Click on image to view larger version.

Figure 2 Echocardiographic and electroanatomic mapping of the RV in one of the patients with ARVD. A, Two-dimensional echocardiographic apical view of Patient 2. Note the severe enlargement of the RV and atrium. B, Anteroposterior (left) and left anterior oblique (right) views of the RV unipolar voltage maps of the same patient. Note the extensive area of low voltage (red indicates <2 mV) in the apex and anterolateral free wall, with the septum being spared (purple indicates >5 mV). LA = left atrium; RA = right atrium; RVOT = right ventricular outflow tract.