A SEEG electrode contains a number of contact points and as many number of insulated wires each following a contact. Here, we studied the coupling among the contact wires of SEEG electrode inserted into phantom, by using temperature measurements at different contact points, and varying the lengths of contact wires. From the experiment, we saw that, changing the length of one contact wire will result in change in temperature rise to other contacts also, even if wire lengths corresponding to those contacts are unchanged. This shows significant coupling among the wires at the RF frequency of 3T MRI system.
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