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    The authors describe a previously unreported Doppler signal associated with mitral regurgitation (MR) as imaged using transthoracic echocardiography. Horizontal “splay” of the color Doppler signal along the atrial surface of the valve may indicate significant regurgitation when the MR jet otherwise appears benign.

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    • Speaking of side lobe artifacts Have you seen side-lobe artifacts due to a high-flow regurgitant jet that creates splay? https://t.co/Ns7CCt8x4Z Horizontal splay may be a clue to presence of severe MR when main body of jet is out of the imaging plane @JournalASEcho #Artifacts https://t.co/XNgPpUuEum https://t.co/LUnyedfByX