Wide-field quantitative micro-elastography of human breast tissue

Wes M. Allen, Kelsey M. Kennedy, Qi Fang, Lixin Chin, Andrea Curatolo, Lucinda Watts, Renate Zilkens, Synn Lynn Chin, Benjamin F. Dessauvagie, Bruce Latham, Christobel M. Saunders, Brendan F. Kennedy

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Currently, 20-30% of patients undergoing breast-conserving surgery require a second surgery due to insufficient surgical margins in the initial procedure. We have developed a wide-field quantitative micro-elastography system for the assessment of tumor margins. In this technique, we map tissue elasticity over a field-of-view of ~46 × 46 mm. We performed wide-field quantitative micro-elastography on thirteen specimens of freshly excised tissue acquired from patients undergoing mastectomy. We present wide-field optical coherence tomography (OCT) images, qualitative (strain) micro-elastograms and quantitative (elasticity) micro-elastograms, acquired in 10 minutes. We demonstrate that wide-field quantitative micro-elastography can extend the range of tumors visible using OCT-based elastography by providing contrast not present in either OCT or qualitative microelastography and, in addition, can reduce imaging artifacts caused by a lack of contact between tissue and the imaging window. Also, we describe how the combined evaluation of OCT, qualitative micro-elastograms and quantitative micro-elastograms can improve the visualization of tumor.

Original languageEnglish
Article number#315501
Pages (from-to)1082-1096
Number of pages15
JournalBiomedical Optics Express
Volume9
Issue number3
DOIs
Publication statusPublished - 1 Mar 2018

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