CVT 2621 - Cardiac Ultrasound 2 CVT 2621 - Cardiac Ultrasound 2 Instruction is provided in the application of theory, techniques, and interpretation of two-dimensional echocardiography, M-mode, color-flow imaging, and pulsed and continuous wave doppler. Advanced techniques in echocardiography are also discussed, such as stress and pharmacologic echocardiography, transesophageal echocardiography, and contrast echocardiography. Occupational (A.S. and A.A.S.)