In sector-based imaging, what happens to the number of scan lines when sector width increases?

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

In sector-based imaging, what happens to the number of scan lines when sector width increases?

Explanation:
In sector-based imaging, each scan line corresponds to a discrete ray within the fan-shaped sector. If you widen that sector, you must sample a larger angular range. With the angular sampling density kept the same (same lines per degree), you need more rays to cover the bigger angle. So the total number of scan lines increases as sector width increases. This preserves consistent angular resolution across the wider field, though it can affect data load and frame rate.

In sector-based imaging, each scan line corresponds to a discrete ray within the fan-shaped sector. If you widen that sector, you must sample a larger angular range. With the angular sampling density kept the same (same lines per degree), you need more rays to cover the bigger angle. So the total number of scan lines increases as sector width increases. This preserves consistent angular resolution across the wider field, though it can affect data load and frame rate.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy