NDLI: The Deformation Rate of Smooth Muscle Cells in Vessel Walls After Short-Duration Heating Dilatation in a Porcine Model Ex Vivo and In Vivo

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The Deformation Rate of Smooth Muscle Cells in Vessel Walls After Short-Duration Heating Dilatation in a Porcine Model Ex Vivo and In Vivo

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The Deformation Rate of Smooth Muscle Cells in Vessel Walls After Short-Duration Heating Dilatation in a Porcine Model Ex Vivo and In Vivo

Content Provider	SpringerLink
Author	Kunio, Mie Arai, Tsunenori
Copyright Year	2012
Abstract	We have proposed a novel short-duration thermal angioplasty with uniform temperature distribution. Although the dilatation mechanism of our short-duration heating dilatation was reported in our previous study, the influences on smooth muscle cells (SMCs) are not sufficiently understood. We studied the influences on SMCs in terms of shape change and discussed the relationship between the SMCs’ shape change and dilatation mechanism ex vivo and in vivo. We found that the SMCs were fixed in the stretched condition after our short-duration heating dilatation both ex vivo and in vivo. The deformation rate of SMCs’ shape, measured by the cells’ nuclei, was increased with rising balloon maximum temperature (T $_{balloon}$), and the same tendency was observed for the arterial dilatation rate. We hypothesize that the SMCs were fixed in the stretched condition because the arterial dilatation with our short-duration heating dilatation was performed without any plastic deformations of the vessel wall, causing the vessel wall itself to be stretched. We also prospect that the reasons for the positive correlation between the deformation rate of SMCs’ shape and T $_{balloon}$ are that (i) the area heated over 60 °C was expanded with rising T $_{balloon}$, and (ii) the arterial dilatation rate was also increased with rising T $_{balloon}$.
Starting Page	311
Ending Page	318
Page Count	8
File Format	PDF
ISSN	1869408X
Journal	Cardiovascular Engineering and Technology
Volume Number	3
Issue Number	3
e-ISSN	18694098
Language	English
Publisher	Springer US
Publisher Date	2012-05-08
Publisher Place	Boston
Access Restriction	Subscribed
Subject Keyword	Balloon angioplasty Thermal angioplasty Smooth muscle cell Deformation Arterial dilatation Cardiology Biomedical Engineering Biomedicine general
Content Type	Text
Resource Type	Article
Subject	Cardiology and Cardiovascular Medicine Biomedical Engineering

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The Deformation Rate of Smooth Muscle Cells in Vessel Walls After Short-Duration Heating Dilatation in a Porcine Model Ex Vivo and In Vivo

The Deformation Rate of Smooth Muscle Cells in Vessel Walls After Short-Duration Heating Dilatation in a Porcine Model Ex Vivo and In Vivo

The Deformation Rate of Smooth Muscle Cells in Vessel Walls After Short-Duration Heating Dilatation in a Porcine Model Ex Vivo and In Vivo (2012)

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The Deformation Rate of Smooth Muscle Cells in Vessel Walls After Short-Duration Heating Dilatation in a Porcine Model Ex Vivo and In Vivo

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The Deformation Rate of Smooth Muscle Cells in Vessel Walls After Short-Duration Heating Dilatation in a Porcine Model Ex Vivo and In Vivo