Magnetic Resonance Adenosine Perfusion Imaging in Patients After Coronary Artery Bypass Graft Surgery

Magnetic Resonance Adenosine Perfusion Imaging in Patients After Coronary Artery Bypass Graft Surgery Christoph Klein, Eike Nagel, Rolf Gebker, Sebastian Kelle, Bernhard Schnackenburg, Kristof Graf, Stefan Dreysse, Eckart Fleck This study aimed to evaluate the diagnostic performance of combined adenosine stress perfusion cardiac magnetic resonance imaging with late gadolinium enhancement in patients after coronary artery bypass graft surgery, a population often excluded from previous studies. These patients were studied 1 day before invasive coronary angiography, and the sensitivity and specificity for significant stenoses were found to be ∼75% and 90%, respectively, on a per patient, vessel territory, and per graft basis. In the accompanying editorial, Dr. Plein points out how the combined evaluation of ischemia and scar is important in this patient population and notes where there is room for improvement.