Journal of Okayama Medical Association
Published by Okayama Medical Association

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Full-text articles are available 3 years after publication.

Frank誘導法の胸部電極の位置に関する研究 第1編 人体胴体模型による検討

宮阪 実 岡山大学医学部第一内科教室
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抄録
The effect of horizontal displacement of chest electrodes C, A and I for the Frank lead system on transfer impedance was studied in a human torso model. The results obtained were as follows: 1) With electrode C displaced 2 cm to the right of its original position, the magnitude of transfer impedance of lead Z increased by 6.3% and the azimuthal angle of transfer impedance of lead X deviated by 3.7%. A displacement of 2 cm to the left caused a decrease in the magnitude of the transfer impedance of lead Z of 5.6%. On the other hand, backward deviation changed the azimuthal angle of the transfer impedance of lead Z by 2.8°. 2) By moving electrodes A and I forward simultaneously by 2 cm the magnitude of the transfer impedance of lead X increased by approximately 5% while 2 cm backward-displacement of the electrodes decreased the magnitude of the transfer impedance of lead X by 5.7%. 3) With the center of the heart approaching the precordial wall, changes observed in 1) and 2) became conspicuous when the electrodes were on the left but obscure when the electrodes were located backwards or to the right.
キーワード
Frank誘導法
胸部電極
人体胴体模型
誘導ベクトル
X, Y, Z誘導
ISSN
0030-1558
NCID
AN00032489