MR jet directed posteriorly indicates prolapse of which leaflet?

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Prepare for the Ultrasound Registry Review (URR) MV Abnormalities and Disease Test. Enhance your studies with quizzes, flashcards, and detailed explanations. Pass your exam with confidence!

Multiple Choice

MR jet directed posteriorly indicates prolapse of which leaflet?

Explanation:
The direction of the mitral regurgitant jet follows the lesion: when the anterior mitral leaflet is prolapsing, the regurgitant orifice is on the anterior side and the high-velocity jet is directed toward the posterior wall of the left atrium. So a jet directed posteriorly indicates anterior leaflet prolapse. If the posterior leaflet were prolapsing, the jet would typically be directed anteriorly toward the anterior left atrial wall.

The direction of the mitral regurgitant jet follows the lesion: when the anterior mitral leaflet is prolapsing, the regurgitant orifice is on the anterior side and the high-velocity jet is directed toward the posterior wall of the left atrium. So a jet directed posteriorly indicates anterior leaflet prolapse. If the posterior leaflet were prolapsing, the jet would typically be directed anteriorly toward the anterior left atrial wall.

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