Stress CMR Perfusion Imaging in the United States (SPINS) Study

Stress CMR Perfusion Imaging in the United States (SPINS) Study. A Society for Cardiovascular Magnetic Resonance (SCMR) Registry Study

Numerous single-center studies have indicated gadolinium-enhanced stress CMR perfusion imaging has excellent diagnostic accuracy for coronary artery disease and negative clinical event rates, with its diagnostic accuracy exceeding nuclear scintigraphy. However, current prognostic evidence supporting clinical use of stress CMR is limited by study size, single-center settings with a predominance of academic centers, and a lack of "real-world" study design. Large-scale multicenter real-world evidence from a registry will provide the much needed information to guide evidence-based clinical adaptation that benefits patient care.

Randomized multicenter studies have demonstrated the high accuracy of vasodilator stress cardiac magnetic resonance imaging (CMR) in detecting coronary stenoses and in estimating impaired flow reserve in coronary artery disease (CAD). Stress CMR has also been shown in many studies to be an effective cardiac prognosticating method for patients presenting with chest pain syndromes. The American College of Cardiology Foundation and American Heart Association have recommended stress CMR as an appropriate test for evaluation of symptomatic patients with intermediate to high pre-test probability for CAD. However, stress CMR remains an underutilized method in the United States. SPINS (Stress CMR Perfusion Imaging in the United States: A Society for Cardiovascular Resonance Registry Study) is a multicenter observational study of patients with stable chest pain syndromes designed to evaluate the long-term performance of stress CMR for cardiovascular prognosis and to investigate the cost of additional downstream cardiac testing following the index stress CMR.

Inclusion Criteria:

all of the following at time of imaging: a) male or female at age 35-85 years, b) presence of either of the following sign/symptom that led to stress CMR imaging

1. Symptoms suspicious of ischemia, or

2. abnormal ECG with a suspicion of coronary artery disease c) Intermediate or high risk of significant coronary disease based on at least 2 of the following conditions:

   1. patient age > 50 for male, 60 for female
   2. Diabetes: by either history or medical treatment
   3. Hypertension: by either history or medical treatment
   4. Hypercholesterolemia: by either history or medical treatment
   5. family history of premature coronary disease: first degree relative at age <= 55 male and <=65 female
   6. Body mass index > 30
   7. Any medical documentation of peripheral artery disease
   8. Any history of myocardial infarction or percutaneous coronary intervention

Exclusion Criteria:

1. Prior history of coronary artery bypass surgery (CABG)
2. Acute myocardial infarction within the past 30 days prior to CMR
3. any significant non-coronary cardiac conditions confirmed by medical documentation a. severe valvular heart disease, b. non-ischemic cardiomyopathy with left ventricular ejection fraction <40%, c. infiltrative cardiomyopathy, d. hypertrophic cardiomyopathy, e. pericardial disease with significant constriction, or
4. active pregnancy,
5. any competing conditions leading to an expected survival of < 2 years
6. Known inability to follow-up due to logistical reasons (e.g. patient lives in another country where follow-up is not feasible)