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2012 | 121 | 1 | 62-64
Article title

Identification of Gastric Cancer from Speckle Patterns

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EN
Abstracts
EN
Speckle technique is based on the light intensity distribution randomly formed when a laser light is reflected on a rough surface, creating a pattern of illuminated grains (constructively) and dark (destructive) on scales of 1 μm. When the samples are displaced or deformed, the speckle pattern is altered. In this paper we present speckle patterns obtained from samples of gastric mucosa that is physically altered for the carcinogenesis process. Biopsies were studied with different diagnoses and were grouped according to the characteristics of speckle patterns. Speckle patterns were obtained by illuminating the samples with green laser. Morphological parameters of the speckle patterns reveal existence of 3 descriptors: the average grain size, hydraulic radius and the radio of the Weddel disc, which showed a high, intermediate and low value. The comparison shows agreement between the histopathological diagnosis and the values obtained by the speckle technique, making this technique emerge as a new classification system for quantitative diagnosis of precancerous lesions.
Keywords
EN
Publisher

Year
Volume
121
Issue
1
Pages
62-64
Physical description
Dates
published
2012-01
Contributors
  • Grupo de Óptica y Laser, Departamento de Física, Universidad del Cauca, Popayán, Colombia
  • Grupo de Óptica y Laser, Departamento de Física, Universidad del Cauca, Popayán, Colombia
  • Grupo de Óptica y Laser, Departamento de Física, Universidad del Cauca, Popayán, Colombia
  • Departamento Morfología, Facultad de Ciencias de la Salud, Universidad del Cauca, Popayán, Colombia
author
  • Centro de Investigaciones en Ingeniería y Organizaciones, Grupo de Investigaciones en Ciencias Aplicadas, Universidad Autónoma de Bucaramanga, Bucaramanga, Colombia
  • Grupo de Física de Bajas Temperaturas, Departamento de Física, Universidad del Cauca, Popayán, Colombia
author
  • Centro de Investigaciones Ópticas (CONICET La Plata - CIC) and UID Optimo, Dpto. Ciencias Básicas, Facultad de Ingeniería, Universidad Nacional de La Plata, Casilla de Correo 3, 1897 Gonnet-La Plata, Argentina
References
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  • 2. J.W. Goodman, Speckle Phenomena in Optics: Theory and Applications, Roberts and Co. Publ., USA 2007
  • 3. J.D. Briers, Opt. Quant. Electron. 10, 364 (1978)
  • 4. H.J. Rabal, R.A. Braga Jr., Dynamic Laser Speckle and Applications, CRC Press, Argentina 2009
  • 5. J.C. Adrada , F.H. Calambás, J.E. Díaz, D.O. Delgado, C.H. Sierra, Rev. Col. Gastroenterol. 23, 344 (2008) (in Spanish)
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  • 8. L.E. Bravo, J.C. Bravo, J.L. Realpe, G. Zarama, M.B. Piazuelo, P. Correa, Colomb. Med. 56, 58 (2008)
  • 9. L.A. Terry, E.J. Harvey, R.A. Weeks, Appl. Opt. 33, 8240 (1994)
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  • 11. J. Misdraji, G.Y. Lauwers, Semin. Diagn. Pathol. 19, 20 (2002)
  • 12. G.A. Rothey, D.W. Day, J. Clin. Pathol. 38, 613 (1985)
  • 13. S.C. Ming, Intestinal Metaplasia: Its Heterogeneous Natural and Significance in Precursors of Gastric Cancer, Ming SC Praeger Publ., New York 1984, p. 141
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv121n118kz
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