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ID 16539
Eprint ID
16539
FullText URL
Thumnail 93_327.pdf 2.04 MB
Title Alternative
A study on the position of chest electrodes for the Frank lead system Part II. A clinical study
Author
Miyasaka, Minoru
Abstract
Vectorcardiograms with the Frank lead system were recorded in 122 healthy subjects (65 men, 57 women) and the effect of horizontal displacement of chest electrodes C, A and I on the vectorcardiogram was studied. The results obtained were as follows: 1) With electrode C displaced 2 cm to the right of the original position, Rz, Sz, and Tz increased, the azimuthal angle of QRSmax deviated backward and the QRS-T angle increased. Almost contrary changes were observed with displacement 2 cm to the left. 2) Rx, Tx, QRSmax and Tmax increased with simultaneous forward dislocation of electrodes A and I, but decreased with backward displacement of the electrodes. A greater influence on the direction of vectors was caused by shifting the electrodes backward. However, the elevation of QRSmax, the azimuthal angle of Tmax and spatial QRS-T angle changed slightly. 3) Changes greater than 1.0 mV and 10 % in one of the parameters (Rx, Rz, Sx, QRSmax, Tx, Tz, Tmax) were observed in 35-45 % of the subjects with a 2 cm horizontal displacement of electrode C, while an identical displacement of electrodes A and/or I caused the changes in more than 80 % of the subjects. 4) Therefore, in clinical use, it is acceptable to vary the position of electrode C horizontally within 1 cm from the original position in man and within 2 cm in women.
Keywords
Frank誘導法
胸部電極
ベクトル心電図
QRS環
T環
Published Date
1981-04-30
Publication Title
岡山医学会雑誌
Publication Title Alternative
Journal of Okayama Medical Association
Volume
volume93
Issue
issue3-4
Publisher
岡山医学会
Publisher Alternative
Okayama Medical Association
Start Page
327
End Page
341
ISSN
0030-1558
NCID
AN00032489
Content Type
Journal Article
Official Url
https://www.jstage.jst.go.jp/article/joma1947/93/3-4/93_3-4_327/_article/-char/ja/
Related Url
http://www.okayama-u.ac.jp/user/oma/index.html
language
日本語
Copyright Holders
岡山医学会
File Version
publisher
Refereed
True
Eprints Journal Name
joma