Mark E. Josephson, and Elad Anter JACEP 2015;1:341-352 Lack of Correlation Between Endocardial Unipolar Voltage Amplitude and Scar of MRI In this patient with hypertrophic cardiomyopathy and extensive scar as detected diffuse presence of late gadolinium enhancement on magnetic resonance imaging (MRI), the endocardial unipolar voltage amplitude was uniformly >7.5 mV. Bipolar filtering was 30 to 500 Hz and unipolar filtering was 0.05 to 500 Hz. Mark E. Josephson, and Elad Anter JACEP 2015;1:341-352 American College of Cardiology Foundation