.01 and 4.4%, respectively. Similarly, the false negative identification of CIN3 patients as normal, CIN1, and CIN2 is 0.14, 6.99, and 9.61%, respectively. The small errors encountered in the grading are comparable to current methods, encouraging advanced studies for the development of mechanized equipment for the diagnosis and grading of premalignant cervical neoplasia.

Paper Details

Date Published: 1 May 2004
PDF: 10 pages
J. Biomed. Opt. 9(3) doi: 10.1117/1.1699041
Published in: Journal of Biomedical Optics Volume 9, Issue 3
Show Author Affiliations
Shlomo Mark, Ben-Gurion Univ. of the Negev (Israel)
R. K. Sahu, Ben Gurion Univ. (Israel)
Keren Kantarovich, Ben-Gurion Univ. of the Negev (Israel)
A. Podshyvalov, Soroka Univ. Medical Ctr. (Israel)
Hugo Guterman, Ben-Gurion Univ. of the Negev (Israel)
Jed Goldstein, Soroka Univ. Medical Ctr. (Israel)
Ramesh Jagannathan, Oak Ridge National Lab. (United States)
Shaul Mordechai, Ben-Gurion Univ. of the Negev (Israel)

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