CIOP 05384
CENTRO DE INVESTIGACIONES OPTICAS
Unidad Ejecutora - UE
artículos
Título:
Identification of Gastric Cancer from Speckle Patterns
Autor/es:
C.A. ANDRADE-ERASO; M. PATIÑO-VELASCO; J. VÁSQUEZ-LÓPEZ; J. LEÓN-TELLEZ; G. BOLAÑOS-PANTOJA; M. TRIVI
Revista:
ACTA PHYSICA POLONICA A
Editorial:
POLISH ACAD SCIENCES INST PHYSICS
Referencias:
Año: 2012 vol. 121 p. 62 - 64
ISSN:
0587-4246
Resumen:
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 m. 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
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
m. 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
