EARLY DIFFERENTIAL DIAGNOSTIC TECHNIQUE FOR BIPOLAR AFFECTIVE AND RECURRENT DEPRESSIVE DISORDERS Russian patent published in 2014 - IPC A61B5/476 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to psychiatrics. A clinical examination is combined with recording an electroencephalogram (EEG); its spectral and coherent analyses are carried out. The following values are determined: T6-AA-lead power spectrum within the range of 3.5-5 Hz, F7-AA-lead power spectrum within the range of 2-3 Hz, T5-AA -lead power spectrum within the range of 23-24.5 Hz, hemispheric power asymmetry between F8-AA and F7-AA-leads within the range of 24.5-26 Hz, P4-C4-lead coherence within the range of 8-13 Hz, T4-F8 within the range of 23-24.5 Hz, T3-F7-lead power spectrum within the range of 26-27.5 Hz, T5-O1 within the range of 17-18.5 Hz, T3-F8 within the range of 20-21.5 Hz. Logarithms of the derived values are calculated. An integral diagnostic value is determined by mathematical formula taking into account the calculated logarithm and coefficient-corrective values. If the integral diagnostic value appears to be positive, a recurrent depressive disorder is diagnosed, while a bipolar affective disorder is shown by the negative integral diagnostic value.

EFFECT: method enables providing higher diagnostic reliability at the early stages of the disease that is ensured by the optimum selection of the values, and the mathematical calculation of the integral value.

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