Quantitative 13N-Ammonia Cardiac Rest/Stress Digital PET/CT

"Patients with coronary artery disease undergo a N-13 ammonia rest/stress PET/CT scan.~These patients are given:~1. One 5-10 mCI N13-ammonia (13N-NH3) intravenously and undergo a rest digital PET/CT scan of \~20 minute duration.~2. A dose of 0.4 mg regadenoson (Lexiscan) intravenously over 10 seconds to increase blood flow to the heart~3. One 5-10 mCi N13-ammonia (13N-NH3) intravenously and undergo a stress digital PET/CT scan of \~20 minute duration~Total patient time will take approximately up to 120 minutes."

5-10 mCi intravenous injection of N-13 ammonia radiopharmaceutical at rest and at stress

0.4 mg/5mL intravenous injection to induce pharmacologic stress (Astellas Pharma US, Inc.)