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Conference 11960 > Paper 11960-106
Paper 11960-106

Quantitative photoacoustic velocimetry technique using multi-angle observations

Abstract

Photoacoustic imaging utilises the high optical contrast between hemoglobin and soft tissue to generate images of blood vessels. By determining each pixel’s average phase shift across a series of images, the movement of the absorbers can be determined using a technique called Photoacoustic Velocimetry. This method solves the photoacoustic Doppler equation using a least-squares approach to determine the magnitude and direction of flow at each pixel without prior knowledge of the angle of flow. This novel technique is demonstrated using data obtained from simulations and bench-top experiments.

Presenter

The Univ. of Auckland (New Zealand), The Dodd-Walls Ctr. for Photonic and Quantum Technologies (New Zealand)
She is a first-year PhD student at the University of Auckland, working towards using Photoacoustic Imaging to quantify and study blood flow in cortical bone and bone marrow.
Presenter/Author
The Univ. of Auckland (New Zealand), The Dodd-Walls Ctr. for Photonic and Quantum Technologies (New Zealand)
Author
The Univ. of Auckland (New Zealand), The Dodd-Walls Ctr. for Photonic and Quantum Technologies (New Zealand)
Author
Technische Univ. Delft (Netherlands), Lab. d'Imagerie Biomédicale, INSERM, Sorbonne Univ., CNRS (France)
Author
Kasper van Wijk
The Univ. of Auckland (New Zealand), The Dodd-Walls Ctr. for Photonic and Quantum Technologies (New Zealand)