Research Papers

Prospects for the diagnosis of breast cancer by noninvasive probing of calcifications using transmission Raman spectroscopy

[+] Author Affiliations
Pavel Matousek

Council for the Central Laboratory of the Research Councils, Rutherford Appleton Laboratory, Central Laser Facility, Oxfordshire OX11 0QX, United Kingdom

Nicholas Stone

Gloucestershire Royal Hospital, Biophotonics Research Group, Great Western Road, Gloucester GL1 3NN, United Kingdom

J. Biomed. Opt. 12(2), 024008 (April 03, 2007). doi:10.1117/1.2718934
History: Received September 20, 2006; Revised November 17, 2006; Accepted December 26, 2006; Published April 03, 2007
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Breast calcifications can be found in both benign and malignant lesions, and the composition of these calcifications can indicate the possible disease state. As current practices such as mammography and histopathology examine the morphology of the specimen, they cannot reliably distinguish between the two types of calcification, which frequently are the only mammographic features that indicate the presence of a cancerous lesion. Raman spectroscopy is an optical technique capable of obtaining biochemical information of a sample in situ. We demonstrate for the first time the noninvasive recovery of Raman spectra of calcified materials buried within a chicken breast tissue slab 16mm thick, achieved using transmission Raman spectroscopy. The spectra of both calcium hydroxyapatite (HAP) and calcium oxalate monohydrate (COM) are obtained and chemically identified. The experimental geometry and gross insensitivity of the Raman signal to the depth of the calcified lesion makes the concept potentially well suited for probing human female breasts, in conjunction with existing mammography or ultrasound, to provide complementary data in the early diagnosis of breast cancer.

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© 2007 Society of Photo-Optical Instrumentation Engineers

Citation

Pavel Matousek and Nicholas Stone
"Prospects for the diagnosis of breast cancer by noninvasive probing of calcifications using transmission Raman spectroscopy", J. Biomed. Opt. 12(2), 024008 (April 03, 2007). ; http://dx.doi.org/10.1117/1.2718934


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