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Educational Resources

 

History of CT

 

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Computerized axial tomography or CAT scanning revolutionized the field of medicine after its introduction in the early 1970’s.  For the first time, doctors could see actual images inside the human skull and directly diagnose abnormalities of the brain.  Today, CT is much more than a brain scanner.  The images produced give detailed, 3-dimensional information inside the body from head to toe allowing doctors to make rapid, accurate clinical decisions about a patients care without surgeries or useless “medical trials”.  Click below to get the full story about the CT scanner and see how a British engineer, a record company and one of the greatest rock-n-roll bands made it all come together. (26 minutes)


History of X-Ray

 

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Working alone in his first floor laboratory on November 8th, 1895, University of Wurzburg professor of physics, Wilhelm Conrad Roentgen noticed a faint glow of light from a board on his work bench.  Realizing the glow was related to the discharge from a Crookes tube a few feet away, he set off to characterize this mysterious new light which he labeled “x’ for the algebraic symbol of the unknown.  Over the next few weeks, he carefully documented the properties of his new discovery and introduced the world to x-rays just before Christmas of 1895.


Today, x-rays are used throughout multiple industries including research, manufacturing and, of course medicine.  Click below to see a 19 minute video detailing the discovery and utilization of x-rays



History of CT and
Radiation Exposure

 

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Click here to play part B

CT scanning has undeniably revolutionized the field of medicine. With advancements in scanner technologies over the past few decades, we have seen more clinical indications thus vastly increasing usage over the same time period. In 1990, the US performed 13 million CT scans nationwide. That number increased 4 fold by 2006. Radiation exposure from medical devices compromised 15% of our total annual radiation in 1987 and almost 50% of our total exposure in 2006. As such, the public has recently, and rightfully, expressed concern about the risk of medical radiation. Click below to see a 32 minute video describing the evolution of CT scanning and the methodologies manufacturers and we at Radiology Associates are using to minimize exposure and maximize the diagnostic utility of the modern CT scanner.

 

 

 

 

 

 

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