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Claustrophobia – subjects will have an ‘attention button' to indicate that they wish the scan to be stopped and to be withdrawn from scanner.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.
