ECHO/ DOPPLER CARDIOGRAPHY

1. ECHO/ DOPPLER CARDIOGRAPHY • A diagnostic Study that reveals information about: The structure and function of the heart Cardiac hemodynamics of the heart

2. THEORY AND TECHNIQUE OF THE STUDY Utilizes the Application of Ultasonic waves being reflected back on hitting a structure This is done utilizing a transducer that both sends out the beam and then receives it back The transducer can have one crystal or multiple crystals

3. THEORY AND TECHNIQUE CONT’D: • Utilizing the technique of doppler with ultrasound allows the ability to quantitate the direction and velocity of objects

6. APPLICATION OF THE TECHNIQUE: • M mode echo • 2 DIMENSIONAL ECHO: • Tran thoracic Echo- transducer directly on the chest wall • Transesophageal Echo- probe placed into the esophagus and stomach • Stress echocardiography- Tran thoracic echo at rest and post stress or exercise

7. APPLICATION OF THE TECHNIQUE: • Doppler can be viewed as: • Continuous wave- continuous transmission of signal with 2nd transducer available to receive the signal • Pulsed Doppler- same probe transmits, waits an the receives • Color flow- vectors directions given colors, usually blue if flow is away from transducer and red if goes toward the transducer.

15. THIS TECHNIQUE ALLOWS THE EVALUATION OF: Cardiac Chambers- size and motion or function The thickness of the walls of the heart Abnormal Objects in the heart: tumors or masses Valvular structure (size and shape) Valvular function (thickness, stenosis, or leakage) Blood flow- hemodynamics Other pathologies- fluid: pericardial effusion

16. THIS TECHNIQUE ALLOWS THE EVALUATION OF: Other objects- vegetations etc. Mechanical valves Pacemaker wires

27. ABNORMAL IMAGES LEFT VENTRICULAR FUNCTION

30. VALVULAR DISEASE AORTIC VALVE

35. MITRAL VALVE

42. CARDIOMYOPATHY

43. PACEMAKER WIRE

44. STRESS ECHOCARDIOGRAPHY