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.
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