Inclusion Criteria:  ≥18 years of age at the time of enrollment diagnosis of breast cancer, lymphoma, or sarcoma with either planned or at 1 year after completion of anthracycline therapy.  Exclusion Criteria:  LVEF <50% or prior confirmed history of cardiomyopathy, heart failure, persistent atrial fibrillation, left bundle branch block, or paced rhythm Individuals with pacemakers, defibrillators or other implanted electronic devices