<prompt> Answer this question truthfullyWhat role does echocardiography or ultrasound play in the diagnosis of Eisenmengers syndrome?  <response>: <reason> Echocardiography is the first line imaging modality of Eisenmengers syndrome.Findings on an echocardiography suggestive of Eisenmengers syndrome include :Underlying cardiac lesion responsible for the shunt e.g. ASD or VSD. Direct of the shunt left-to-right or right-to-left. Elevated right ventricular systolic pressure. Elevated pulmonary artery diastolic pressure. 