Open AccessRaman spectroscopy: a real-time tool for identifying microcalcifications during stereotactic breast core needle biopsies
Author(s) -
Anushree Saha,
Ishan Barman,
Narahara Chari Dingari,
Sasha McGee,
Zoya Volynskaya,
Luis H. Galindo,
W. Liu,
Donna Plecha,
Nina Klein,
R. R. Dasari,
Maryann Fitzmaurice
Publication year - 2011
Publication title -
biomedical optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.362
H-Index - 86
ISSN - 2156-7085
DOI - 10.1364/boe.2.002792
Subject(s) - raman spectroscopy , breast cancer , mammography , medicine , biopsy , breast imaging , stereotactic biopsy , breast tissue , radiology , core biopsy , breast biopsy , pathology , nuclear medicine , cancer , optics , physics
Microcalcifications are an early mammographic sign of breast cancer and a target for stereotactic breast needle biopsy. We present here a Raman spectroscopic tool for detecting microcalcifications in breast tissue based on their chemical composition. We collected ex vivo Raman spectra from 159 tissue sites in fresh stereotactic breast needle biopsies from 33 patients, including 54 normal sites, 75 lesions with microcalcifications and 30 lesions without microcalcifications. Application of our Raman technique resulted in a positive predictive value of 97% for detecting microcalcifications. This study shows that Raman spectroscopy has the potential to detect microcalcifications during stereotactic breast core biopsies and provide real-time feedback to radiologists, thus reducing non-diagnostic and false negative biopsies.