Lege Artis Medicinae

[EEG mapping in focal cerebral disorders]

NIKL János1, KUKOR Gyula1

JANUARY 31, 1994

Lege Artis Medicinae - 1994;4(01)

[EEG mapping is a new method which serves for processing the data of the quantitative analysis of the brain electrical activity. In its final form it is a neuroimaging technique. The present study was designed to examine the localization reliability and clinical utilization of the mapping. 103 patients with focal cerebral disorders were investigated: 70 patients with cerebrovascular diseases, 33 patients with tumour, epilepsy, migraine, meningoencephalitis, subdural haematoma, subarachnoid cyst. The EEG mapping, the routine EEG and the CT were performed and their findings were compared. In comparison with the traditional EEG, the mapping has the advantage that it can detect the alpha asymmetry. It shows the focal, functional damages more correctly than the EEG does. The mapping provides information about the ischemic lesions before the CT can visualize the tissue hypodensity. In comparison with the CT, the mapping has a good localization reliability although there are some sources of error in the method. It can detect minimal cerebral damages. It is applicable for follow-up studies on transient ischemic attacks. ]

AFFILIATIONS

  1. Zala Megyei Kórház Neurológiai Osztály Zalaegerszeg

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