title: Studies on the normal polarcardiograms using the inferosuperior axis as the polar axis.
abstract: Polarcardiography made possible not only to let us know the polar coordinates of the cardiac vectors at any instant very easily, but also to express the time-related curve of the polar coordinates of the cardiac vectors, which vary as function of time, in easily understandable analogue pattern. Especially it was difficult to grasp the time-related curves of the polar coordinates of ST segment and T wave by means of the conventional electrocardiography and vector-cardiography. QRS waves, ST segments and T waves of the spatial magnitude ECG and I-S latitude ECG in normal subjects were classified into the several definite patterns.
mesh_terms: D000328:Adult; D000367:Age Factors; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013997:Time Factors; D014672:Vectorcardiography / Q000379:methods*