Double-contrast barium enema study with computed radiography: assessment in detection of colorectal polyps.
J Digit Imaging
; 7(3): 154-9, 1994 Aug.
Article
em En
| MEDLINE
| ID: mdl-7948175
ABSTRACT
Feasibility and diagnostic performance of digital radiography in gastrointestinal imaging have not been fully investigated. We performed double-contrast barium enema study with computed radiography (CR-DCBE) on a routine basis, and the efficacy of this system for detection of colorectal polyps was investigated. The files of 76 patients, who had undergone both CR-DCBE and colonoscopy, were reviewed by two observers who were blinded to the colonoscopic findings. The radiation dose of CR-DCBE was reduced to 50% of conventional film-screen system. By using colonoscopic findings as a reference, the sensitivity and positive predictive value for colorectal polyps were 66% to 71% and 32% to 41%, respectively. There was no significant interobserver difference. The use of postprocessing with gray-scale reversal and edge enhancement did not significantly improve the results. The sensitivity for polyps smaller than 1 cm was comparable with published data of conventional film-screen systems. Our preliminary results show that CR-DCBE has an acceptable sensitivity for detection of colorectal polyps. It is suggested that the use of CR is a promising approach to digital gastrointestinal radiography.
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Base de dados:
MEDLINE
Assunto principal:
Neoplasias Retais
/
Sulfato de Bário
/
Intensificação de Imagem Radiográfica
/
Pólipos do Colo
/
Pólipos Intestinais
/
Enema
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Idioma:
En
Revista:
J Digit Imaging
Ano de publicação:
1994
Tipo de documento:
Article
País de afiliação:
Japão