Low-dose CT colonography in children: initial experience, technical feasibility, and utility.
Pediatr Radiol
; 35(5): 518-24, 2005 May.
Article
em En
| MEDLINE
| ID: mdl-15789249
ABSTRACT
BACKGROUND:
CT colonography (CTC) is utilized as a diagnostic tool in the detection of colon polyps and early colorectal cancer in adults. Large studies in the literature, although focused on adult populations, have shown CTC to be a safe, accurate, non-invasive technique.OBJECTIVE:
We evaluated the technical feasibility of CTC in children using a low-dose technique. MATERIALS ANDMETHODS:
From November 2001 to April 2004 we evaluated eight patients (3-17 years) with non-contrast CTC. Seven of the patients had CTC, followed by standard colonoscopy (SC) the same day; in one patient, CTC followed a failed SC. CTC results were compared to results of SC. The estimated effective dose from each CTC was calculated and compared to that of standard barium enema.RESULTS:
CTC results were consistent with those of SC. Sensitivity for polyps 5-10 mm was 100%, and sensitivity for polyps 10 mm and larger was 66.7%. The estimated mean effective dose was 2.17 mSv for CTC, compared to the 5-6 mSv for a standard air-contrast barium enema in a small child.CONCLUSION:
Our initial experience shows CTC in children is well-tolerated, safe, and useful. The procedure can be performed successfully with a low radiation dose, and preliminary results compare well with SC.
Buscar no Google
Base de dados:
MEDLINE
Assunto principal:
Colonografia Tomográfica Computadorizada
Idioma:
En
Ano de publicação:
2005
Tipo de documento:
Article