Transcript Echocardiography

ECHO/ DOPPLER
CARDIOGRAPHY

A diagnostic Study that reveals information
about:
The structure and function of the heart
Cardiac hemodynamics of the heart
THEORY AND TECHNIQUE OF
THE STUDY
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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
THEORY AND TECHNIQUE
CONT’D:

Utilizing the technique of doppler with
ultrasound allows the ability to quantitate
the direction and velocity of objects
APPLICATION OF THE
TECHNIQUE:
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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
APPLICATION OF THE
TECHNIQUE:

Doppler can be viewed as:
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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.
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
THIS TECHNIQUE ALLOWS THE
EVALUATION OF:
Other objects- vegetations etc.
Mechanical valves
Pacemaker wires
ABNORMAL IMAGES

LEFT VENTRICULAR FUNCTION
VALVULAR DISEASE

AORTIC VALVE
MITRAL VALVE
CARDIOMYOPATHY
PACEMAKER WIRE
STRESS
ECHOCARDIOGRAPHY