Computed Tomography Technologist Exam 2025 – 400 Free Practice Questions to Pass the Exam

Slice misregistration in CT imaging involves errors that occur when there is a disparity between the actual anatomical slices being imaged and the expected position or alignment of those slices. This can result from various factors that affect how the images are captured and processed. The correct answer highlights missed data due to patient movement, which is a common cause of misregistration. When a patient shifts or moves during the scan, the resulting images may not accurately align with each other or with the intended anatomical structures, leading to discrepancies in how the slices register with one another.

The other suggestions pertain to different issues within CT imaging. Alignment errors refer specifically to the issues of how individual slices are positioned rather than the movement of the patient causing a mismatch in data capture. Inadequate sample size hints at the quantity of data captured during scanning rather than issues resulting from movement. Lastly, artifacts caused by equipment malfunctions relate more to defects in the imaging process itself as a result of faulty machinery rather than inaccuracies stemming from patient behavior. Understanding slice misregistration as primarily linked to patient movement helps in diagnosing and preventing this common imaging challenge.