Stress Nuclear Perfusion Imaging Indications
Also called a nuclear stress test, this procedure is an imaging test that measures the extent of blood flow to the heart (i.e., myocardial perfusion). Our technologists use this in conjunction with a patient’s stress test, and it can be conducted on a tread-mill, a stationary bicycle or by means of infusion of intravenous drugs to accelerate the heart rate. After the patient receives a small dose of radioactive tracer (thallium or technetium), our technologists use a mobile gamma camera to visualize the distribution of blood in the myocardium.
- Assessment of presence and extent of myocardial ischemia
- Risk stratification of patients with recent acute myocardial infarction
- Evaluation/Assessment of cardiac patient’s treatment plan
- Evaluation of patient’s ability/limitations to exercise safely
Diagnosis of coronary artery disease
- Presence
- Location (coronary territory)
- Severity
Assessment of the impact of coronary stenosis on regional perfusion
Help distinguish viable ischemic myocardium from scar
Risk assessment and stratification
- Postmyocardial infarction
- Pre-operative for major surgery in patients who may be at risk for coronary events
Monitor treatment effect
- After coronary revascularization
- Medical therapy for congestive heart failure or angina
- Lifestyle modification
