Accuracy of approximate inversion schemes in quantitative photoacoustic imaging

Roman Hochuli; Paul C. Beard; Ben Cox

doi:10.1117/12.2039825

3 March 2014 Accuracy of approximate inversion schemes in quantitative photoacoustic imaging

Roman Hochuli, Paul C. Beard, Ben Cox

Proceedings Volume 8943, Photons Plus Ultrasound: Imaging and Sensing 2014; 89435V (2014) https://doi.org/10.1117/12.2039825
Event: SPIE BiOS, 2014, San Francisco, California, United States

Abstract

Five numerical phantoms were developed to investigate the accuracy of approximate inversion schemes in the reconstruction of oxygen saturation in photoacoustic imaging. In particular, two types of inversion are considered: Type I, an inversion that assumes fluence is unchanged between illumination wavelengths, and Type II, a method that assumes known background absorption and scattering coefficients to partially correct for the fluence. These approaches are tested in tomography (PAT) and acoustic-resolution microscopy mode (AR-PAM). They are found to produce accurate values of oxygen saturation in a blood vessel of interest at shallow depth - less than 3mm for PAT and less than 1mm for AR-PAM.

Citation Download Citation

Roman Hochuli, Paul C. Beard, and Ben Cox "Accuracy of approximate inversion schemes in quantitative photoacoustic imaging", Proc. SPIE 8943, Photons Plus Ultrasound: Imaging and Sensing 2014, 89435V (3 March 2014); https://doi.org/10.1117/12.2039825

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