Stress Nuclear Perfusion Imaging

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.

  1. Assessment of presence and extent of myocardial ischemia
  2. Risk stratification of patients with recent acute myocardial infarction
  3. Evaluation/Assessment of cardiac patient’s treatment plan
  4. 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

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