Increasing the number of transmit focal zones affects the frame rate by which of the following?

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Prepare for the Ultrasound Transducers Test with flashcards and multiple-choice questions. Each question includes hints and explanations to help you pass with confidence.

Multiple Choice

Increasing the number of transmit focal zones affects the frame rate by which of the following?

Explanation:
Increasing the number of transmit focal zones means the system must focus at multiple depths for each image line, which requires more transmit–receive cycles to complete a frame. Each additional focal zone adds time to send pulses and gather echoes, so the time per frame grows. Since frame rate is the number of frames produced per second, that extra time reduces how many frames can be acquired in one second. In short, more focal zones improve lateral resolution but slow down the scan. If you want a higher frame rate, fewer focal zones are used.

Increasing the number of transmit focal zones means the system must focus at multiple depths for each image line, which requires more transmit–receive cycles to complete a frame. Each additional focal zone adds time to send pulses and gather echoes, so the time per frame grows. Since frame rate is the number of frames produced per second, that extra time reduces how many frames can be acquired in one second. In short, more focal zones improve lateral resolution but slow down the scan. If you want a higher frame rate, fewer focal zones are used.

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