What should you know about a seated MRI scanner?

MRI uses a strong magnetic field and radio waves to create detailed images rather than ionising radiation. A seated system has a different design from the long, enclosed tunnel used by many conventional scanners. The position can be useful when a person cannot lie flat comfortably or feels distressed in a narrow space.

The scanner is not automatically suitable for every examination. Image quality, the body region being assessed, the need for contrast and the equipment available at the imaging centre all matter. A radiologist decides whether the resulting images can answer the clinical question.

Tell the imaging team about pacemakers, implanted pumps, metal fragments, clips, hearing devices, medication patches and any previous surgery. Remove jewellery, cards, keys and other metal items as instructed. Mention pregnancy, kidney problems, allergies and difficulty staying still before contrast or sedation is arranged.

Wear comfortable clothing without metal fasteners and follow the centre’s instructions about eating or drinking. During the scan, you may hear knocking sounds and need to keep the target area still. You can usually communicate with the technologist throughout the examination.

Contact the imaging team promptly after a scan if you develop a new rash, facial swelling, breathing difficulty or faintness after contrast. Seek urgent help for severe breathing trouble, collapse or chest pain. For questions about a delayed report, contact the ordering clinician or imaging centre.

Ask: Is seated MRI appropriate for the body area being assessed? Will contrast be needed? Do my implants or metal exposure require a safety review? Would a conventional MRI or another scan provide more useful images?