The y-axis of the A-mode represents _______.

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Sharpen your skills for the Davies Publishing SPI Test with targeted flashcards and multiple-choice questions, complete with hints and clarifications. Prepare thoroughly for success!

Multiple Choice

The y-axis of the A-mode represents _______.

Explanation:
In A-mode ultrasound, the signal is displayed with time (and thus depth) along the horizontal axis, while the vertical axis shows how strong the echo is. The height of each spike corresponds to the amplitude of the reflected signal from a tissue interface. So, the y-axis represents the reflection amplitude. Depth of reflectors is inferred from when the echo appears on the horizontal axis, distance to the transducer isn’t plotted as a vertical measure, and pulse duration is a property of the emitted pulse rather than the height of the display.

In A-mode ultrasound, the signal is displayed with time (and thus depth) along the horizontal axis, while the vertical axis shows how strong the echo is. The height of each spike corresponds to the amplitude of the reflected signal from a tissue interface. So, the y-axis represents the reflection amplitude. Depth of reflectors is inferred from when the echo appears on the horizontal axis, distance to the transducer isn’t plotted as a vertical measure, and pulse duration is a property of the emitted pulse rather than the height of the display.

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