Premium
Advantage of Monitoring Skin Vibration as an Index of Arteriovenous Fistular Blood Flow
Author(s) -
Aoki Takeshi,
Shinzato Toru,
Itani Hisahiro,
Kato Tatsunori,
Miwa Masatniki,
Nakai Shigeru,
Maeda Kenji
Publication year - 1996
Publication title -
artificial organs
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.684
H-Index - 76
eISSN - 1525-1594
pISSN - 0160-564X
DOI - 10.1111/j.1525-1594.1996.tb04440.x
Subject(s) - blood flow , vibration , spectral density , materials science , noise (video) , acoustics , biomedical engineering , medicine , cardiology , physics , engineering , computer science , telecommunications , artificial intelligence , image (mathematics)
Monitoring of the skin vibration is disturbed little by environmental noise. Therefore, the skin vibration is more relevant than bruit on the skin by means of monitoring the fistular blood flow. Frequency analysis of the skin vibration generated by an internal arteriovenous fistula indicated two peaks of power spectral density (PSD), one in the frequency range of 4–10 Hz and the other from 100–300 Hz. The analysis of the skin vibration generated by an external fistula, however, showed only one peak in the range of 4–10 Hz and a moderate flat PSD level in the range of 100–300 Hz. The PSD level in the range of 100–300 Hz decreased dramatically or disappeared when the fistular blood flow diminished or ceased. Therefore, the optimal frequency for monitoring skin vibration may be the range of 100–300 Hz.