[Method of enhancing the diagnostic information value of the atrial vectorcardiogram].

An automated differentiation of the P loop from other VCG loops, its 20-fold magnification, visualization, and computation of its major spatial and projection parameters have been made possible, giving precise information on its configuration, duration, the direction of recording, as well as relative positions and directions of its instantaneous vectors. Digital computerization of the traces has produced different vector and scale characteristics of the spatial Pxyz loop.