What is a 3T MRI scanner used for?

MRI uses a strong magnetic field and radio waves to create images; it does not use ionising radiation. The higher field strength can support detailed imaging, although the useful choice depends on the body area, the clinical question, and the scanner protocol. You lie still while the table moves through the scanner, and the machine makes loud sounds. A [Musculoskeletal MRI](/treatments/diagnostics-and-imaging/musculoskeletal-mri/) report is interpreted with your symptoms and examination.

Tell the imaging team about pacemakers, implanted pumps, metal fragments, surgical clips, hearing devices, pregnancy, kidney problems, and claustrophobia before the appointment. Remove metal items as instructed and follow any food or drink directions. During the scan, stay as still as you can and use the call button if you need help. Contrast may be considered for some questions; the team will explain why it is proposed and check relevant safety details.

An MRI appointment is usually planned rather than an emergency service. Seek urgent medical help for a new limb deformity, sudden weakness, loss of bladder or bowel control, severe injury, or numbness around the groin. Contact the imaging team before scanning if you are unsure about an implant or metal exposure; do not guess about MRI safety.

Ask: What question is the MRI intended to answer? Is a 3T scanner suitable for my implant and body area? Will contrast be needed? When will the report be reviewed alongside my examination?