29 research outputs found
Three-dimensional phantom imaging for photoacoustic mammography
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%