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A REVIEW OF THE USES OF LASER IN GASTRO-INTESTINAL TRACT

Ghassan A A Nasir

Basrah Journal of Surgery مجلة البصرة الجراحية
ISSN: 16833589 Year: 2010 Volume: 16 Issue: 2 Pages: 12-15
Publisher: Basrah University جامعة البصرة

Abstract

LASER (Light Amplification by Stimulated Emission of Radiation), is a mechanism of emittingelectromagnetic radiation typically light as a process of stimulated emission.Common light sources(electric light bulb)��Emit photons in all directions, usually over a widespectrum of wavelengths. Host light sources are incoherentLASER��Emit photons in a narrow, well defined beam of light. The light is often nearmonochromatic,consistency of single narrow wavelength. It is highly coherent and is oftenpolarized.LASER was introduced to practice in 16 May 19601,2. Laser introduce into medicine at early197011.LASER in Medicine: various types of laser are used in medicine for diagnosis, treatment andtherapy.The medical areas that employ laser include: Angioplasty, Dentistry, Dermatology, Lithotripsy,Mammography, Ophthalmology, Surgery, Urology, Cancer laser (PDT: Photodynamic therapy)3.

Keywords

LASER