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The development of new technologies for electrocardiographic (ECG) monitoring enables the optimization of ECG recording strategy, in terms of a number and a position of body electrodes. Emerging wireless technology, together with requirements for improved wearing comfort, dictates a special design of a wireless bipolar ECG lead, which is composed of two closely placed electrodes. The measurements from a set of wireless electrodes, can serve for the reconstruction of the standard 12-lead ECG, which is directly applicable for the current medical knowledge. We present a method for synthesizing 12-lead ECG from only three bipolar leads. The result of the proposed method, based on multivariate linear regression, is a coefficients vector that transforms the data from three bipolar leads to a synthesized 12-leads ECG with minimum loss of diagnostic information. Two presented test cases show that a linear combination of only three bipolar leads, each obtained from two electrodes on a distance of 5 cm, suffices for a reliable synthesis of a standard 12-lead ECG. Wireless ECG leads can constitute a body sensor network that eliminates the need for additional wires and therefore improves the applicability of ECG device technology.

MULTIVARIATE LINEAR REGRESSION BASED SYNTHESIS OF 12-LEAD ECG FROM THREE BIPOLAR LEADS