Tests - MEG

This detects tiny magnetic fields that are part of seizure activity, and is thought to localise the seizure source very accurately. It is particularly helpful if the seizure source appears to be located in one of the folds of the brain’s surface (commonly the sylvian fissure in LKS) as it gives a three dimensional localisation which is superior to EEG information. However, the equipment is expensive, bulky and not currently available for children in the UK although there are plans to address this. If this test were needed, your child would currently need to travel to Helsinki.