Universal back-projection algorithm for photoacoustic computed tomography

We report results of a reconstruction algorithm for three-dimensional photoacoustic computed tomography. A universal back-projection formula is presented for three types of imaging geometries: planar, spherical, and cylindrical surfaces. A solid-angle weighting factor is introduced in the back-projection formula to compensate for the variations of detection views. A method for implementing this algorithm is described. Numerical simulation is used to demonstrate the performance of the algorithm.

• TH
  Texas Higher Education Coordinating Board

  Awards: 000512-0063-2001, R01 EB000712
• NI
  National Institutes of Health

  Awards: R01 NS46214, R01 EB000712, 000512-0063-2001
• MR
  Medical Research and Materiel Command

  Awards: R01 EB000712, 000512-0063-2001