Figure 6
Overview of left and right ventricular cardiac electroanatomic substrate mapping. (A) Attenuated bipolar electrograms from the LV endocardium. (B) Endocardial biventricular substrate maps in the left lateral projection. (C) Endocardial biventricular substrate maps in the LAO projection. B and C show patchy zones of bipolar voltage attenuation with areas in red corresponding to dense scar (voltage < 1.5 mV). (D) Significant endocardial LV unipolar voltage attenuation in the LAO projection. (E) Abnormal low voltage epicardial. (F) LAO caudal projection of an epicardial substrate map showing relative epicardial bipolar voltage preservation. LV left ventricle, LAO left anterior oblique, RAO right anterior oblique, AP anteroposterior.
