Time-resolved imaging of a solid breast phantom

David J. Hall; Jeremy C. Hebden; David T. Delpy

doi:10.1117/12.209966

30 May 1995 Time-resolved imaging of a solid breast phantom

David J. Hall, Jeremy C. Hebden, David T. Delpy

Proceedings Volume 2389, Optical Tomography, Photon Migration, and Spectroscopy of Tissue and Model Media: Theory, Human Studies, and Instrumentation; (1995) https://doi.org/10.1117/12.209966
Event: Photonics West '95, 1995, San Jose, CA, United States

Abstract

A time-resolved imaging technique has been used to obtain 2D near-IR images of a solid phantom with optical properties very similar to those of breast tissue. The phantom consisted of a highly scattering plastic slab, 54 mm thick, containing four small cylindrical blocks of contrasting optical properties. Imaging involved translating a beam of pulses in two dimensions across the surface of the phantom while recording the temporal distribution of the transmitted light at the opposite surface with a streak camera. The entire imaging process was performed automatically under computer control. Images generated using the earliest arriving light improved the visibility of the embedded cylinders compared to continuous light transillumination, but those images corresponding to flight times less than around 700ps were severly degraded due to a lack of detected photons. This degradation was partially overcome while still achieving a significant gain in contrast and resolution by comparison of the data to a photon transport model of the temporal distributions and using the model predictions as high signal-to-noise versions of the original data. All the embedded cylinders were revealed with sub-centimeter resolution.

Citation Download Citation

David J. Hall, Jeremy C. Hebden, and David T. Delpy "Time-resolved imaging of a solid breast phantom", Proc. SPIE 2389, Optical Tomography, Photon Migration, and Spectroscopy of Tissue and Model Media: Theory, Human Studies, and Instrumentation, (30 May 1995); https://doi.org/10.1117/12.209966

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available