Radiation risk from medical imaging: Difference between revisions
Ostermayer (talk | contribs) (Text replacement - "Category:Rads" to "Category:Radiology") |
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*Head <50 | *Head <50 | ||
*Chest <1000 | *Chest <1000 | ||
*Upper | *Upper abdomen <3000 | ||
*Lower | *Lower abdomen <9000 | ||
===Angiography=== | ===Angiography=== | ||
Revision as of 11:05, 15 July 2016
Tests and Radiation Amounts
Plain Film X-ray (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 abdomen <3000
- Lower abdomen <9000
Angiography
- Cerebral <100
- Cardiac cath <500
- Aortography <100
V/Q scan <215
- (class C injectable technetium, xenon even safer)
Pregnancy
- Greatest risk of harm during organogenesis (3-8 WGA)
- IV contrast not teratogenic (class B)
- PO contrast not absorbed = no risk
Exposure Risk
- <5,000 mrads = safe
- ~10,000 mrads = small risk childhood CA
- ~15,000^ mrads = 6% chance mental retardation
- <3% chance childhood CA
^Considered max
Always use shield when possible