THE VECTORCARDIOGRAM is a record of the time course of the mean instantaneous electric vectors produced by auricular and ventricular depolarization and repolarization. The principle of vectorcardiography was advanced by Mann in 1920, when he described the method for manually constructing the monocardiogram from the standard leads of the electrocardiogram.1 He later constructed a special three-coil galvanometer for automatically recording the trace directly from man.2 Wilson and Johnston3 in 1938, Schellong and associates4 in 1937, and Hollmann and Hollmann5 in 1938 independently applied the cathode-ray oscilloscope to record the vectorcardiogram. Because the oscilloscope, with its suitable amplifiers, is one of the best recorders available today for tracing accurately the electrical events from the heart, it has supplanted other recorders6 and the tedious process of drawing the vectorcardiogram manually from the electrocardiogram.
Except for the excellent advancements in theory and recording by Wilson and Johnston, Schellong, and Hollmann and Hollmann and
VECTORCARDIOGRAPHY. AMA Arch Intern Med. 1952;90(2):137–140. doi:10.1001/archinte.1952.00240080003001
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