Gastrointestinal
Small bowel
Maximal diameter (6 months - 15 y/o)
Table
Radiography (Anteroposterior)
| 6 months | 13.9 mm |
| 1 y/o | 14.9 mm |
| 2 y/o | 16.9 mm |
| 3 y/o | 18.6 mm |
| 4 y/o | 20.8 mm |
| 5 y/o | 20.9 mm |
| 6 y/o | 21.8 mm |
| 7 y/o | 22.4 mm |
| 8 y/o | 22.9 mm |
| 9 y/o | 23.3 mm |
| 10 y/o | 23.7 mm |
| 11 y/o | 24.0 mm |
| 12 y/o | 24.2 mm |
| 13 y/o | 24.4 mm |
| 14 y/o | 24.6 mm |
| 15 y/o | 24.9 mm |
Reference
Haworth EM, et al: Radiologic measurement of small bowel caliber in normal subjects according to age. Clin Radiol 18:427-431, 1967.
