Diagnostic added value of electrical source imaging in presurgical evaluation of patients with epilepsy: A prospective study
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Diagnostic added value of electrical source imaging in presurgical evaluation of patients with epilepsy : A prospective study. / Foged, Mette Thrane; Martens, Terje; Pinborg, Lars H.; Hamrouni, Nizar; Litman, Minna; Rubboli, Guido; Leffers, Anne-Mette; Ryvlin, Philippe; Jespersen, Bo; Paulson, Olaf B.; Fabricius, Martin; Beniczky, Sándor.
In: Clinical Neurophysiology, Vol. 131, No. 1, 2020, p. 324-329.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Diagnostic added value of electrical source imaging in presurgical evaluation of patients with epilepsy
T2 - A prospective study
AU - Foged, Mette Thrane
AU - Martens, Terje
AU - Pinborg, Lars H.
AU - Hamrouni, Nizar
AU - Litman, Minna
AU - Rubboli, Guido
AU - Leffers, Anne-Mette
AU - Ryvlin, Philippe
AU - Jespersen, Bo
AU - Paulson, Olaf B.
AU - Fabricius, Martin
AU - Beniczky, Sándor
PY - 2020
Y1 - 2020
N2 - Objective: To investigate the diagnostic added value of electrical source imaging (ESI) in presurgical evaluation of patients with drug resistant focal epilepsy. Methods: Eighty-two consecutive patients were included. We analyzed both low density (LD) and high density (HD) EEG recordings. LD ESI was done on interictal and ictal signals recorded during long-term video-EEG monitoring (LTM), with standard 25 electrodes and age-matched template head models. HD ESI was done on shorter recordings (90–120 min), with 256 electrodes, using individual head model. The multidisciplinary team made decisions first blinded to ESI (based on all other modalities) and then discussed the results of the ESI. We considered that ESI had diagnostic added value, when it provided non-redundant information that changed the patientś management plan. Results: ESI had diagnostic added value in 28 patients (34%). In most cases (85.7%), these changes were related to planning of the invasive recordings. In nine out of 13 patients, invasive recordings confirmed the localization. Out of eight patients in whom the ESI source was resected, six became seizure-free. Conclusions: ESI provides non-redundant information in one third of the patients undergoing presurgical evaluation. Significance: This study provides evidence for the diagnostic added value of ESI in presurgical evaluation.
AB - Objective: To investigate the diagnostic added value of electrical source imaging (ESI) in presurgical evaluation of patients with drug resistant focal epilepsy. Methods: Eighty-two consecutive patients were included. We analyzed both low density (LD) and high density (HD) EEG recordings. LD ESI was done on interictal and ictal signals recorded during long-term video-EEG monitoring (LTM), with standard 25 electrodes and age-matched template head models. HD ESI was done on shorter recordings (90–120 min), with 256 electrodes, using individual head model. The multidisciplinary team made decisions first blinded to ESI (based on all other modalities) and then discussed the results of the ESI. We considered that ESI had diagnostic added value, when it provided non-redundant information that changed the patientś management plan. Results: ESI had diagnostic added value in 28 patients (34%). In most cases (85.7%), these changes were related to planning of the invasive recordings. In nine out of 13 patients, invasive recordings confirmed the localization. Out of eight patients in whom the ESI source was resected, six became seizure-free. Conclusions: ESI provides non-redundant information in one third of the patients undergoing presurgical evaluation. Significance: This study provides evidence for the diagnostic added value of ESI in presurgical evaluation.
KW - Diagnostic added value
KW - Electrical source imaging
KW - Epilepsy surgery
KW - High density EEG
KW - Long term video EEG monitoring
U2 - 10.1016/j.clinph.2019.07.031
DO - 10.1016/j.clinph.2019.07.031
M3 - Journal article
C2 - 31466846
AN - SCOPUS:85071116921
VL - 131
SP - 324
EP - 329
JO - Clinical Neurophysiology
JF - Clinical Neurophysiology
SN - 1388-2457
IS - 1
ER -
ID: 231897068