Echocardiology Flashcards
T/F:
You can make a diagnosis based on echocardiology alone
FALSE
Echocardiology is important for the diagnosis of
concurrent ________disease
thoracic
Echocardiology (cardiac ultrasound) can be used to acquire
what information?
Chamber size and wall thickness
Cardiac motion and function
Contractility
Detection of valvular lesions and masses
Differentiating between cardiomegaly and pericardial effusion
T/F:
You will want to sedate an animal for echocardiology because
motion can obscure the results
FALSE!
NEVER SEDATE (due to CV changes that will occur with meds)
What position do you begin in for echocardiology?
RIGHT lateral recumbency
What are the 3 main modes of echocardiology?
B-Mode
M-Mode
Doppler
Which mode is used to assess longitudinal and transverse planes
and provides anatomic information such as info about:
masses
valves (abnormalities)
septal defects
cardiac function and size
B-Mode
Which mode is used for measurements such as:
wall thickness
chamber size
fractional shortening
valve movement pattern
M-Mode
Which mode is used to determine if blood flow in the heart is normal
or abnormal, and gives info about insufficiencies and stenosis?
Doppler
In doppler principle, the ANGLE is critical.
Blood flow must be a certain angle to the US beam.
You should maintain the angle at less than _______degrees,
otherwise, there is a greater than _______% error
<22 degrees
>10% error
What does “Below Baseline” mean in regards to
Spectral Doppler?
Below baseline = AWAY FROM THE TRANSDUCER
Blood flow from LV out aorta (away from probe) shows up below baseline
What position should a patient be in for Doppler measurements?
LEFT lateral recumbency
A color doppler indicates __________ flow, which
is bright and a mix of colors
turbulent flow
(I.E.: Mitral or Aortic Insufficiency)
If on color doppler you see a colorful jet going
FROM the aorta TO the left ventricle,
what problem is occurring?
Aortic Insufficiency
Fractional shortening, measured by M-Mode, is the
Index for ___________
Contractility
