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Multiple passive element enriched photoacoustic computed tomography |
Optics Letters, Vol. 36, Issue 15, pp. 2809-2811 (2011)
http://dx.doi.org/10.1364/OL.36.002809
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Abstract
Recently, we presented a method using laser-induced ultrasound from an external absorber (passive element) to image the ultrasound transmission parameters of an object under photoacoustic tomographic investigation. The method suffers from long measurement times due to the requirement for a large number of views and consequently physical projections around the object. Here we propose and validate an approach that permits a multitude of views to be obtained within a limited projection scenario. The approach uses a plurality of spatially distributed external absorbers in the path of the light, that results in multiple laser-induced ultrasound sources to interrogate the object from a number of angles. This reduces the required number of rotation angles or physical projections around the object, permitting a considerable reduction in imaging time without significant degradation in image quality. The approach brings the concept of hybrid imaging of ultrasound transmission parameters together with photoacoustic imaging, into the realm of practical application.
© 2011 Optical Society of America
OCIS Codes
(110.5120) Imaging systems : Photoacoustic imaging
(120.3890) Instrumentation, measurement, and metrology : Medical optics instrumentation
(170.7170) Medical optics and biotechnology : Ultrasound
ToC Category:
Instrumentation, Measurement, and Metrology
History
Original Manuscript: May 25, 2011
Manuscript Accepted: June 7, 2011
Published: July 20, 2011
Virtual Issues
Vol. 6, Iss. 9 Virtual Journal for Biomedical Optics
Citation
Steffen Resink, Jithin Jose, Rene G. H. Willemink, Cornelis H. Slump, Wiendelt Steenbergen, Ton G. van Leeuwen, and Srirang Manohar, "Multiple passive element enriched photoacoustic computed tomography," Opt. Lett. 36, 2809-2811 (2011)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-36-15-2809
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