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Sarunic, M.V., Choma, M.A., Yang, C. and Izatt, J.A. (2005) Instantaneous complex conjugate resolved spectral domain and swept-source OCT using 3 × 3 fiber couplers. Optics Express, 13, 957-967. doi:10.1364/OPEX.13.000957

has been cited by the following article:

• TITLE: Imaging of arterial plaque by quadrature swept-source optical coherence tomography with signal to noise ratio enhancements

  AUTHORS: Youxin Mao, Costel Flueraru, Shoude Chang

  KEYWORDS: Optical Coherence Tomography; Arterial Plaque; Medical and Biological Imaging; Semiconductor Optical Amplifier

  JOURNAL NAME: Journal of Biomedical Science and Engineering, Vol.4 No.12, December 9, 2011

  ABSTRACT: Arterial plaque from a myocardial infarction-prone Watanabe heritable hyperlipidemic (WHHLMI) rabbit is visualized and characterized using a signal to noise ratio enhanced swept-source optical coherence tomography system with a quadrature interferometer (QSS-OCT). A semiconductor optical amplifier is used in the sample arm to amplify the weak signal scattered from arterial plague. Signal to noise ratio improvement are demonstrated in our QSS-OCT system. This finding results into an increase of the penetration depth possible in OCT images, from 1 mm to 2 mm. Preliminary results show that vulnerable plaque with fibrous cap, macrophage accumulations and calcification in the arterial tissue are measurable with our QSS-OCT system.