Non-invasive evaluation of biological materials using pulsed photothermal tomography

11/19/98


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Table of Contents

Non-invasive evaluation of biological materials using pulsed photothermal tomography

Objectives

Chick Chorioallantoic Membrane (CAM) vasculature

Experimental setup for IR imaging

Parameters of pulsed laser radiation:

IR Focal Plane Array camera

PPT Slide

Time-dependent photothermal signal at CAM surface

Clinical application of IR imaging

PPT Slide

Iterative tomographic reconstruction algorithm (TRA)

PPT Slide

Tomographic reconstruction of the initial temperature distribution

PPT Slide

Vertical cross-section of computed initial three-dimensional temperature distribution

Three-dimensional temperature increase in CAM following laser exposure with l=585 nm

Apparatus for IR imaging of PWS blood vessels

IR imaging of PWS lesions

IR imaging of a PWS lesion (cheek area)

Reconstruction of 3D temperature in a PWS lesion (cheek area)

Reconstruction of 3D temperature in a PWS lesion (left hand)

Conclusions

Acknowledgement

Author: Sergey

Email: milner@ece.utexas.edu