As a Family Practice doctor this sounds wounderful. Much cheaper. Less dangerous. No need to ship patient to another hospital(saves on time and money of ambulance or helo),saves on unnecessary hospitilizations---hence money. Helps to not overtreat patients as unstable angina with some risky medications. Would cut down on the worry of missing a real heart problem us just reflux etc. Sounds wonderful. Yes it would cut down on the income for cardiologists but I don't care. Most are over worked and they will still make big money doing stent placements and other things.
The radiologists can't put in stents etc. The scans are just another cool diagnostic toy for the cardiologists. They're going to have to deal with the false positives and negatives in real time on real people and make the critical judgement calls.