Echocardiography Imaging Techniques 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 Echocardiography Imaging Techniques flashcards as text
During a transesophageal echocardiogram (TEE), the mid-esophageal four-chamber view is obtained at approximately which depth from the incisors?
Answer: 25-30 cm
The mid-esophageal position is typically located 25-30 cm from the incisors, placing the probe adjacent to the left atrium.
Which artifact appears as multiple equally spaced lines parallel to a strong reflector and is caused by the ultrasound beam bouncing between two highly reflective surfaces?
Answer: Reverberation artifact
Reverberation artifacts occur when echoes bounce repeatedly between two reflective interfaces, creating false parallel lines at equal intervals on the image.
In the parasternal short-axis view at the level of the mitral valve, which structure appears as a 'fish mouth' opening during diastole?
Answer: Mitral valve
In the parasternal short-axis view at the mitral valve level, the anterior and posterior leaflets open in diastole, creating a characteristic fish-mouth or oval orifice appearance.
What is the primary advantage of using contrast echocardiography with agitated saline for a bubble study?
Answer: Detects intracardiac right-to-left shunts
Agitated saline microbubbles are too large to pass through the pulmonary capillaries, so their appearance in the left heart indicates a right-to-left shunt such as a patent foramen ovale.
Which parameter on the ultrasound machine controls the amplification of returning echoes from deeper structures to compensate for tissue attenuation?
Answer: Time-gain compensation (TGC)
Time-gain compensation (TGC) applies progressively higher amplification to echoes returning from greater depths, offsetting signal loss due to tissue attenuation.
The right ventricular inflow view in echocardiography is best obtained from which transducer position?
Answer: Parasternal window with rightward and inferior angulation
The RV inflow view is obtained from the parasternal position by tilting the transducer rightward and inferiorly to align with the tricuspid valve and right ventricular inflow tract.
When performing strain imaging using speckle tracking echocardiography, what does a negative longitudinal strain value indicate?
Answer: Myocardial shortening during systole
By convention, longitudinal strain is negative during systole because the myocardium shortens (contracts) in the longitudinal direction; more negative values indicate better deformation.