What thickness defines mild MAC?

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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

What thickness defines mild MAC?

Explanation:
Thickness of mitral annular calcification on echocardiography is used to gauge severity. Mild MAC shows as a small amount of calcified thickening around the annulus, typically measuring about 1.5 to 5 millimeters. This range reflects noticeable but not extensive calcification that’s confined to the annulus itself. If the thickness were below around 1.5 mm, it’s often considered trace or minimal and not categorized as mild MAC; thickness in the 6–10 mm span indicates more substantial, moderate calcification; greater than about 10 mm would be considered severe. So the 1.5–5 mm range best corresponds to mild MAC and helps explain why this choice is correct.

Thickness of mitral annular calcification on echocardiography is used to gauge severity. Mild MAC shows as a small amount of calcified thickening around the annulus, typically measuring about 1.5 to 5 millimeters. This range reflects noticeable but not extensive calcification that’s confined to the annulus itself. If the thickness were below around 1.5 mm, it’s often considered trace or minimal and not categorized as mild MAC; thickness in the 6–10 mm span indicates more substantial, moderate calcification; greater than about 10 mm would be considered severe. So the 1.5–5 mm range best corresponds to mild MAC and helps explain why this choice is correct.

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