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Radiation exposure from abdominal imaging studies in patients with intestinal Behçet disease

 Yoon Suk Jung  ;  Dong Il Park  ;  Chang Mo Moon  ;  Soo Jung Park  ;  Sung Pil Hong  ;  Tae Il Kim  ;  Won Ho Kim  ;  Jae Hee Cheon 
 GUT AND LIVER, Vol.8(4) : 380-387, 2014 
Journal Title
Issue Date
Abdomen/radiation effects ; Adult ; Behcet Syndrome/diagnostic imaging* ; Dose-Response Relationship, Radiation ; Female ; Humans ; Intestinal Diseases/diagnostic imaging* ; Male ; Radiation Dosage ; Radiography ; Retrospective Studies ; Risk Factors
Clinical course ; Intestinal Behcet disease ; Prognostic factors ; Radiation
BACKGROUND/AIMS: Recently, several studies have revealed that diagnostic imaging can result in exposure to harmful levels of ionizing radiation in inflammatory bowel disease patients. However, the extent of radiation exposure in intestinal Behcet disease (BD) patients has not been documented. The aim of this study was to estimate the radiation exposure from abdominal imaging studies in intestinal BD patients. METHODS: Patients with a diagnosis of intestinal BD established between January 1990 and March 2012 were investigated at a single tertiary academic medical center. The cumulative effective dose (CED) was calculated retrospectively from standard tables and by counting the number of abdominal imaging studies performed. High exposure was defined as CED >50 mSv. RESULTS: In total, 270 patients were included in the study. The mean CED was 41.3 mSv, and 28.1% of patients were exposed to high levels of radiation. Computed tomography (CT) accounted for 81.7% of the total effective dose. In multivariate analyses, predictors of high radiation exposure were azathioprine/6-mercaptopurine use, surgery, and hospitalization. CONCLUSIONS: Approximately a quarter of intestinal BD patients were exposed to harmful levels of diagnostic radiation, mainly from CT examination. Clinicians should reduce the number of unnecessary CT examinations and consider low-dose CT profiles or alternative modalities such as magnetic resonance enterography.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Won Ho(김원호) ORCID logo https://orcid.org/0000-0002-5682-9972
Kim, Tae Il(김태일) ORCID logo https://orcid.org/0000-0003-4807-890X
Park, Soo Jung(박수정)
Cheon, Jae Hee(천재희) ORCID logo https://orcid.org/0000-0002-2282-8904
Hong, Sung Pil(홍성필)
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