Numéro
J. Phys. IV France
Volume 04, Numéro C4, Avril 1994
3rd International Conference Laser M2P
Page(s) C4-253 - C4-256
DOI http://dx.doi.org/10.1051/jp4:1994458
3rd International Conference Laser M2P

J. Phys. IV France 04 (1994) C4-253-C4-256

DOI: 10.1051/jp4:1994458

Clinical measurement of the optical penetration depth in digestive tissues

A. SIBILLE1, P. LENZ2 and R. LAMBERT1

1  Department of Digestive Diseases, Edouard Herriot Hospital, Place d'Arsonval, 69437 Lyon, France
2  INSERM U 281, 151 Cours Albert Thomas, 69424 Lyon, France


Abstract
In photodynamic therapy the light dose received by the whole tumor volume is critical for obtaining a good response. It is therefore necessary to know the light penetration in the target tissue. When performing photodynamic therapy with hematoporphyrin derivative, the 630 nm red light is used. The aim of this study was to determine the optical penetration depth at 630 nm on biopsy samples from digestive tissues by means of an original device.



© EDP Sciences 1994