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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 15, Iss. 21 — Nov. 1, 1990
  • pp: 1179–1181

Time-resolved transillumination for medical diagnostics

S. Andersson-Engels, R. Berg, S. Svanberg, and O. Jarlman  »View Author Affiliations


Optics Letters, Vol. 15, Issue 21, pp. 1179-1181 (1990)
http://dx.doi.org/10.1364/OL.15.001179


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Abstract

A time-gated technique to improve the possibility of localizing spatial differences in absorption when transilluminating a turbid, highly scattering medium, such as human tissue, is demonstrated. When transmitting picosecond laser pulses and detecting photons on the opposite side of the object, the contrast can be strongly enhanced by detecting only the photons with the shortest traveling time. Measurements on a 35-mm-thick tissue phantom with 5-mm-diameter absorbing objects inside are reported with data for a human hand in vivo. Implications for optical mammography (diaphanography) are discussed.

© 1990 Optical Society of America

History
Original Manuscript: April 26, 1990
Manuscript Accepted: August 31, 1990
Published: November 1, 1990

Citation
S. Andersson-Engels, O. Jarlman, R. Berg, and S. Svanberg, "Time-resolved transillumination for medical diagnostics," Opt. Lett. 15, 1179-1181 (1990)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-15-21-1179

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