American Clinical Neurophysiology Society Guideline 4: Recording Clinical EEG on Digital Media

Halford, Jonathan J.; Sabau, Dragos; Drislane, Frank W.; Tsuchida, Tammy N.; Sinha, Saurabh

doi:10.1097/wnp.0000000000000318

Cited by 17 publications

(1 citation statement)

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“…This is about three times lower signal power than found at greater electrode distances and results in signals that are close to the noise floor of standard EEG equipment. In standard clinical care, the American Clinical Neurophysiology Society states that EEG recording devices should add less than 1 µV peak-to-peak noise at any frequency in the band [0.5-100] Hz [37]. This is in line with amplifier technology commonly found in EEG equipment, such as the Texas Instrument ADS1299 which claims an input referred-noise of 1 µV peak-to-peak [38].…”

Section: Discussionmentioning

confidence: 99%

Sensor selection and miniaturization limits for detection of interictal epileptiform discharges with wearable EEG

et al. 2023

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Objective: The goal of this paper is to investigate the limits of EEG sensor miniaturization in a set-up consisting of multiple galvanically isolated EEG units to record interictal epileptiform discharges, referred to as `spikes', in people with epilepsy. Approach: A dataset of high-density EEG recordings (257 channels) was used to emulate local EEG sensor units with short inter-electrode distances. A computationally efficient sensor selection and interictal spike detection algorithm was developed and used to assess the influence of the inter-electrode distance and the number of such EEG units on spike detection performance. Signal-to-noise ratio, correlation with a clinical-grade IED detector and Cohen's kappa coefficient of agreement were used to quantify performance. Bayesian statistics were used to confirm the statistical significance of the observed results. Main Results: We found that EEG recording equipment should be specifically designed to measure the small signal power at short inter-electrode distance by providing an input referred noise $<300$ nV. We also found that an inter-electrode distance of minimum 5 cm between electrodes in a setup with a minimum of two EEG units is required to obtain near equivalent performance in interictal spike detection to standard EEG. Significance: These findings provide design guidelines for miniaturizing EEG systems for long term ambulatory monitoring of interictal spikes in epilepsy patients

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Section: Discussionmentioning

confidence: 99%