Abstract
We consider the problem of using the photoacoustic effect to image the optical properties of tissue. A region of tissue is assumed to be illuminated by frequency-modulated light that creates an ultrasonic wave of the same frequency. This wave is detected on a passive array of receiving transducers distributed over a circular or a cylindrical aperture. If the frequency is swept over a broad band (or, equivalently, if we illuminate with a pulse and Fourier transform the response), then a spatial map of a parameter that depends on the optical absorption coefficient of the tissue can be recovered. Analytical inversion formulas are derived in both two and three dimensions. The effects of band-limited data on image quality are also investigated.
© 2003 Optical Society of America
Full Article | PDF ArticleMore Like This
Thomas Jetzfellner, Amir Rosenthal, Andreas Buehler, Alexander Dima, Karl-Hans Englmeier, Vasilis Ntziachristos, and Daniel Razansky
J. Opt. Soc. Am. A 27(11) 2488-2495 (2010)
Nadaparambil Aravindakshan Rejesh, Harish Pullagurla, and Manojit Pramanik
J. Opt. Soc. Am. A 30(10) 1994-2001 (2013)
Yang Lou, Kun Wang, Alexander A. Oraevsky, and Mark A. Anastasio
J. Opt. Soc. Am. A 33(12) 2333-2347 (2016)