Echocardiography is based on ____ waves Share with your friends Share 0 Raveena Sharma answered this Echocardiography is based on ultrasonic waves. 2 View Full Answer Ankit Kumar answered this Sound waves -1 Prithvi Raj Singh answered this Echo Cardio Graphy is based on the usage of principle of ultrasonic waves having frequencies more than (20000hz ) . 2 Ranit answered this Ultrasonic waves are used for echocardiography as the rays passes through our body and helps to get a picture of the heart. 2