Benign EEG Patterns
Benign EEG Patterns Thoru Yamada Elizabeth Meng This chapter is devoted to several EEG patterns that are seemingly abnormal because the waveform resembles epileptiform activity, the discharge has an asymmetric…
Continuous EEG Monitoring for Critically III Patients (CCEEG)
Continuous EEG Monitoring for Critically III Patients (CCEEG) Thoru Yamada Elizabeth Meng Introduction The recent advancement in computer technology has allowed continuous EEG recording at the patient’s bedside. This has…
Focal EEG Abnormalities
Focal EEG Abnormalities Thoru Yamada Elizabeth Meng General Characteristics of Focal EEG Abnormalities Focal EEG abnormalities were first described in 1936 by Gray Walter in brain tumor patients.1 The abnormalities…
Diffuse EEG Abnormalities
Diffuse EEG Abnormalities Thoru Yamada Elizabeth Meng General Features of Diffuse EEG Abnormalities Any clinical condition that causes clouding of consciousness is usually accompanied by diffuse EEG abnormalities. The degree…
EEG and Epilepsy
EEG and Epilepsy Thoru Yamada Elizabeth Meng Paroxysmal Discharges and Seizure Diagnosis Since the introduction of CT (computerized axial tomography) in the early 1970s, neuroimaging diagnostic tests such as MRI…
Activation Procedures
Activation Procedures Thoru Yamada Elizabeth Meng Activation procedures include various sensory and pharmacological stimulations to alter the physiological state. They are usually aimed at eliciting or enhancing abnormal activity, especially…
The Assessment of Abnormal EEG
The Assessment of Abnormal EEG Thoru Yamada Elizabeth Meng General Assessment Electroencephalograph (EEG) changes sensitively along with the state of consciousness in both physiological and pathological states. The alpha rhythm…
Characteristics of Normal EEG
Characteristics of Normal EEG Thoru Yamada Elizabeth Meng Normal Awake EEG EEG shows considerable interindividual variability and also changes significantly depending on the level of consciousness. Further, there are progressive…
Principles of Visual Analysis of EEG
Principles of Visual Analysis of EEG Thoru Yamada Elizabeth Meng The most characteristic features that distinguish EEG from other neurodiagnostic studies are (i) the dynamic nature by which it expresses…
Neuroanatomical and Neurophysiologic Basis of EEG
Neuroanatomical and Neurophysiologic Basis of EEG Thoru Yamada Elizabeth Meng To understand the electroencephalogram (EEG) and its related field of clinical neurophysiology, it is important to know basic neuroanatomy and…
