Medical CT Artifact Analysis: Reason and Correction

Based on the fact that currently hospitals CT devices are almost the 3<sup<rd</sup< generation CT principle, comparing the difference of real CT device and ideal one, this paper analyzes the common artifacts existing in the 3rd CT, its reason and how to correct them. This will help the CT researcher, doctors and serve engineers to deepen the comprehension for CT artifacts, and help them to do the trouble shooting work more effectively.