Which of the following conditions is not considered a contraindication for MRI?

Claustrophobia is not considered a strict contraindication for MRI. While patients with claustrophobia may experience anxiety or discomfort during the MRI procedure, there are several strategies that can be employed to help them undergo the scan safely. This includes offering sedation or the use of open MRI systems, which provide a broader space for the patient.

In contrast, the other conditions listed—pregnancy, presence of a pacemaker, and metal implants—are strict contraindications due to potential risks involved. For instance, the magnetic field of an MRI can interfere with the functioning of a pacemaker, and certain metal implants, especially those that are not MRI-safe, can pose risks of heating or movement during the scan. Though pregnancy itself is not an outright contraindication, special considerations may be taken into account regarding fetal exposure.

Thus, while claustrophobia can present challenges, it does not inherently prevent a patient from safely obtaining an MRI scan, making it the correct answer to the question.