Can a person who has a pacemaker have a CT scan?
CT scanners use X-rays to generate images, so a person who has a pacemaker can get a CT scan without any difficulty. Another type of imaging, a technique called Magnetic Resonance Imaging (MRI), uses a strong magnetic field to generate images of the human body. The magnetic field generated by the MRI machine can interfere with a metallic pacemaker. People with pacemakers should not even get close to an MRI scanner.
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