<prompt> Intracavitary electrocardiography is a diagnostic aid in-Tricuspid regurgitationEndocardial fibroelastosisEndomyocardial fibrosisEbsteins anomaly of the tricuspid valve  <response>: Ans. is d i.e., Ebsteins anomaly of tricuspid valve Four chambered view in two dimension echocardiogram is diagnostic as it outlines the displaced tricuspid valve. 