Example of a partially thickened lead at intracardiac echocardiography (ICE). Home view showing normal thickness of the proximal part of the lead in the right atrium (white arrow head), but evident thickening in the distal atrial part and in its ventricular course (≥4 mm, blue arrows); AO—aorta; RA—right atrium; RV—right ventricle; TV—tricuspid valve.