Low-Dose Dobutamine Tissue-Tagged Magnetic Resonance Imaging With 3-Dimensional Strain Analysis Allows Assessment of Myocardial Viability in Patients With Ischemic Cardiomyopathy

Abstract

Noninvasive dobutamine tissue-tagged MRI with calculation of 3D strain allows the identification, quantification and display of regionally varying ventricular function. The response of systolic strain to low-dose dobutamine has significant promise in discriminating between viable and nonviable myocardium.