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Universal back-projection algorithm for photoacoustic computed tomography

Physical Review E · 2005 · Vol. 71(1) · pp. 016706–016706

Minghua Xu✉(Texas A&M University)Lihong V. Wang(Texas A&M University)

Abstract

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.

Photoacoustic and Ultrasonic Imaging Thermography and Photoacoustic Techniques Calibration and Measurement TechniquesWeightingBack projectionAlgorithmProjection (relational algebra)Planar projectionPlanarPhotoacoustic tomographyTomographyComputed tomographyPhotoacoustic imaging in biomedicine

MeSH terms

AcousticsAlgorithmsComputer SimulationHumansImage Processing, Computer-AssistedModels, TheoreticalRadiographic Image EnhancementRadiographic Image Interpretation, Computer-AssistedTomography, X-Ray ComputedModels, StatisticalPhantoms, ImagingImaging, Three-Dimensional