J. Phys. IV France 125 (2005) 713-715
Three-dimensional phantom imaging for photoacoustic mammographyA. Kharine, S. Manohar and W. Steenbergen
Biophysical Techniques Group, Faculty of Science and Technology, University of Twente, Postbox 217, 7500AE Enschede, The Netherlands
We present a study of the laboratory version of a time-resolved photoacoustic mammoscope built based on a parallel plate geometry. An intralipid (IL) phantom with embedded cylindrical dyed gel inhomogeneities of different sizes and optical absorptions was used to test the quality of 3D image reconstruction and ability of studied instrument to detect optical contrast between imaged objects. The temporal backward projection Fourier transform based method was used for image reconstruction. The results of this study show that width at half maximum of images obtained by the photoacoustic mammoscope correlate well with lateral profile of imaged structures and that the optical contrast between imaged objects can be measured with deviation of 35%.
© EDP Sciences 2005