Using Limiting Distribution of Transition Probability to Assess Coexisting Inflow and Outflow Stenosis in Experimental Stenotic Arteriovenous Grafts
| Autor: | Chia-Hung Lin, Wei Ling Chen, Yi-Chen Mai, Chung Dann Kan, Hung-Shang Liu, Chien-Ming Li |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
medicine.medical_specialty Flow (psychology) 030232 urology & nephrology Asymptotic distribution Inflow medicine.disease 010603 evolutionary biology 01 natural sciences 03 medical and health sciences Stenosis 0302 clinical medicine Joint probability distribution Internal medicine medicine Cardiology Transition probability matrix Outflow Arteriovenous grafts Biomedical engineering Mathematics |
| Zdroj: | Proceedings of the 4th IIAE International Conference on Intelligent Systems and Image Processing 2016. |
| DOI: | 10.12792/icisip2016.074 |
| Popis: | This study proposes a screening model to assess coexisting inflow and outflow stenosis in an experimental arteriovenous graft (AVG). Early clots and thrombosis lead to stenosis progression and increase variations in inflow and outflow pressures, flow velocities, and flow resistances. A substitution rate matrix (SRM) is used to replace the pressure variations and derive a transition probability matrix (TPM). The limitation values of transition probabilities can be used to identify the normal conditions and flow instabilities using the Euclidean distance estimation method. The joint probability could then be specified as a critical threshold to identify the stenosis levels in the assessment of coexisting stenosis. |
| Databáze: | OpenAIRE |
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