Benjamin T Cox
Affiliation: University College London
- Two-dimensional quantitative photoacoustic image reconstruction of absorption distributions in scattering media by use of a simple iterative methodBenjamin T Cox
Department of Medical Physics and Bioengineering, University College London, Gower Street, London WC1E 6BT, UK
Appl Opt 45:1866-75. 2006..The ability to recover optical properties (which directly reflect tissue physiology) could enhance photoacoustic imaging techniques, particularly methods based on spectroscopic analysis of chromophores...
- Measurement of broadband temperature-dependent ultrasonic attenuation and dispersion using photoacousticsBradley E Treeby
Department of Medical Physics and Bioengineering, University College London, London, UK
IEEE Trans Ultrason Ferroelectr Freq Control 56:1666-76. 2009..The extracted parameters are compared with other calibration measurements previously reported in the literature...
- Artifact trapping during time reversal photoacoustic imaging for acoustically heterogeneous mediaBenjamin T Cox
Department of Medical Physics and Bioengineering, University College, WC1E 6DE London, U K
IEEE Trans Med Imaging 29:387-96. 2010..Here, it is shown that such reconstruction algorithms can "trap" time reversed scattered waves, leading to artifacts within the image region. Two ways to mitigate this effect are proposed...
- The frequency-dependent directivity of a planar fabry-perot polymer film ultrasound sensorBenjamin T Cox
Department of Medical Physics and Bioengineering, University College London, UK
IEEE Trans Ultrason Ferroelectr Freq Control 54:394-404. 2007..For a polymer film sensor with a FP cavity of thickness d, the minimum effective element radius was found to be about 0.9 d, and that an illumination spot radius of less than d/4 is required to achieve it...