Scanner quality control to detect shift or drift is accomplished by imaging what object?

Question

Quizplus · Accepted Answer

A phantom is an object designed to simulate the properties of human tissue and is commonly used to test the performance of medical imaging equipment, including CT scanners. By imaging a phantom at regular intervals, any shifts or drifts in the scanner can be detected and corrected, ensuring the accuracy and reliability of the imaging results. Filters, grids, and patients may also be used in imaging, but they do not provide the same level of control and consistency as a phantom.

Scanner Quality Control to Detect Shift or Drift Is Accomplished