title: Spectral-domain low coherence interferometry/optical coherence tomography system for fine needle breast biopsy guidance.
abstract: A novel technology and instrumentation for fine needle aspiration (FNA) breast biopsy guidance is presented. This technology is based on spectral-domain low coherence interferometry (SD-LCI). The method, apparatus, and preliminary in vitro/in vivo results proving the viability of the method and apparatus are presented in detail. An advanced tissue classification algorithm, preliminarily tested on breast tissue specimens and a mouse model of breast cancer is presented as well. Over 80% sensitivity and specificity in differentiating all tissue types and 93% accuracy in differentiating fatty tissue from fibrous or tumor tissue was obtained with this technology and apparatus. These results suggest that SD-LCI could help for more precise needle placement during the FNA biopsy and therefore could substantially reduce the number of the nondiagnostic aspirates and improve the sensitivity and specificity of the FNA procedures.
authors.affiliation: Physical Sciences, Inc., 20 New England Business Center Drive, Andover, Massachusetts 01810, USA. iftimia@psicorp.com
authors.forename: N V
authors.initials: NV
authors.lastname: Iftimia
authors.forename: M
authors.initials: M
authors.lastname: Mujat
authors.forename: T
authors.initials: T
authors.lastname: Ustun
authors.forename: R D
authors.initials: RD
authors.lastname: Ferguson
authors.forename: V
authors.initials: V
authors.lastname: Danthu
authors.forename: D X
authors.initials: DX
authors.lastname: Hammer
mesh_terms: D044963:Biopsy, Fine-Needle / Q000295:instrumentation*; D001940:Breast / Q000473:pathology*; D001943:Breast Neoplasms / Q000473:pathology*; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D007368:Interferometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D025321:Surgery, Computer-Assisted / Q000295:instrumentation*; D041623:Tomography, Optical Coherence / Q000295:instrumentation*