The Validity of the Equilateral Tetrahedron as a Spatial Reference System | Zendy

J.A. Abildskov | Zendy; G.E. Burch | Zendy; J. A. CRONVICH | Zendy

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The Validity of the Equilateral Tetrahedron as a Spatial Reference System

Author(s) -

J.A. Abildskov,

G.E. Burch,

J. A. CRONVICH

Publication year - 1950

Publication title -

circulation

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 7.795

H-Index - 607

eISSN - 1524-4539

pISSN - 0009-7322

DOI - 10.1161/01.cir.2.1.122

Subject(s) - equilateral triangle , tetrahedron , position (finance) , medicine , dipole , geometry , physics , mathematics , finance , quantum mechanics , economics

The error involved in the use of the equilateral tetrahedron reference system for electrocardiographic or vectorcardiographic studies has been investigated by means of an electrical dipole placed in the esophagus. Vectors plotted from the potential differences between electrodes defining the reference system were found to correspond fairly closely to the actual position of the dipole, indicating that the error is small.

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