We propose a novel approach to imaging in diffusive media based on time-resolved reflectance measurements at null source-detector separation. This approach yields better spatial resolution and contrast as compared to the classical approach, which typically employs a separation of 20–40 mm. Results are obtained by an analytical perturbation approach to diffusion theory and on Monte Carlo simulations. Practical implementation with state-of-the-art technology and performance of a complementary approach based on the use of small but not null source-detector separation are also discussed.

Time-Resolved Reflectance at Null Source-Detector Separation:Improving Contrast and Resolution in Diffuse Optical Imaging / A. Torricelli; A. Pifferi; L. Spinelli; R. Cubeddu; F. Martelli; S. Del Bianco; G. Zaccanti. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 95:(2005), pp. 078101-1-078101-4. [10.1103/PhysRevLett.105.220404]

Time-Resolved Reflectance at Null Source-Detector Separation:Improving Contrast and Resolution in Diffuse Optical Imaging

MARTELLI, FABRIZIO;ZACCANTI, GIOVANNI
2005

Abstract

We propose a novel approach to imaging in diffusive media based on time-resolved reflectance measurements at null source-detector separation. This approach yields better spatial resolution and contrast as compared to the classical approach, which typically employs a separation of 20–40 mm. Results are obtained by an analytical perturbation approach to diffusion theory and on Monte Carlo simulations. Practical implementation with state-of-the-art technology and performance of a complementary approach based on the use of small but not null source-detector separation are also discussed.
2005
95
078101-1
078101-4
A. Torricelli; A. Pifferi; L. Spinelli; R. Cubeddu; F. Martelli; S. Del Bianco; G. Zaccanti
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/400145
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