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Einthoven's triangle : ウィキペディア英語版
Einthoven's triangle

Einthoven's triangle is an imaginary formation of three limb leads in a triangle used in electrocardiography, formed by the two shoulders and the pubis. The shape forms an inverted equilateral triangle with the heart at the center that produces zero potential when the voltages are summed. It is named after Willem Einthoven, who theorized its existence.
==Lead placements==

* Lead I – This axis goes from shoulder to shoulder, with the negative electrode placed on the right shoulder and the positive electrode placed on the left shoulder.
:
I = LA - RA

* Lead II – This axis goes from the right arm to the left leg, with the negative electrode on the shoulder and the positive one on the leg.
:
II = LL - RA

* Lead III- This axis goes from the left shoulder (negative electrode) to the left leg (positive electrode).
:
III = LL - LA


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Einthoven's triangle」の詳細全文を読む



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