What technological method distinguishes CT scans from MRIs?

CT scans are distinguished from MRIs primarily by their use of X-rays. A CT scan utilizes a series of X-ray images taken from different angles and applies computer processing to create cross-sectional images of bones, blood vessels, and soft tissues inside the body. This method relies on ionizing radiation to capture detailed internal images, resulting in a clear view of internal structures, especially in diagnosing conditions related to trauma, cancer, and diseases of the internal organs.

In contrast, MRI (Magnetic Resonance Imaging) operates using strong magnetic fields and radio waves to generate images, which is fundamentally different from the X-ray technology employed in CT scans. This distinction in technology is crucial for healthcare professionals in determining the best imaging modality based on the patient's specific medical conditions and the type of tissue that needs to be evaluated.

The other options provide incorrect information about the imaging technologies and do not accurately describe the fundamental differences that characterize CT scans compared to MRIs.