<p>For a brief moment, Dr. Thomas Giannulli, a Seattle internist, thought he was getting in at the start of an exciting new area of medicine. He was opening a company to offer CT scans to the public - no doctor's referral necessary. The scans, he said, could find diseases like cancer or heart disease early, long before there were symptoms. And, for the scan centers, there was money to be made.</p>
