Interictal Versus Ictal High Frequency Oscillations in Neocortical Epilepsy (PD3.007)

Neurology ◽  
2012 ◽  
Vol 78 (Meeting Abstracts 1) ◽  
pp. PD3.007-PD3.007
Author(s):  
S. Miocinovic ◽  
P. Modur
Keyword(s):  
High Frequency ◽  
High Frequency Oscillations ◽  
Neocortical Epilepsy

Dynamic Changes of Ictal High-Frequency Oscillations in Neocortical Epilepsy: Using Multiple Band Frequency Analysis

Epilepsia ◽  
2007 ◽  
Vol 48 (2) ◽  
pp. 286-296 ◽  
Author(s):  
Ayako Ochi ◽  
Hiroshi Otsubo ◽  
Elizabeth J. Donner ◽  
Irene Elliott ◽  
Ryoichi Iwata ◽  
...  
Keyword(s):  
Frequency Analysis ◽  
High Frequency ◽  
Dynamic Changes ◽  
Band Frequency ◽  
High Frequency Oscillations ◽  
Multiple Band ◽  
Neocortical Epilepsy

scholarly journals Resection of individually identified high-rate high-frequency oscillations region is associated with favorable outcome in neocortical epilepsy

Epilepsia ◽  
2014 ◽  
Vol 55 (11) ◽  
pp. 1872-1883 ◽  
Author(s):  
Jounhong Ryan Cho ◽  
Dae Lim Koo ◽  
Eun Yeon Joo ◽  
Dae Won Seo ◽  
Seung-Chyul Hong ◽  
...  
Keyword(s):  
High Frequency ◽  
Favorable Outcome ◽  
High Rate ◽  
High Frequency Oscillations ◽  
Neocortical Epilepsy

scholarly journals High-frequency oscillations and seizure generation in neocortical epilepsy

Brain ◽  
2004 ◽  
Vol 127 (7) ◽  
pp. 1496-1506 ◽  
Author(s):  
G. A. Worrell ◽  
L. Parish ◽  
S. D. Cranstoun ◽  
R. Jonas ◽  
G. Baltuch ◽  
...  
Keyword(s):  
High Frequency ◽  
High Frequency Oscillations ◽  
Neocortical Epilepsy

scholarly journals High-frequency Oscillations and the Seizure Onset Zones in Neocortical Epilepsy

2015 ◽  
Vol 128 (13) ◽  
pp. 1724-1727 ◽  
Author(s):  
Yan-Ping Sun ◽  
Yu-Ping Wang ◽  
Zhi-Hong Wang ◽  
Feng-Yu Wu ◽  
Li-Ou Tang ◽  
...  
Keyword(s):  
High Frequency ◽  
Seizure Onset ◽  
High Frequency Oscillations ◽  
Neocortical Epilepsy ◽  
Seizure Onset Zones

scholarly journals Unsupervised Classification of High-Frequency Oscillations in Human Neocortical Epilepsy and Control Patients

2010 ◽  
Vol 104 (5) ◽  
pp. 2900-2912 ◽  
Author(s):  
Justin A. Blanco ◽  
Matt Stead ◽  
Abba Krieger ◽  
Jonathan Viventi ◽  
W. Richard Marsh ◽  
...  
Keyword(s):  
High Frequency ◽  
Unsupervised Classification ◽  
Data Set ◽  
High Frequency Oscillations ◽  
Unsupervised Approach ◽  
Brain States ◽  
Neocortical Epilepsy ◽  
Number Of Classes ◽  
And Control

High-frequency oscillations (HFOs) have been observed in animal and human intracranial recordings during both normal and aberrant brain states. It has been proposed that the relationship between subclasses of these oscillations can be used to identify epileptic brain. Studies of HFOs in epilepsy have been hampered by selection bias arising primarily out of the need to reduce the volume of data so that clinicians can manually review it. In this study, we introduce an algorithm for detecting and classifying these signals automatically and demonstrate the tractability of analyzing a data set of unprecedented size, over 31,000 channel-hours of intracranial electroencephalographic (iEEG) recordings from micro- and macroelectrodes in humans. Using an unsupervised approach that does not presuppose a specific number of clusters in the data, we show direct evidence for the existence of distinct classes of transient oscillations within the 100- to 500-Hz frequency range in a population of nine neocortical epilepsy patients and two controls. The number of classes we find, four (three plus one putative artifact class), is consistent with prior studies that identify “ripple” and “fast ripple” oscillations using human-intensive methods and, additionally, identifies a less examined class of mixed-frequency events.

Topographic Movie of Ictal High-Frequency Oscillations on the Brain Surface Using Subdural EEG in Neocortical Epilepsy

Epilepsia ◽  
2006 ◽  
Vol 47 (11) ◽  
pp. 1953-1957 ◽  
Author(s):  
Tomoyuki Akiyama ◽  
Hiroshi Otsubo ◽  
Ayako Ochi ◽  
Elaine Z. Galicia ◽  
Shelly K. Weiss ◽  
...  
Keyword(s):  
High Frequency ◽  
Brain Surface ◽  
High Frequency Oscillations ◽  
Neocortical Epilepsy ◽  
The Brain

SPATIO-TEMPORAL CHANGES OF ICTAL HIGH FREQUENCY OSCILLATIONS IN PEDIATRIC NEOCORTICAL EPILEPSY

2006 ◽  
Vol 37 (S 1) ◽  
Author(s):  
A Ochi ◽  
H Otsubo ◽  
I Elliott ◽  
E Donner ◽  
J Rutka ◽  
...  
Keyword(s):  
High Frequency ◽  
Temporal Changes ◽  
High Frequency Oscillations ◽  
Neocortical Epilepsy ◽  
Spatio Temporal
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