Multiple-Site Hemodynamic Analysis of Doppler Ultrasound with an Adaptive Color Relation Classifier for Arteriovenous Access Occlusion Evaluation
This study proposes multiple-site hemodynamic analysis of Doppler ultrasound with an adaptive color relation classifier for arteriovenous access occlusion evaluation in routine examinations. The hemodynamic analysis is used to express the properties of blood flow through a vital access or a tube, us...
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doaj-90cda6e49dc74922a46771d86f4d8e632020-11-25T01:35:55ZengHindawi LimitedThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/203148203148Multiple-Site Hemodynamic Analysis of Doppler Ultrasound with an Adaptive Color Relation Classifier for Arteriovenous Access Occlusion EvaluationJian-Xing Wu0Yi-Chun Du1Ming-Jui Wu2Chien-Ming Li3Chia-Hung Lin4Tainsong Chen5Department of Biomedical Engineering, National Cheng Kung University, Tainan City 70101, TaiwanDepartment of Electrical Engineering, Southern Taiwan University of Science and Technology, Tainan City 71005, TaiwanDepartment of Internal Medicine, Kaohsiung Veterans General Hospital, Tainan Branch, Tainan City 71051, TaiwanDivision of Infectious Diseases, Department of Medicine of Chi Mei Medical Center, Tainan City 71004, TaiwanDepartment of Electrical Engineering, Kao Yuan University, Kaohsiung City 82151, TaiwanDepartment of Biomedical Engineering, National Cheng Kung University, Tainan City 70101, TaiwanThis study proposes multiple-site hemodynamic analysis of Doppler ultrasound with an adaptive color relation classifier for arteriovenous access occlusion evaluation in routine examinations. The hemodynamic analysis is used to express the properties of blood flow through a vital access or a tube, using dimensionless numbers. An acoustic measurement is carried out to detect the peak-systolic and peak-diastolic velocities of blood flow from the arterial anastomosis sites (A) to the venous anastomosis sites (V). The ratio of the supracritical Reynolds (Resupra) number and the resistive (Res) index quantitates the degrees of stenosis (DOS) at multiple measurement sites. Then, an adaptive color relation classifier is designed as a nonlinear estimate model to survey the occlusion level in monthly examinations. For 30 long-term follow-up patients, the experimental results show the proposed screening model efficiently evaluates access occlusion.http://dx.doi.org/10.1155/2014/203148 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jian-Xing Wu Yi-Chun Du Ming-Jui Wu Chien-Ming Li Chia-Hung Lin Tainsong Chen |
spellingShingle |
Jian-Xing Wu Yi-Chun Du Ming-Jui Wu Chien-Ming Li Chia-Hung Lin Tainsong Chen Multiple-Site Hemodynamic Analysis of Doppler Ultrasound with an Adaptive Color Relation Classifier for Arteriovenous Access Occlusion Evaluation The Scientific World Journal |
author_facet |
Jian-Xing Wu Yi-Chun Du Ming-Jui Wu Chien-Ming Li Chia-Hung Lin Tainsong Chen |
author_sort |
Jian-Xing Wu |
title |
Multiple-Site Hemodynamic Analysis of Doppler Ultrasound with an Adaptive Color Relation Classifier for Arteriovenous Access Occlusion Evaluation |
title_short |
Multiple-Site Hemodynamic Analysis of Doppler Ultrasound with an Adaptive Color Relation Classifier for Arteriovenous Access Occlusion Evaluation |
title_full |
Multiple-Site Hemodynamic Analysis of Doppler Ultrasound with an Adaptive Color Relation Classifier for Arteriovenous Access Occlusion Evaluation |
title_fullStr |
Multiple-Site Hemodynamic Analysis of Doppler Ultrasound with an Adaptive Color Relation Classifier for Arteriovenous Access Occlusion Evaluation |
title_full_unstemmed |
Multiple-Site Hemodynamic Analysis of Doppler Ultrasound with an Adaptive Color Relation Classifier for Arteriovenous Access Occlusion Evaluation |
title_sort |
multiple-site hemodynamic analysis of doppler ultrasound with an adaptive color relation classifier for arteriovenous access occlusion evaluation |
publisher |
Hindawi Limited |
series |
The Scientific World Journal |
issn |
2356-6140 1537-744X |
publishDate |
2014-01-01 |
description |
This study proposes multiple-site hemodynamic analysis of Doppler ultrasound with an adaptive color relation classifier for arteriovenous access occlusion evaluation in routine examinations. The hemodynamic analysis is used to express the properties of blood flow through a vital access or a tube, using dimensionless numbers. An acoustic measurement is carried out to detect the peak-systolic and peak-diastolic velocities of blood flow from the arterial anastomosis sites (A) to the venous anastomosis sites (V). The ratio of the supracritical Reynolds (Resupra) number and the resistive (Res) index quantitates the degrees of stenosis (DOS) at multiple measurement sites. Then, an adaptive color relation classifier is designed as a nonlinear estimate model to survey the occlusion level in monthly examinations. For 30 long-term follow-up patients, the experimental results show the proposed screening model efficiently evaluates access occlusion. |
url |
http://dx.doi.org/10.1155/2014/203148 |
work_keys_str_mv |
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