Evidence map›Paper›PMID 25505747›Full record

ArticleJournal of biomedical physics & engineering2013

Modeling the Circle of Willis Using Electrical Analogy Method under both Normal and Pathological Circumstances.

Mohsen Abdi, Alireza Karimi, Mahdi Navidbakhsh, Mohammadali Rahmati, Kamran Hassani, Ali Razmkon

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Article in Journal of biomedical physics & engineering, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
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1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

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3 · Its place in the literature

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5 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Mohsen AbdiDepartment of Mechanical Engineering, Iran University of Science and Technology, Tehran 16844, Iran.
Alireza KarimiDepartment of Mechanical Engineering, Iran University of Science and Technology, Tehran 16844, Iran.
Mahdi NavidbakhshDepartment of Mechanical Engineering, Iran University of Science and Technology, Tehran 16844, Iran.
Mohammadali RahmatiDepartment of Biomedical Engineering, Amirkabir University of Technology, Tehran 14987, Iran.
Kamran HassaniDepartment of Biomechanics, Science and Research Branch, Islamic Azad University, Tehran 12569, Iran.
Ali RazmkonShiraz Neuroscience Research Center, Department of Neurosurgery, Shiraz University of Medical Sciences, Shiraz, Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectiveThe circle of Willis (COW) supports adequate blood supply to the brain. The cardiovascular system, in the current study, is modeled using an equivalent electronic system focusing on the COW.

methodsIn our previous study we used 42 compartments to model whole cardiovascular system. In the current study, nevertheless, we extended our model by using 63 compartments to model whole CS. Each cardiovascular artery is modeled using electrical elements, including resistor, capacitor, and inductor. The MATLAB Simulink software is used to obtain the left and right ventricles pressure as well as pressure distribution at efferent arteries of the circle of Willis. Firstly, the normal operation of the system is shown and then the stenosis of cerebral arteries is induced in the circuit and, consequently, the effects are studied.

resultsIn the normal condition, the difference between pressure distribution of right and left efferent arteries (left and right ACA-A2, left and right MCA, left and right PCA-P2) is calculated to indicate the effect of anatomical difference between left and right sides of supplying arteries of the COW. In stenosis cases, the effect of internal carotid artery occlusion on efferent arteries pressure is investigated. The modeling results are verified by comparing to the clinical observation reported in the literature.

conclusionWe believe the presented model is a useful tool for representing the normal operation of the cardiovascular system and study of the pathologies.

Indexed as

Artery occlusioncardiovascular systemcerebrovascular systemcollateral vesselpressure waveforms

Identifiers

PMID25505747
PMCPMC4204494

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