What is a disadvantage of MRI scans?

• A. High radiation exposure
• B. Risk of claustrophobia
• C. Only shows structural images
• D. Requires a recovery period

Answer: (B)

The disadvantage related to claustrophobia in MRI scans is notable because the design of MRI machines often involves a narrow, enclosed space. Patients lie inside a tube-like structure that can provoke feelings of anxiety or panic, especially in individuals with a predisposition to claustrophobia. This discomfort may lead some patients to refuse the scan or require additional intervention, such as sedation, to complete the procedure, ultimately complicating the diagnostic process.

In contrast, other options present inaccuracies concerning MRI scans. For instance, MRI does not involve high radiation exposure, as it uses magnetic fields and radio waves, making it a safer alternative to some other imaging techniques. Additionally, while MRI primarily provides structural images, it can also offer functional information, especially in fMRI, which tracks brain activity. Finally, MRI procedures typically do not require a recovery period, as they are non-invasive and allow patients to resume normal activities immediately after the scan.