ECHO/ DOPPLER CARDIOGRAPHY

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ECHO/ DOPPLER CARDIOGRAPHY

• A diagnostic Study that reveals information
  about
• The structure and function of the heart
• Cardiac hemodynamics of the heart

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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

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THEORY AND TECHNIQUE CONTD

• Utilizing the technique of doppler with
  ultrasound allows the ability to quantitate the
  direction and velocity of objects

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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

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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.

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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

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THIS TECHNIQUE ALLOWS THE EVALUATION OF

• Other objects- vegetations etc.
• Mechanical valves
• Pacemaker wires

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ABNORMAL IMAGES

• LEFT VENTRICULAR FUNCTION

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VALVULAR DISEASE

• AORTIC VALVE

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MITRAL VALVE
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CARDIOMYOPATHY
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PACEMAKER WIRE
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STRESS ECHOCARDIOGRAPHY
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