CT Dosimetry: Comparison of Measurement Techniques and Devices

In x-ray computed tomography (CT), the most common parameter used to estimate and minimize patient dose is the CT dose index (CTDI). The CTDI is a volume-averaged measure that is used in situations...

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American College of Radiology White Paper

The benefits of diagnostic imaging are immense and have revolutionized the practice of medicine. The increased sophistication and clinical efficacy of imaging have resulted in its dramatic growth over the past quarter century...

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Radiation Emergencies

When scientists measure radiation, they use different terms depending on whether they are discussing radiation coming from a radioactive source, the radiation dose absorbed by a person, or the risk that a person will suffer health effects...

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Diagnostic Reference Levels

Diagnostic reference levels were first mentioned by the International Commission on Radiological Protection (ICRP) in 19901 and subsequently recommended in greater detail in 1996 2. From the 1996 report...

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