SPI Exam Dumps | Which factor has a positive effect on temporal resolution?

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Question 21/99

Which factor has a positive effect on temporal resolution?

A. Increase in scan depth

B. Use of spatial compounding

C. Increase in number of focal zones

D. Use of narrow sector width

Correct Answer: D

* Temporal resolution refers to the ability to accurately depict moving structures over time.
* A narrow sector width reduces the area being scanned, which increases the frame rate because fewer scan lines are required per frame.
* Higher frame rates improve temporal resolution, allowing for better visualization of fast-moving structures.
* Other factors like scan depth and the number of focal zones also affect frame rate but typically reduce it when increased, thereby decreasing temporal resolution.References:
* ARDMS Sonography Principles and Instrumentation guidelines on factors affecting temporal resolution and frame rate.

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