Electrical Models in the Analysis of Hemodynamic Characteristics of Arteriovenous Malformations
| Autor: | Guido Guglielmi |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
0301 basic medicine
medicine.medical_specialty business.industry medicine.medical_treatment Systemic blood pressure Hemodynamics Arteriovenous malformation Original Articles Flow pattern medicine.disease Surgery 03 medical and health sciences 030104 developmental biology 0302 clinical medicine medicine Radiology Embolization business 030217 neurology & neurosurgery |
| Zdroj: | Interventional Neuroradiology. 12:9-15 |
| ISSN: | 2385-2011 1591-0199 |
| DOI: | 10.1177/159101990601200103 |
| Popis: | This paper describes the creation of two electric arteriovenous malformation (AVM) models where electric resistors simulate AVM vessels. The flow of electrons simulates the flow of blood. Using the models, it was possible to analyze the pressure and flow patterns in the nidus of a small, low-flow AVM and in the nidus of a large, high-flow AVM. “Normal” hemodynamic “physiologic” conditions of the two AVMs were studied, including the autoregulation of normal brain surrounding the AVMs. It is the first time that the hemodynamics within the different parts of the nidus (arterious, arteriolar, venular, venous) can be determined. The models will be utilized to assess AVM hemodynamic changes when different parameters (systemic blood pressure, embolization of arterial feeders, embolization of nidus, embolization of draining veins, surgical by-pass of the AVM) are changed. This will be the subject of part 2 of this paper. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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