Image artifacts in intravascular elastography

Intravascular ultrasound is being investigated as a tool for imaging the local elasticity of atherosclerotic vessels: the ultimate goal is to obtain images of the (compression or shear) modulus of elasticity. In practice, radial strain images are used to depict local hardness. The approximate nature...

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Main Authors: De Korte, C.L., Cespedes, E.I., Van der Steen, A.F.W., Lancee, C.T.
Format: Conference Proceeding
Language:English
Subjects:
Boundary conditions
Capacitive sensors
Cardiology
Elasticity
Finite element methods
Imaging phantoms
Morphology
Silicon carbide
Sonogram
Ultrasonic imaging
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container_end_page 862 vol.2
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creator De Korte, C.L.
Cespedes, E.I.
Van der Steen, A.F.W.
Lancee, C.T.
description Intravascular ultrasound is being investigated as a tool for imaging the local elasticity of atherosclerotic vessels: the ultimate goal is to obtain images of the (compression or shear) modulus of elasticity. In practice, radial strain images are used to depict local hardness. The approximate nature of this technique can result in image artifacts that must be understood and corrected for. Several artifacts are described and characterized using phantom studies and finite element modelling. In simple morphologies compensation for the artifacts may be possible, but complex morphologies require complex compensations. In these cases, the finite element method can assist in a correct interpretation of local tissue hardness from strain images.
doi_str_mv 10.1109/IEMBS.1996.652012
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identifier ISBN: 9780780338111
ispartof Proceedings of 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 1996, Vol.2, p.861-862 vol.2
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects Boundary conditions
Capacitive sensors
Cardiology
Elasticity
Finite element methods
Imaging phantoms
Morphology
Silicon carbide
Sonogram
Ultrasonic imaging
title Image artifacts in intravascular elastography
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