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Optics Letters

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  • Vol. 24, Iss. 15 — Aug. 1, 1999
  • pp: 1050–1052

Imager that combines near-infrared diffusive light and ultrasound

Q. Zhu, T. Durduran, V. Ntziachristos, M. Holboke, and A. G. Yodh  »View Author Affiliations


Optics Letters, Vol. 24, Issue 15, pp. 1050-1052 (1999)
http://dx.doi.org/10.1364/OL.24.001050


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Abstract

We introduce an imaging technique that combines complementary features of ultrasound and near-infrared diffusive light imaging. We achieve the combined technology experimentally by mounting an ultrasound array together with multiple laser source and optical detector fibers upon a hand-held probe. The technique is demonstrated with tissue phantoms wherein both acoustic and optical sensors image the volume underneath the probe. Coregistration of acoustic and optical images is achieved with an accuracy of 0.27±0.20cm, approximately half of the image pixel size of our prototype. Accurate determination of target optical absorption is also achieved by use of image segmentation on the ultrasound reconstruction. The combined technique may provide improved breast-cancer detection sensitivity and specificity.

© 1999 Optical Society of America

OCIS Codes
(170.3010) Medical optics and biotechnology : Image reconstruction techniques
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(170.3830) Medical optics and biotechnology : Mammography
(170.5280) Medical optics and biotechnology : Photon migration
(170.7170) Medical optics and biotechnology : Ultrasound

Citation
Q. Zhu, T. Durduran, V. Ntziachristos, M. Holboke, and A. G. Yodh, "Imager that combines near-infrared diffusive light and ultrasound," Opt. Lett. 24, 1050-1052 (1999)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-24-15-1050


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