News tagged with ionizing radiation

New articles examine safety of airport security scanners

The Transportation Security Administration (TSA) has begun to use whole-body imaging scanners as a primary screening measure on travelers passing through airport security checkpoints. One type of scanner employs millimeter ...

Mar 16, 2011
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Functional boost for magnetic resonance imaging

Over the last few years, researchers have used a type of brain scanning, known as functional magnetic resonance imaging fMRI, to help them map changes in blood flow in the brain and to correlate this with thoughts and behavior. ...

Jan 18, 2011
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Cancer in a single catastrophe

Most of the time cancer seems to creep up gradually over time; cells become premalignant, then increasingly abnormal before they become cancerous. But sometimes cancers seem to pop up as if out of nowhere. Now, researchers ...

Jan 06, 2011
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Decades after childhood radiation, thyroid cancer a concern

When children are exposed to head and neck radiation, whether due to cancer treatment or multiple diagnostic CT scans, the result is an increased risk of thyroid cancer for the next 58 years or longer, according to University ...

Dec 16, 2010
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Expert panel addresses safety in medical imaging

An expert panel convened today at the annual meeting of the Radiological Society of North America (RSNA) to discuss medical imaging appropriateness, ionizing radiation from imaging procedures and efforts under way to curb ...

Dec 02, 2010
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