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Proceedings Paper

Impulse-driven near-field radiofrequency thermoacoustic (NRT) tomography
Author(s): Daniel Razansky; Stephan Kellnberger; Vasilis Ntziachristos
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Paper Abstract

Herein we suggest and experimentally validate a novel thermoacoustic imaging method that relies on near-field exposure of the object to ultrashort impulses of safe radiofrequency energies. The physical rationale behind the Near-field Radiofrequency Tomography (NRT) is the well known ability of biological tissues to absorb a very significant portion of energy when closely coupled to radiofrequency and microwave sources. Compared to existing thermoacoustic imaging implementations, NRT offers a significantly simpler and cost-effective technology that uses high energy impulses instead of expensive and inefficient carrier-frequency amplification methods, making it possible to achieve significantly better imaging resolution without compromising thermoacoustic signal strength.

Paper Details

Date Published: 23 February 2011
PDF: 5 pages
Proc. SPIE 7899, Photons Plus Ultrasound: Imaging and Sensing 2011, 78993B (23 February 2011); doi: 10.1117/12.875281
Show Author Affiliations
Daniel Razansky, Technische Univ. München (Germany)
Helmholtz Zentrum München GmbH (Germany)
Stephan Kellnberger, Technische Univ. München (Germany)
Helmholtz Zentrum München GmbH (Germany)
Vasilis Ntziachristos, Technische Univ. München (Germany)
Helmholtz Zentrum München GmbH (Germany)


Published in SPIE Proceedings Vol. 7899:
Photons Plus Ultrasound: Imaging and Sensing 2011
Alexander A. Oraevsky; Lihong V. Wang, Editor(s)

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