- Published: Tuesday, 27 January 2015 20:57
- Written by YNN
Yuma, Arizona - X-rays have been used for almost 120 years and computed tomography, or CT scans, were introduced in the 1970’s. These newer scans allow doctors to see with unprecedented precision the inner workings of the human body through the use of multiple X-ray images. Their use has grown from fewer than 3 million per year in 1980 to more than 80 million today.