I found this article that pertains more to human medical treatments but I still have a concern about the use of this technique for an animal diagnosis as well. We all need to be alarmed at some of the treatments that can actually cause an unwanted condition for ourselves and our pets.
Many doctors and veterinarians are doing body scans to identify early cancers, tumors or other life-threatening problems that could then be treated early. The problem is that there are tens of thousands of false positives and lots of false negatives. The positives can lead to serious medical interventions and the negatives can give you a false sense of security. But the biggest concern I have is that the radiation in these scans can induce cancer. So the treatment can be the cause!
An article published in the New England Journal of Medicine (November 29, 2007) clearly shows that these scans are dangerous and often unnecessary super x-rays. In 2006 more than 60 million scans were performed and experts feel that a third of them were unnecessary. The alarming point is that the radiation from these scans is equivilent to 100 to 1500 chest x-rays and some folks get 3 to 4 scans a year! If you were to contract cancer caused by scans, no one would ever know it. It was determined that an ultrasound is a better alternative and if a real scan is needed then an MRI is best- better detail without the radiation.
Source- Health Alert/February 2008/Volume 25, Issue 2
posted by Rob Mueller