Nondestructive inspection of tissue/tissue like phantom curved surfaces using digital speckle shearography

Narayanan Unni Sujatha; Vadakke Matham Murukeshan

doi:10.1117/1.1810531

1 December 2004 Nondestructive inspection of tissue/tissue like phantom curved surfaces using digital speckle shearography

Narayanan Unni Sujatha, Vadakke Matham Murukeshan

Author Affiliations +

Optical Engineering, Vol. 43, Issue 12, (December 2004). https://doi.org/10.1117/1.1810531

Abstract

A preliminary study of the application of speckle shearographic methods in the nondestructive inspection of the curved surfaces of soft tissue phantoms is presented. An extended theoretical formulation dealing with the slope fringe formation in the curved surface of the phantom tissue specimen is derived and compared with the experimentally obtained fringe patterns. Abnormalities are introduced in different layers of the half-cylindrical shaped tissue phantom that resembles abnormal growths in body cavities such as polyps in different parts of the gastrointestinal path, especially in the large intestine. A qualitative comparison of the shear fringe patterns for specimens with and without abnormalities is presented and the fringe patterns are compared with the slope contours generated numerically using finite element modeling.

©(2004) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Narayanan Unni Sujatha and Vadakke Matham Murukeshan "Nondestructive inspection of tissue/tissue like phantom curved surfaces using digital speckle shearography," Optical Engineering 43(12), (1 December 2004). https://doi.org/10.1117/1.1810531

Published: 1 December 2004

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