What does M-mode show?

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Prepare for the Ultrasound Physics Test. Access flashcards and multiple-choice questions, each with hints and explanations. Get set for your exam day!

Multiple Choice

What does M-mode show?

Explanation:
M-mode provides a one-dimensional, time-resolved view of motion along a single ultrasound line. It plots depth along the vertical axis and time along the horizontal axis, so you can watch how structures at specific depths move as time passes. This high temporal resolution is ideal for tracking rapid motions, such as cardiac wall and valve movements, along that line. It does not show amplitude versus depth like A-mode, it does not display Doppler frequency shifts, and it cannot provide 3D reconstructions.

M-mode provides a one-dimensional, time-resolved view of motion along a single ultrasound line. It plots depth along the vertical axis and time along the horizontal axis, so you can watch how structures at specific depths move as time passes. This high temporal resolution is ideal for tracking rapid motions, such as cardiac wall and valve movements, along that line. It does not show amplitude versus depth like A-mode, it does not display Doppler frequency shifts, and it cannot provide 3D reconstructions.

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