Final answer:
An MRI procedure is true to not involve radiation exposure for the patient, using magnetic fields and radio waves instead. Disadvantages of MRI include high cost, need for shielding from magnetic signals, potential for claustrophobia, and less effectiveness for imaging bone compared to X-rays.
Step-by-step explanation:
A patient is not exposed to radiation during an MRI (Magnetic Resonance Imaging) procedure; this statement is true. Unlike X-rays or CT scans, MRI uses magnetic fields and radio waves to produce images, which means there is no exposure to radiation. However, there are still major disadvantages of MRI scans, including the high cost of the procedure and the need for shielding from the strong magnetic signals to prevent interference with other equipment and to ensure patient safety.
Other disadvantages include the potential for claustrophobia as the patient is confined to a tube-like space during the procedure, which can last up to 30 minutes or more. MRI also is not effective for imaging certain types of tissues, such as bone, when compared to X-rays. It's also worth noting that while overexposure to X-rays can increase the risk of cancer, MRI procedures carry none of these risks related to ionizing radiation.