ALARA
Medical abbreviation · Medical Imaging
| Stands for | As low as reasonably achievable |
|---|---|
| Categories | Medical |
ALARA stands for As low as reasonably achievable, a medical imaging abbreviation also used in science.
Radiation safety principle requiring that exposure to ionizing radiation be kept as low as reasonably achievable while still obtaining the needed diagnostic information or treatment. It shapes imaging protocols, shielding, staff time and distance limits, and the choice of non-radiation alternatives such as ultrasound or MRI.
Example: Pediatric CT protocol adjusted per ALARA: weight-based dose and limited scan range.
Usage notes
Practical rules are summed up as time, distance and shielding. Campaigns such as Image Gently (for children, launched in 2008) and Image Wisely (for adults) promote ALARA in medical imaging. The principle is written into US Nuclear Regulatory Commission rules for occupational exposure.
Related abbreviations
More medical imaging abbreviations
- ADC – Apparent diffusion coefficient
- AP – Anteroposterior
- AXR – Abdominal X-ray
- BI-RADS – Breast Imaging Reporting and Data System
- BMD – Bone mineral density
- CBCT – Cone-beam computed tomography
- CECT – Contrast-enhanced computed tomography
- CIN – Contrast-induced nephropathy
- CT – Computed tomography
- CTA – Computed tomography angiography
- CTH – Computed tomography of the head
- CTP – Computed tomography perfusion
See all 58 medical imaging abbreviations →
This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.