Clinical Data Collection and Evaluation of ECG-Less Cardiac CT

"Administration of medications and biologic products (such as contrast agent administration, and potentially beta-blockers and other medications) will be given according to standard hospital care.~This is a prospective research study evaluating an investigational workflow on an existing CT device that has regulatory clearance. The investigational workflow includes preforming the CT acquisition according to the hospital's usual care with the exception that the ECG signal which triggers the scan will be coming from an ECG simulator based on an estimate of the patient's heart rate, rather than through ECG leads connected to the subject. Clinically-indicated Cardiac CTs take approximately 30-60 minutes. No additional imaging is needed as part of the study."