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Proceedings Paper

Tissue photoablation process with short-pulsed lasers
Author(s): Gerhard J. Mueller; Klaus Doerschel; Hasan Kar
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Paper Abstract

Since Hippocrates, physicians have three weapons to fight malignant diseases of the human body: Quae medicamenta non sanat, ferrum sanat; quae ferrum non sanat, ignis sanat; and quae vero ignis non sanat, insanabilia reputari oportet. Today there are various possibilities to use the ''fire'': electrical and optical cauterization; mono- and bipolar rf-surgery; ionizing radiation for tumor treatment; and last but not least, the laser of laser tissue interactions, all can be used to remove malignant tissue either by biological digestion or immediate ablation, i.e., photovaporization or photodecomposition. This paper will discuss a semiempirical theory of the so-called photoablation process and the thermal side effects of the surrounding tissue. The term ''Photoablation; has to be well differentiated with the terms photovaporization, photodisruption and photofragmentation. As will be shown in this paper, photoablation is a microscale fast thermal explosion.

Paper Details

Date Published: 1 March 1992
PDF: 28 pages
Proc. SPIE 1524, Bioptics: Optics in Biomedicine and Environmental Sciences, (1 March 1992); doi: 10.1117/12.57727
Show Author Affiliations
Gerhard J. Mueller, Laser-Medizin-Zentrum GmbH (Germany)
Klaus Doerschel, Laser-Medizin-Zentrum GmbH (Germany)
Hasan Kar, Laser-Medizin-Zentrum GmbH (Germany)

Published in SPIE Proceedings Vol. 1524:
Bioptics: Optics in Biomedicine and Environmental Sciences
Anna Maria Verga Scheggi; Oliverio D.D. Soares, Editor(s)

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