Echocardiology Flashcards
Advantages of Echocardiology
Non invasive real time imaging of the beating heart
Anatomic detail can be accurately visualized
Cardiac measurements of the size and function
Grading of cardiac disease
Evaluate therapy success
Interventional steps can be taken
Disadvantages of Echocardiology
diagnosis of cardiac failure cannot be based on echocardiology alone
What transducer should be used for echocardiology of large dogs?
3.0-5.0 MHz
What transducer should be used for echocardiology of small dogs?
5.0-7.5 MHz
What transducer should be used for echocardiology of cats?
7.5-10mHz
What imformation can we collect from cardiac ultrasound?
Chamber size Wall thickness Contractility Cardiac motion Cardiac function Valvular lesions Detection of masses Cardiomegaly vs. pericardial effusion
What are the modes used in Echocardiology?
M-mode
B-Mode
Doppler Mode
B-Mode
Real Time tomographic views of the heart
M-Mode
Only structures associated with the cursor will be scanned
When is M-Mode used?
Measurement of Wall thickness, Chamber size, Fractional shortening, valve movement pattern
Doppler echocardiography
to determine normal and abnormal blood flow in the heart
When is Doppler echocardiography used?
Insufficiencies and stenosis
What does spectral doppler measure?
Velocity and direction along y-axis
What recumbency are Doppler measurements taken from?
Left Lateral recumbency
What does Turbulent flow look like on Doppler?
flow (regurgitation) is often a bright mixture of colors
