Jia-Rong Yeh and Tzu-Yu Lin and Jiann-Shing Shieh and Yun Chen
Applying Similarity Theory and Hilbert Huang Transform for Estimating the Differences of Pigs Blood Pressure Signals between Situations of Intestinal Artery Blocking and Unblocking
460 - 465
2007
1
9
International Journal of Mechanical and Mechatronics Engineering
https://publications.waset.org/pdf/11903
https://publications.waset.org/vol/9
World Academy of Science, Engineering and Technology
A mammals body can be seen as a blood vessel with
complex tunnels. When heart pumps blood periodically, blood runs
through blood vessels and rebounds from walls of blood vessels.
Blood pressure signals can be measured with complex but periodic
patterns. When an artery is clamped during a surgical operation, the
spectrum of blood pressure signals will be different from that of
normal situation. In this investigation, intestinal artery clamping
operations were conducted to a pig for simulating the situation of
intestinal blocking during a surgical operation. Similarity theory is a
convenient and easy tool to prove that patterns of blood pressure
signals of intestinal artery blocking and unblocking are surely
different. And, the algorithm of Hilbert Huang Transform can be
applied to extract the character parameters of blood pressure pattern.
In conclusion, the patterns of blood pressure signals of two different
situations, intestinal artery blocking and unblocking, can be
distinguished by these character parameters defined in this paper.
Open Science Index 9, 2007