TN heart patients tested for radiation exposure after device recalled

More than 100 Tennesseans have been tested for radiation exposure as part of a nationwide effort to determine the safety of a widely used heart imaging device that has been recalled. The recall also factored into Baptist Hospital's decision to shut down its positron emission tomography (PET) department, while other hospitals have temporarily stopped using the devices for a type of cardiac test. The device under scrutiny is the CardioGen-82, a generator that produces the isotope used in the PET scans.