• Acoustic noise due to rapid gradient switching. Hearing protection will be provided
  • Potential quench of cryogens and asphyxiation - a hazard only if the vent fails
  • Operating at a field strength of 3 Tesla, our scanner falls into the second category ‘upper level' (NRPB) which corresponds to ‘first level controlled operating mode' (IEC). The MHRA advises that visual supervision of a conscious patient by an MR Operator will be sufficient to ensure the safety of the subject.
  • Potential for RF burns - correct input of subject weight will ensure Specific Absorption Rate (SAR) limits are not exceeded.
  • The scanner has a laser alignment beams which is a Class 2 laser product. The instructions "Do not stare into the beam" will be given
  • Claustrophobia – subjects will have an ‘attention button' to indicate that they wish the scan to be stopped and to be withdrawn from scanner.
  • Peripheral nerve stimulation (experienced as pain or tingling in nerve distribution when entering magnetic field or during scan) - this would result in withdrawal from scanner room and MRI would not be performed or would be stopped. The symptoms go away as soon as removed from magnetic field.