The Analysis and Diagnosis of Unstable Behavior of the Blood Vessel Wall with an Aneurysm Based on Noise Science

Previously, one of the authors developed a noninvasive measurement method of acceleration and deceleration during the expansion process of the blood vessel wall under pulsatile pressure flow by measuring the strain rate of the blood vessel wall using a supersonic Doppler effect sensor aided by compu...

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Bibliographic Details
Published in:Journal of Atherosclerosis and Thrombosis 2006, Vol.13(4), pp.163-174
Main Authors: Yokobori,Jr., A.Toshimitsu, Owa, Michiaki, Ichiki, Masataka, Satoh, Tomoki, Ohtomo, Yuji, Satoh, Yusuke, Ohgoshi, Seiichi, Kinoshita, Yoshihiko, Karino, Shinichi
Format: Article
Language:English
Subjects:
Aneurysm
Aneurysm - diagnosis
Aneurysm - physiopathology
Biophysics - methods
Blood Flow Velocity
Blood Vessels - pathology
Chaos theory
Disease Progression
Doppler effect sensor
Humans
Models, Statistical
Models, Theoretical
Noise
Noise science
Noninvasive diagnostic method
Nonlinear Dynamics
Pulsatile Flow
Ultrasonography, Doppler - methods
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Summary:Previously, one of the authors developed a noninvasive measurement method of acceleration and deceleration during the expansion process of the blood vessel wall under pulsatile pressure flow by measuring the strain rate of the blood vessel wall using a supersonic Doppler effect sensor aided by computer analysis (DPC method). In this paper, on the basis of the analysis of chaos theory, that is, the complexity of science, the unstable behavior of the blood vessel wall with an aneurysm was investigated by identifying the characteristic DPC wave forms induced by the onset and progression of aneurysm. These results showed that unstable dynamic behavior of the blood vessel wall occurs due to the progression of the aneurysm. Furthermore, using the theoretical analysis of chaos, this unstable behavior of the blood vessel wall was quantified and the fundamental principle of a noninvasive diagnostic method of the progressive degree of aneurysm was proposed.
ISSN:1340-3478
1880-3873
DOI:10.5551/jat.13.163