High School

If a ring artifact is identified in a scan, it might be prevented in future scans by:

A. Increasing tube current
B. Increasing pitch
C. Increasing detector rows
D. Regular calibration

Answer :

Final answer:

To prevent ring artifacts in future scans, regular calibration of the detectors in the CT scanner is necessary. This process corrects any discrepancies between the detectors, ensuring uniform operation and accurate data collection.

Explanation:

Correcting or preventing ring artifacts in CT scans is primarily achieved through regular calibration of the CT scanner system. Ring artifacts often result from miscalibration or malfunction of detectors within the CT scanner. Regular calibration is essential to ensure that all detectors in the array operate uniformly and accurately, preventing discrepancies in the data collected from different detectors.

While adjustments in tube current, pitch, and detector rows can impact image quality and resolution, these measures do not directly address the core issue of detector calibration. Regular calibration routines involve checking and adjusting the performance of individual detectors, minimizing the likelihood of ring artifacts appearing in future scans. This proactive approach helps maintain the accuracy and reliability of CT imaging, contributing to the production of high-quality diagnostic images without the interference of unwanted artifacts.