Echocardiography (ultrasound): to show any thickening of the heart valve edges or enlargement of the chambers of the heart (epictrial.com)
We were studying the effects of two commonly utilized medications — butorphanol, a mild sedative commonly used to help facilitate heart ultrasounds and atenolol, a beta - blocker commonly utilized to help treat PS and SAS — on heart function and assessment of disease severity in dogs with PS and SAS. (vetmed.ucdavis.edu)
Ultrasound (echocardiogram of the heart) to confirm the diagnosis and evaluate the size and function of the heart (tampabayvets.net)