Orthogonal-biplane imaging (xplane) is a relatively new tool and provides comprehensive information about mitral valve and left atrial appendage evaluation. On the other hand, x plane method is a promising method in diagnosis of semilunar valve pathologies. Below, we report two cases, in which xplane method was used in order to clairify diagnosis. Case 1 : 63 year old male patient with dyspnea admitted to our clinic. Right ventricular dilatation and hypertrophy were assessed. In order to determine the exact reason of right ventricular pressure overload, pulmonary valve was evaluated by xplane and bicuspid pulmonary valve was represented.This patient has been undergone to pulmonary valve percutaneous valvuloplasty. Case 2 48 year-old male patient with historu of cerebrovascular event was admited to our hospital. His initial transthorasic and transoesaphageal echocardiography showed hyperechoic mobile mass on non-coronary cusp. However, after xplane was used to detect aortic valve,it was the prolapsed part of the non-coronary cusp adjacent to  the commissure.