CAMRT Radiography Practice Exam

What are two ways that mis-registration can occur in an Angiography case?

1. Active and Passive motion

2. Directed and Indirected motion

3. Voluntary and involuntary motion

4. Automatic and Manual motion

The correct answer is: Voluntary and involuntary motion

The correct answer highlights two types of movements that can lead to mis-registration in an Angiography case: voluntary and involuntary motion. Voluntary motion refers to movements that are consciously controlled by the patient, such as during breathing or attempting to adjust position during the procedure. This type of motion can be particularly problematic during imaging, as even slight shifts can result in misalignment of the images, compromising diagnostic quality. Involuntary motion, on the other hand, occurs without conscious control and can include movements such as peristalsis (intestinal movement), cardiopulmonary motion (heartbeats and respiration), or spasms. This motion is often more difficult to anticipate and can also significantly affect the quality and accuracy of the angiographic images. Understanding these two forms of motion is crucial in angiography because they inform strategies for patient education, positioning, and potential use of sedation or motion-reduction techniques to minimize artifacts and enhance diagnostic outcomes.