Optoacoustic laser monitoring of cooling and freezing of tissues

K. V. Larin, I. V. Larina, M. Motamedi, R. O. Esenaliev

Research output: Contribution to journalArticle

16 Scopus citations

Abstract

Real-time monitoring of cooling and freezing of tissues, cells, and other biological objects with a high spatial and time resolution, which is necessary for selective destruction of cancer and benign tumours during cryotherapy, as well as for preventing any damage to the structure and functioning of biological objects in cryobiology, is considered. The optoacoustic method, based on the measurement and analysis of acoustic waves induced by short laser pulses, is proposed for monitoring the cooling and freezing of the tissue. The effect of cooling and freezing on the amplitude and time profile of acoustic signals generated in real tissues and in a model object is studied. The experimental results indicate that the optoacoustic laser technique can be used for real-time monitoring of cooling and freezing of biological objects with a submillimeter spatial resolution and a high contrast.

Original languageEnglish (US)
Pages (from-to)953-958
Number of pages6
JournalQuantum Electronics
Volume32
Issue number11
DOIs
StatePublished - Nov 1 2002

Keywords

  • Freezing and cooling of tissues
  • Optical properties
  • Optoacoustics
  • Real-time monitoring

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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