title: Time reversal optical tomography: locating targets in a highly scattering turbid medium.
abstract: A time reversal optical tomography (TROT) method for near-infrared (NIR) diffuse optical imaging of targets embedded in a highly scattering turbid medium is presented. TROT combines the basic symmetry of time reversal invariance and subspace-based signal processing for retrieval of target location. The efficacy of TROT is tested using simulated data and data obtained from NIR imaging experiments on absorptive and scattering targets embedded in Intralipid-20% suspension in water, as turbid medium. The results demonstrate the potential of TROT for detecting and locating small targets in a turbid medium, such as, breast tumors in early stages of growth.
authors: Physics Department, The City College of the City University of New York, 160 Convent Ave, New York, NY 10031, USA. bwu@sci.ccny.cuny.edu
authors: Binlin
authors: B
authors: Wu
authors: W
authors: W
authors: Cai
authors: M
authors: M
authors: Alrubaiee
authors: M
authors: M
authors: Xu
authors: S K
authors: SK
authors: Gayen
mesh_terms: D000042:Absorption; D000465:Algorithms; D001940:Breast / Q000473:pathology; D003198:Computer Simulation; D005260:Female; D006801:Humans; D008027:Light; D009391:Nephelometry and Turbidimetry; D012542:Scattering, Radiation; D013997:Time Factors; D041622:Tomography, Optical / Q000379:methods*