Structural association between heterotopia and cortical lesions visualised with 7 T MRI in patients with focal epilepsy

Drug resistant epilepsy comprises 30-40% of people suffering from focal epilepsy. High-quality imaging is crucial in the evaluation of drug resistant epilepsy patients, since as many as 50% of these patients may be potential candidates for surgical resection [1, 2]. Magnetic resonance imaging (MRI) preferably using a 3 T system is included in the pre-surgical work up for lesion detection [3]. The most important predictor for good surgical outcome is complete removal of an MRI detectable epileptogenic brain lesion [4, 5].

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