Table 1: Mean radiation dose for common diagnostic radiologic tests.

Type of procedureEffective dose (mSv)Reference

Abdomen and pelvis scan12.8[10]
Virtual colonoscopy10[8]
Abdomen scan8[8]
Thorax scan5.9[10]
Barium enema8[8]
Upper gastrointestinal series6[8]
Small bowel series5[8]
Abdomen radiography0.7[8]
Chest radiography0.02[8]

mSv, millisievert.