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Mirror Image Video Artifact: An Under-Reported Digital Video-EEG Artifact
Michael A Babcock1, William H Levis2, Amar B Bhatt2
1a Department of Pediatrics, Division of Pediatric Neurology , Greenville Health System and University of South Carolina School of Medicine-Greenville , Greenville , South Carolina.
A unique digital video artifact, a mirror image, occurred during video-electroencephalography (EEG) recording. Recognizing this artifact ensured accurate interpretation of seizure activity and patient management.
Area of Science:
- Neuroscience
- Medical Technology
Background:
- Synchronous video recording aids electroencephalography (EEG) in seizure detection and artifact rejection.
- Video recordings are susceptible to digital artifacts, independent of EEG signals.
Observation:
- A case of focal motor status epilepticus presented with a vertical axis mirror image video artifact during video-EEG.
- Apparent ipsilateral correlation between EEG abnormalities and arm movements suggested incorrect anatomical localization.
Findings:
- The video recording was inverted along the vertical axis, creating a mirror image artifact.
- Correct interpretation revealed contralateral correlation between right hemispheric EEG abnormalities and left arm movements.
Implications:
- Recognition of video artifacts is crucial for accurate EEG interpretation and patient management.
- Effective communication among EEG physicians, technologists, and clinical teams is vital.
- Bedside evaluation and technologist expertise remain essential despite advanced video-EEG technology.
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