TCRT December 2003

category image Volume 2
No. 6 (p 487-594)
December 2003
ISSN 1533-0338

Instrumentation for Multi-modal Spectroscopic Diagnosis of Epithelial Dysplasia (p. 505-514)

Reflectance and fluorescence spectroscopies have shown great promise for early detection of epithelial dysplasia. We have developed a clinical reflectance spectrofluorimeter for multimodal spectroscopic diagnosis of epithelial dysplasia. This clinical instrument, the FastEEM, collects white light reflectance and fluorescence excitation-emission matrices (EEM?s) within a fraction of a second. In this paper we describe the FastEEM instrumentation, designed for collection of multi-modal spectroscopic data. We illustrate its performance using tissue phantoms with well defined optical properties and biochemicals of known fluorescence properties. In addition, we discuss our plans to develop a system that combines a multi-spectral imaging device for wide area surveillance with this contact probe device.

James W. Tunnell, Ph.D.1
Adrien E. Desjardins, B.S.1
Luis Galindo, B.S.1
Irene Georgakoudi, Ph.D.2
Sasha A. McGee, B.S.1
Jelena Mirkovic, B.S.1
Markus G. Mueller, Ph.D.1
Jon Nazemi, M.S.1
Freddy T. Nguyen, B.S.1
Adam Wax, Ph.D.3
Qingguo Zhang, Ph.D.1
Ramachandra R. Dasari, Ph.D.1
Michael S. Feld, Ph.D.1,*

1G.R. Harrison Spectroscopy Laboratory
Massachusetts Institute of Technology
77 Massachusetts Ave., Bldg 6-014
Cambridge, MA 02139
2Wellman Laboratories of Photomedicine
Department of Dermatology
Massachusetts General Hospital
40 Blossom Street, WEL 224
Boston, MA 02114
3Department of Biomedical Engineering
Duke University
Box 90281
Durham, NC 27708-0281
*msfeld@mit.edu

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