Stringlike pulse quantification study by pulse wave in 3D pulse mapping.
BACKGROUND
A stringlike pulse is highly related to hypertension, and many classification approaches have been proposed in which the differentiation pulse wave (dPW) can effectively classify the stringlike pulse indicating hypertension. Unfortunately, the dPW method cannot distinguish the spring stringlike pulse from the stringlike pulse so labeled by physicians in clinics.


METHODS
By using a Bi-Sensing Pulse Diagnosis Instrument (BSPDI), this study proposed a novel Plain Pulse Wave (PPW) to classify a stringlike pulse based on an array of pulse signals, mimicking a Traditional Chinese Medicine physician's finger-reading skill.


RESULTS
In comparison to PPWs at different pulse taking positions, phase delay Δθand correlation coefficient r can be elucidated as the quantification parameters of stringlike pulse. As a result, the recognition rates of a hypertensive stringlike pulse, spring stringlike pulse, and non-stringlike pulse are 100%, 100%, 77% for PPW and 70%, 0%, 59% for dPW, respectively.


CONCLUSIONS
Integrating dPW and PPW can unify the classification of stringlike pulse including hypertensive stringlike pulse and spring stringlike pulse. Hence, the proposed novel method, PPW, enhances quantification of stringlike pulse.
Department of Electrical Engineering, Instrumentation Chip Group, National Cheng Kung University, Tainan, Taiwan.
Ching-Hsing
CH
Luo
Yu-Feng
YF
Chung
Cheng-Chang
CC
Yeh
Xiao-Chen
XC
Si
Chien-Chen
CC
Chang
Chung-Shing
CS
Hu
Yu-Wen
YW
Chu
D000293:Adolescent; D000328:Adult; D003937:Diagnosis, Differential; D006801:Humans; D006973:Hypertension / Q000175:diagnosis* / Q000503:physiopathology; D008516:Medicine, Chinese Traditional; D008875:Middle Aged; D011673:Pulsatile Flow; D011674:Pulse; D055815:Young Adult