Development and feasibility study of a two-dimensional ultrasonic-measurement-integrated blood flow analysis system for hemodynamics in carotid arteries.
Prevention and early detection of atherosclerosis are critical for protection against subsequent circulatory disease. In this study, an automated two-dimensional ultrasonic-measurement-integrated (2D-UMI) blood flow analysis system for clinical diagnosis was developed, and the feasibility of the sys...
| Publicado en: | Medical & Biological Engineering & Computing Vol. 52; no. 11; pp. 933 - 944 |
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| Autores principales: | , , , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Springer Nature
Nov2014
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=103851203&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 103851203 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01400118 PO0 jtl: Medical & Biological Engineering & Computing issn: 01400118 maglogo: N pubinfo: dt: Nov2014 vid: 52 iid: 11 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 103851203 NLM25192923 2012770846 10.1007/s11517-014-1193-3 NLM25192923 103851203 ppf: 933 ppct: 11 formats: fmt: @attributes: type: P tig: atl: Development and feasibility study of a two-dimensional ultrasonic-measurement-integrated blood flow analysis system for hemodynamics in carotid arteries. aug: au: Kato, Takaumi Funamoto, Kenichi Hayase, Toshiyuki Sone, Shusaku Kadowaki, Hiroko Shimazaki, Tadashi Jibiki, Takao Miyama, Koji Liu, Lei affil: Graduate School of Biomedical Engineering, Tohoku University, Sendai, 980-8579, Japan. sug: subj: Blood Flow Velocity Physiology Carotid Arteries Physiology Ultrasonography, Doppler, Color Methods Aged Pilot Studies Feedback Female Human Male Middle Age Aged: 65+ years Middle Aged: 45-64 years Female Male ab: Prevention and early detection of atherosclerosis are critical for protection against subsequent circulatory disease. In this study, an automated two-dimensional ultrasonic-measurement-integrated (2D-UMI) blood flow analysis system for clinical diagnosis was developed, and the feasibility of the system for hemodynamic analysis in a carotid artery was revealed. The system automatically generated a 2D computational domain based on ultrasound color Doppler imaging and performed a UMI simulation of blood flow field to visualize hemodynamics in the domain. In the UMI simulation, compensation of errors was applied by adding feedback signals proportional to the differences between Doppler velocities by measurement and computation while automatically estimating the cross-sectional average inflow velocity. The necessity of adjustment of the feedback gain was examined by analyzing blood flow in five carotid arteries: three healthy, one sclerosed, and one stenosed. The same feedback gain was generally applicable for the 2D-UMI simulation in all carotid arteries, depending on target variables. Thus, the present system was shown to be versatile in the sense that the parameter is patient independent. Moreover, the possibility of a new diagnostic method based on the hemodynamic information obtained by the 2D-UMI simulation, such as a waveform of the cross-sectional average inflow velocity and wall shear stress distributions, was suggested. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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