Differentiation of Tuberculous Enteritis and Crohn's Disease with Barium Study Using Bayes Theory.
10.3348/jkrs.2004.51.2.217
- Author:
Kyoung Ja LIM
1
;
Chul Soon CHOI
;
Eun Joo YEUN
;
Young Lan SEO
;
Il Sung LEE
;
Ik YANG
;
Woo Chul WHANG
;
Sang Hoon BAE
;
Ik Won KANG
Author Information
1. Department of Radiology, College of Medicine, Hallym University, Korea. chulsoon@hallym.or.kr
- Publication Type:Original Article
- Keywords:
Barium enema examination;
Crohn's disease;
Small intestine;
Tuberculosis, gastrointestinal
- MeSH:
Barium*;
Bays*;
Cecum;
Colon, Ascending;
Colon, Sigmoid;
Constriction, Pathologic;
Crohn Disease*;
Diagnosis;
Enema;
Enteritis*;
Humans;
Ileum;
Intestine, Small;
Jejunum;
Rectum;
Specialization;
Tuberculosis, Gastrointestinal
- From:Journal of the Korean Radiological Society
2004;51(2):217-222
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To differentiate tuberculous enteritis and Crohn's disease with barium study using Bayes theory. MATERIALS AND METHODS: The study group consisted of 34 patients with tuberculous enteritis (age range 16-86 years, mean age 43.3 years, M:F=19:15) and 36 patients with Crohn's disease (age range 19-78 years, mean age 35.2 years, M:F=18:18). These diagnoses were confirmed by therapeutic tests (tuberculous enteritis: 15, Crohn's disease:16) or histopathological examinations (tuberculous enteritis: 19, Crohn's disease: 20) conducted from January 1993 to May 2003. Three radiologists (two abdominal specialists and one trainee) analyzed each radiological finding of tuberculous enteritis and Crohn's disease by means of a barium enema and/or small bowel series. We used Fisher's exact test to verify the statistical significance of each radiological finding and p-values less than 0.05 were considered to be significant. We calculated the likelihood ratio (LR) of tuberculous enteritis versus Crohn's disease for each finding by employing Bayes theory. RESULTS: The radiological findings associated with a high likelihood ratio for tuberculous enteritis were the involvement of the cecum (LR=2.65) and ascending colon (LR=1.99), rigid narrowing (LR=1.94), shortening of the bowel (LR=1.99), haustral loss (LR=1.97) and sacculation (LR=3.88). The radiological findings associated with a high LR for Crohn's disease (low LR for tuberculous enteritis) were age between 20 and 29 years (LR=0.53), the involvement of the jejunum (LR=0.12), terminal ileum (LR=0.19), sigmoid colon (LR=0.30) or rectum (LR=0.17), and the presence of skip lesions (LR=0.19) or strictures (LR=0.21). With these LRs, the probability of the subject having tuberculous enteritis versus Crohn's disease could be calculated using Bayes theory. CONCLUSION: The analysis of a barium study using Bayes theory could provide an objective, easy and fast method of differentiating tuberculous enteritis and Crohn's disease.
