Stress Adenosine Cardiac Magnetic Resonance (MR) Comparison With Single Photon Emission Computed Tomography (SPECT) Imaging

Stress Adenosine Cardiac MR Comparison With SPECT Imaging

This study is designed to determine the diagnostic value of adenosine cardiac magnetic resonance (CMR) when compared with SPECT.

The investigators hypothesized that adenosine CMR could detect ischemia and is not inferior to SPECT imaging. In addition stress adenosine cardiac MRI offers a "one stop shop" enabling evaluation of cardiac function, rest and stress perfusion and viability.

Inclusion Criteria:

• Suspected ischemia referred to SPECT stress imaging

Exclusion Criteria:

• Standard contraindications to MRI including (pacemaker/defibrillator, metallic clips on brain aneurysms, metal fragment in the eye, etc...)
• Congestive heart failure.
• Hemodynamic instability.
• History of asthma or bronchospastic disease.
• Arrhythmia
• Creatinine >1.4
• Non compliant patient, not able to lie supine in the MRI scanner for 1 hour.
• Pregnant patients
• Patients for whom the repeat stress might pose a significant risk.