OBJECTIVE: We aim to automatically detect fast oscillations (40-200 Hz) related to epilepsy on scalp EEG recordings. METHODS: The detector first finds localized increments of the signal power in narrow frequency bands. A simple classification based on two features, a narrowband to wideband signal amplitude ratio and an absolute narrowband signal amplitude, then allows for an important reduction in the number of false positives. RESULTS: When compared to an expert, the performance in 15 focal epilepsy patients resulted in 3.6 false positives per minute at 95% sensitivity, with at least 40% of the detected events being true positives. In most of the patients the channels showing the highest number of events according to the expert and the automatic detector were the same. CONCLUSIONS: A high sensitivity is achieved with the proposed automatic detector, but results should be reviewed by an expert to remove false positives. SIGNIFICANCE: The time required to mark fast oscillations on scalp EEG recordings is drastically reduced with the use of the proposed detector. Thus, the automatic detector is a useful tool in studies aiming to create a better understanding of the fast oscillations visible on the scalp.
OBJECTIVE: We aim to automatically detect fast oscillations (40-200 Hz) related to epilepsy on scalp EEG recordings. METHODS: The detector first finds localized increments of the signal power in narrow frequency bands. A simple classification based on two features, a narrowband to wideband signal amplitude ratio and an absolute narrowband signal amplitude, then allows for an important reduction in the number of false positives. RESULTS: When compared to an expert, the performance in 15 focal epilepsypatients resulted in 3.6 false positives per minute at 95% sensitivity, with at least 40% of the detected events being true positives. In most of the patients the channels showing the highest number of events according to the expert and the automatic detector were the same. CONCLUSIONS: A high sensitivity is achieved with the proposed automatic detector, but results should be reviewed by an expert to remove false positives. SIGNIFICANCE: The time required to mark fast oscillations on scalp EEG recordings is drastically reduced with the use of the proposed detector. Thus, the automatic detector is a useful tool in studies aiming to create a better understanding of the fast oscillations visible on the scalp.
Authors: Daniel M Goldenholz; Masud Seyal; Lisa M Bateman; Jean Gotman; Luciana Andrade-Valenca; Rina Zelmann; Francois Dubeau Journal: Neurology Date: 2012-01-17 Impact factor: 9.910
Authors: Catherine J Chu; Arthur Chan; Dan Song; Kevin J Staley; Steven M Stufflebeam; Mark A Kramer Journal: J Neurosci Methods Date: 2016-12-14 Impact factor: 2.390
Authors: Mark A Kramer; Lauren M Ostrowski; Daniel Y Song; Emily L Thorn; Sally M Stoyell; McKenna Parnes; Dhinakaran Chinappen; Grace Xiao; Uri T Eden; Kevin J Staley; Steven M Stufflebeam; Catherine J Chu Journal: Brain Date: 2019-05-01 Impact factor: 13.501
Authors: Hisako Fujiwara; Hansel M Greiner; Ki Hyeong Lee; Katherine D Holland-Bouley; Joo Hee Seo; Todd Arthur; Francesco T Mangano; James L Leach; Douglas F Rose Journal: Epilepsia Date: 2012-08-20 Impact factor: 5.864
Authors: Aljoscha Thomschewski; Nathalie Gerner; Patrick B Langthaler; Eugen Trinka; Arne C Bathke; Jürgen Fell; Yvonne Höller Journal: Front Neurol Date: 2020-10-19 Impact factor: 4.003
Authors: Yvonne Höller; Raoul Kutil; Lukas Klaffenböck; Aljoscha Thomschewski; Peter M Höller; Arne C Bathke; Julia Jacobs; Alexandra C Taylor; Raffaele Nardone; Eugen Trinka Journal: Front Hum Neurosci Date: 2015-10-20 Impact factor: 3.169