Myocardial Perfusion Imaging

Myocardial perfusion imaging (MPI) is a nuclear imaging test that evaluates blood flow to the heart muscle. It can help identify areas that may not be receiving adequate blood supply and assess differences in myocardial blood flow between rest and stress.
Cardiac PET can provide information about myocardial blood flow and perfusion, helping physicians assess whether different areas of the heart muscle are receiving an adequate blood supply. It may be used in the evaluation of suspected or established coronary artery disease, including situations where reduced blood flow may contribute to symptoms such as chest discomfort. MPI does not directly visualize the coronary arteries. Instead, it provides information about blood flow to the heart muscle, which can help identify areas of reduced perfusion and support further clinical evaluation.
At TMIC, 13N-ammonia (13N-NH3) is produced for cardiac PET imaging. This radiopharmaceutical can be used to assess myocardial perfusion at rest and during pharmacological stress in patients with suspected or established coronary artery disease. During a stress examination, a pharmacological stress agent is administered to temporarily increase blood flow through the coronary circulation. PET imaging is then performed under stress and at rest, allowing physicians to compare myocardial blood flow under these different conditions.
The specific examination and protocol are determined according to the patient’s clinical history and the clinical question being investigated.