A new study from Rensselaer Polytechnic Institute is the first to calculate exactly how much additional radiation obese patients receive from a CT scan. Research results show the internal organs of obese men receive 62 percent more radiation during a CT scan than those of normal weight men. For obese women, it was an increase of 59 percent.
New technology developed at Rensselaer by nuclear engineering expert X. George Xu could help solve this problem. Xu's research team created ultra-realistic 3-D computer models of overweight and obese men and women, and used computer simulations to determine how X-rays interact with the different body types. These models, known as "phantoms," can help empower physicians to configure and optimize CT scanning devices in such a way that minimizes how much radiation a patient receives.