Computed Tomography Technologist Practice Exam 2025 - Free CT Technologist Practice Questions and Study Guide

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In MDCT, what does scan time refer to?

The time for contrast to circulate

The time to make 1 complete 360-degree rotation

The term "scan time" in the context of MDCT (Multi-Detector Computed Tomography) specifically refers to the time required for the scanner to complete one full 360-degree rotation. This is crucial because it reflects the efficiency and speed of the CT imaging process, which impacts both image quality and patient comfort. A shorter scan time can reduce motion artifacts and enhance the clarity of the images acquired, ultimately contributing to better diagnostic outcomes.

In addition, while factors like contrast circulation, overall imaging time, and patient setup duration are important in the entire process of CT imaging, they do not directly define what scan time is. The distinction is critical for understanding how MDCT systems operate and the importance of rotation speed in obtaining high-quality images.

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The overall time to take images

The duration for patient setup

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