Source:http://linkedlifedata.com/resource/umls/id/C0183129
SPN: An echocardiograph is a device that uses ultrasonic energy to create images of cardiovascular structures. It includes phased arrays and two-dimensional scanners.,UMD: Cardiographs used for recording ultrasonic waves directed through the heart and reflected backwards (i.e., echoed). These cardiographs use a transducer that transmits and receives the ultrasonic waves, reproducing the sound characteristics in a diagram (echocardiogram). They are used for studying the structure, position, and motion of the heart and neighboring tissue.