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CT Dose & Radiation Protection
Although the risk from medical radiation is small, we should not become complacent
- Diagnostic x-rays are the largest man-made source of exposure of the general population to radiation. Even if the risk from radiation to an individual is very small, exposure of a large number of people over time could translate into a considerable number of cancer cases.
- A recent report in The Lancet attempts to quantify the risk of cancer induction from diagnostic x-ray procedures, averaged over the population.Their analysis suggests that in Australia about 431cancers per year (1.3% of all cancers) could be attributable to diagnostic x-rays
- The total population dose of radiation from medical diagnostic procedures is increasing worldwide, mainly due to the increase in CT scanning.
- It is easy to overlook the possible side effects of radiation, particularly if the risk is very low and the effect may not become apparent for years.
- Children are also more susceptible to the carcinogenic effects of radiation than adults.
- One area in which risk is considered to outweigh benefit is whole-body CT screening of healthy asymptomatic people.
- Estimated Risks of Radiation-Induced Fatal Cancer from Pediatric CT
- Reducing Radiation Exposure from Survey CT Scans
- CT Dose Reduction in Pediatric Patients
- Low-Dose Chest CT: Optimizing Radiation Protection for Patients
- Computed Tomography and Radiation Risks: What Pediatric Health Care Providers Should Know
- What are the Radiation Risks from CT?
- Physics tutorial Topics in CT
- Dose Performance of a 64-Channel Dual-Source CT Scanner
Latest page update: made by gmack
, Aug 5 2007, 3:45 AM EDT
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