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Biological tissues imaged by tagging photon paths with ultrasound

  • S. Leveque
  • , A. C. Boccara
  • , E. Beaurepaire
  • , A. Dubois
  • , M. Lebec
  • , H. Saint-Jalmes
  • PSL Research University

Résultats de recherche: Contribution à un journalArticle de conférenceRevue par des pairs

Résumé

We describe here the detailed signal processing technique that we have introduced to detect ultrasonic speckle modulation using a CCD array. We show that this new approach leads to a better signal to noise ratio than the single detector one not only because all the speckle grains signals are used but also because averaging over a few 104 grains smoothes this random signal. Finally a few examples of signal generated by locally absorbing volume immersed in real biological tissues are given.

langue originaleAnglais
Pages (de - à)694-701
Nombre de pages8
journalProceedings of SPIE - The International Society for Optical Engineering
Volume3597
étatPublié - 1 déc. 1999
Modification externeOui
EvénementProceedings of the 1999 Optical Tomography and Spectroscopy of Tissue III - San Jose, CA, USA
Durée: 24 janv. 199928 janv. 1999

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