MRI flow measurements with a flexible stenosis phantom

Alina Ibbeken; Pragathi Gurumurthy; Fenja Zell; Christina Hagen; Martin A. Koch; Thorsten M. Buzug

doi:10.1515/cdbme-2019-0142

MRI flow measurements with a flexible stenosis phantom

Alina Ibbeken^*, Pragathi Gurumurthy, Fenja Zell, Christina Hagen, Martin A. Koch, Thorsten M. Buzug

^*Corresponding author for this work

Institute of Medical Engineering

Abstract

Obstructive sleep apnea (OSA) is a common sleep disorder caused by the collapse of the upper airway during sleep due to a shift of soft tissues. To optimise the treatment, one needs a better understanding of the patient-specific causes of OSA. As a first step, a flexible tube with a stenosis was manufactured, representing a simple model of the pharynx geometry. The phantom has been used to carry out magnetic resonance imaging (MRI) flow sensitive measurements, to investigate the flow conditions that lead to the collapse. This contribution is concerned with the comparison and analysis of the flow and phantom deformation using varying boundary conditions, such as the Reynolds number and transmural pressure.

Original language	English
Journal	Current Directions in Biomedical Engineering
Volume	5
Issue number	1
Pages (from-to)	565-568
Number of pages	4
ISSN	2364-5504
DOIs	https://doi.org/10.1515/cdbme-2019-0142
Publication status	Published - 01.09.2019

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AU - Ibbeken, Alina

AU - Gurumurthy, Pragathi

AU - Zell, Fenja

AU - Hagen, Christina

AU - Koch, Martin A.

AU - Buzug, Thorsten M.

PY - 2019/9/1

Y1 - 2019/9/1

N2 - Obstructive sleep apnea (OSA) is a common sleep disorder caused by the collapse of the upper airway during sleep due to a shift of soft tissues. To optimise the treatment, one needs a better understanding of the patient-specific causes of OSA. As a first step, a flexible tube with a stenosis was manufactured, representing a simple model of the pharynx geometry. The phantom has been used to carry out magnetic resonance imaging (MRI) flow sensitive measurements, to investigate the flow conditions that lead to the collapse. This contribution is concerned with the comparison and analysis of the flow and phantom deformation using varying boundary conditions, such as the Reynolds number and transmural pressure.

AB - Obstructive sleep apnea (OSA) is a common sleep disorder caused by the collapse of the upper airway during sleep due to a shift of soft tissues. To optimise the treatment, one needs a better understanding of the patient-specific causes of OSA. As a first step, a flexible tube with a stenosis was manufactured, representing a simple model of the pharynx geometry. The phantom has been used to carry out magnetic resonance imaging (MRI) flow sensitive measurements, to investigate the flow conditions that lead to the collapse. This contribution is concerned with the comparison and analysis of the flow and phantom deformation using varying boundary conditions, such as the Reynolds number and transmural pressure.

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JO - Current Directions in Biomedical Engineering

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MRI flow measurements with a flexible stenosis phantom

Abstract

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