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Concomitant speed-of-sound tomography in photoacoustic imaging
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10.1063/1.2789689
/content/aip/journal/apl/91/13/10.1063/1.2789689
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/13/10.1063/1.2789689
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Figures

Image of FIG. 1.
FIG. 1.

(Color online) (a) A schematic of the method to measure speed-of-sound (SOS) cross-sectional images in a photoacoustic imager. Ultrasound transients are generated in the absorbing carbon fiber placed in the path of light illuminating the sample. The time-of-arrival (TOA) of the ultrasound transient is measured at each element of the ultrasound detector array. The photoacoustic signals from the object can be measured as well. (b) The TOA of the ultrasound transient at an individual element results from SOS variations along the ray from the source to the detector. This describes a fan-beam geometry which allows reconstruction enabling TOA and equivalently SOS tomography.

Image of FIG. 2.
FIG. 2.

(Color) (a) A schematic of the agar phantom surrounded by water with two square cross-sectional cavities filled with olive oil. (b) Speed-of-sound (SOS) tomogram of the phantom demonstrating the ability of the method to reconstruct SOS variations. The black dotted lines indicate the coordinates at which (c) intensity profiles are plotted.

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/content/aip/journal/apl/91/13/10.1063/1.2789689
2007-09-28
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Concomitant speed-of-sound tomography in photoacoustic imaging
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/13/10.1063/1.2789689
10.1063/1.2789689
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