Practice Test Geeks(CET) Certified Echocardiography Technician Practice Test
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Doppler Echocardiography & Spectral Analysis Flashcards

7 cards from real CET practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Doppler Echocardiography & Spectral Analysis flashcards as text

  1. The E/e' ratio obtained by combining mitral inflow E wave and tissue Doppler e' velocity is used to estimate:

    Answer: Left atrial pressure and diastolic filling pressures

    The E/e' ratio correlates with left ventricular filling pressure (LVEDP/PCWP) and is a key parameter in grading diastolic dysfunction.

  2. Which Doppler finding is characteristic of constrictive pericarditis when compared to restrictive cardiomyopathy?

    Answer: Respiratory variation >25% in mitral E-wave velocity

    Constrictive pericarditis typically shows >25% respiratory variation in mitral inflow E-wave velocity due to ventricular interdependence, unlike restrictive cardiomyopathy.

  3. Proximal isovelocity surface area (PISA) is used in echocardiography to calculate:

    Answer: Regurgitant flow rate and effective regurgitant orifice area

    PISA uses the hemisphere of flow convergence proximal to a regurgitant orifice to quantify regurgitant flow rate and effective regurgitant orifice area (EROA).

  4. When measuring the aortic valve area by the continuity equation, which three parameters are required?

    Answer: LVOT diameter, LVOT VTI, and aortic VTI

    The continuity equation (A1×VTI1 = A2×VTI2) requires LVOT cross-sectional area (from diameter), LVOT VTI, and aortic jet VTI to calculate aortic valve area.

  5. In a patient with mitral regurgitation, the vena contracta is best defined as:

    Answer: The narrowest portion of the regurgitant jet just distal to the orifice

    The vena contracta is the narrowest cross-section of the regurgitant color jet, located immediately downstream from the orifice, and directly reflects orifice size.

  6. What does a peak tricuspid regurgitation jet velocity of 3.5 m/s indicate when estimating right ventricular systolic pressure (RVSP)?

    Answer: RVSP ≈ 49 mmHg plus right atrial pressure

    Using 4V², the gradient = 4×(3.5)² = 49 mmHg; RVSP = TR gradient + estimated right atrial pressure.

  7. Pulmonary vein Doppler showing blunted systolic (S) wave with predominant diastolic (D) wave and prominent atrial reversal (Ar) suggests:

    Answer: Elevated left atrial pressure and impaired relaxation grade III or IV

    Blunted pulmonary vein S wave with dominant D wave and Ar duration >30 ms longer than mitral A duration indicates elevated left atrial pressure, consistent with advanced diastolic dysfunction.