Which is the most likely cardiac structure noted in this TEE 2D color and PW Doppler image is indicated by the arrow?

During evaluation of a patient with a continuous-flow LVAD, the aortic valve is noted to remain closed throughout systole. Which complication is MOST likely to develop if this finding persists?  

A 1-day-old neonate presents to the intensive care unit in cardiogenic shock. An emergency echocardiogram reveals the following 2D SAX and Apical 4 chamber views. What is the most likely diagnosis and which critical images must you, the sonographer, obtain?

The primary echocardiographic hallmark of an aortic dissection is:  

What is the most likely source of the artifact noted in this 2D color Doppler image?

When imaging a patient in the cardiac ICU, you image an Impella cannula placement in the long axis view, where should the cannula measured and what is the correct length for this measurement?

While performing a routine echocardiogram on a newborn in the nursery you obtain the following 2D image in the apical 4 chamber view. What is the most likely cardiac diagnosis based on this 2D image?

A neonatal patient presents for an echocardiographic evaluation to rule out anomalous pulmonary venous return. The sonographer optimizes the color Doppler Nyquist limit and obtains a high parasternal/suprasternal short-axis view, frequently referred to as the “crab view”, to visualize the pulmonary veins draining into the left atrium. Which of the following statements best describes following 2D image with color Doppler?

Which cardiac structure is noted by the arrow in this 3D image?

During a routine echocardiogram on a newborn you visualize a structure with a left to right shunt in the high left parasternal view. Anatomically, what is this structure and which structures does it form a direct conduit between?