hexaxial reference system

hexaxial reference system
a series of lines used in electrocardiography to describe the potentials of the heart in the frontal plane by diagramming vectors that represent the standard bipolar limb leads and the augmented unipolar limb leads. See illustration.

Hexaxial reference system and axes of deviation. The triaxial reference system comprises the vectors I, II, and III (standard dipolar limb leads) only.


Medical dictionary. 2011.

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