These views are obtained by placing the transducer in the  suprasternal notch with the ridge pointing cephalad. The neck is extended during the  suprasternal notch examination. This position may  be  uncomfortable for many patients. It provides a view of the arch of the aorta and  includes the great vessels in the majority of patients and positions of the main pulmonary artery.
Right Parasterdal Windows
It  is a view obtaineld in right  lateral decubitus position with  the transducer in  the right parasternal arda and can be helpful  in evaluating the ascending aorta and the  interatrial septum.