Radiology Practice Test 2025 – 400 Free Practice Questions to Pass the Exam

Motion artifacts due to patient movement are indeed a common challenge faced during MR imaging. When patients move during the scan—whether due to discomfort, anxiety, or involuntary movements—it can lead to distortions and blurring in the images produced. This is particularly significant because MR imaging often requires specific positioning and stillness to obtain high-quality, clear images.

In MR imaging, the magnetic fields and radiofrequency pulses are sensitive to motion. Even slight movements can misalign the data collected during imaging, affecting image quality and diagnostic accuracy. Therefore, maintaining patient stillness is crucial, and various strategies, such as informing patients about the procedure and using comfort measures, are often employed to minimize this issue.

Other options, while they may present challenges in different contexts, do not represent the most common challenge encountered during MR imaging like motion artifacts do.