Fat halo sign in the bowel wall of patients with Crohn's disease
| Autor: | Sara Apter, Tal Arazi-Kleinman, Marjorie Hertz, Benjamin Avidan, Eli Konen, Michal Amitai, A. Biegon |
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| Rok vydání: | 2007 |
| Předmět: |
Adult
Male medicine.medical_specialty Time Factors Adolescent Colon Ileum Intra-Abdominal Fat Gastroenterology Crohn Disease Internal medicine Submucosa Epidemiology medicine Ascending colon Humans Radiology Nuclear Medicine and imaging Large intestine False Positive Reactions Halo sign False Negative Reactions Aged Aged 80 and over Crohn's disease business.industry General Medicine Middle Aged medicine.disease medicine.anatomical_structure Abdomen Female medicine.symptom business Tomography X-Ray Computed |
| Zdroj: | Clinical radiology. 62(10) |
| ISSN: | 0009-9260 |
| Popis: | Aim To evaluate the prevalence and localization of the deposition of submucosal fat, the “fat halo sign” (FHS), using computed tomography (CT) in the bowel wall of patients with Crohn's Disease, and to assess its relation to the duration of the disease. Materials and methods The abdominal CT examinations of 100 consecutive patients were reviewed for the presence of the FHS in the bowel wall. A measurement of less than −10 HU was regarded as indicative of fat. CT findings were correlated with the duration of the disease and statistically tested by simple regression analysis. The patients were divided into two groups: group A included 26 patients with a disease duration of less than 1 year and group B included 73 with a longer disease duration. In one patient disease duration was unknown. To test the relationship between disease duration and FHS the cumulative number of FHS positive and negative patients was plotted against disease duration. Results The FHS was present in 17 of the 100 patients in 20 bowel segments, mainly in the ileum (10) and the ascending colon (8). The FHS was present in 3.8% in group A and in 21.9% in group B (p Conclusion The FHS was present in 17% of patients with CD. Its location was mainly in the terminal ileum and ascending colon, typical sites of the disease. Its prevalence was significantly duration dependent. |
| Databáze: | OpenAIRE |
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