Study of a digital video system for manometry of esophageal varices / 中华消化杂志
Chinese Journal of Digestion
; (12)2001.
Article
em Zh
| WPRIM
| ID: wpr-573865
Biblioteca responsável:
WPRO
ABSTRACT
Objective To develop a digital video system for esophageal variceal manometry and to evaluate its reliability. Methods The system consists of esophageal variceal manometer, pressure transducer, video capture card and special computer programs. An artificial esophagus containing water-filled latex tube was designed, in which the pressure had been measured by this system in vitro. The pressures of esophageal varices had been measured by using the method in five patients. Results In vitro study, a good correlation was showed between the actual pressure and measured pressure in the artificial varices with different diameter (3,6,9 mm)(r=0.975, P
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1
Base de dados:
WPRIM
Idioma:
Zh
Revista:
Chinese Journal of Digestion
Ano de publicação:
2001
Tipo de documento:
Article