Radiation risk from medical imaging: Difference between revisions
| Line 38: | Line 38: | ||
*<5,000 = safe | *<5,000 = safe | ||
*~10,000 = small risk childhood CA | *~10,000 = small risk childhood CA | ||
*~15,000^ = 6% chance mental | *~15,000^ = 6% chance mental retardation | ||
*<3% chance childhood CA | *<3% chance childhood CA | ||
Revision as of 04:32, 21 January 2015
Tests and Radiation Amounts
FLAT FILMS (mrad)
Low-dose
- Head <1
- C-spine <1
- Thracic spine <1
- CXR <1
- Extrem <1
High-dose
- L-spine <1250
- Pelvis <350
- Hip <450
- IVP <900
- Urethrocyst <1500
- KUB <500
CT (1cm slices)
- Head <50
- Chest <1000
- Upper abd <3000
- Lower abd <9000
ANGIO
- Cerebral <100
- Cardiac cath <500
- Aortography <100
V/Q scan <215
- (class C injectable technetium, xenon even safer)
Pregnancy
- Greatest risk during organogenesis (8-12wk)
- IV contrast not teratogenic (class B)
- PO contrast not absorbed
EXPOSURE RISK (mrads)
- <5,000 = safe
- ~10,000 = small risk childhood CA
- ~15,000^ = 6% chance mental retardation
- <3% chance childhood CA
^Considered max
Always use sheild when possible
See Also
Source
- Rosen