Comparison of finite elements model elastograms and IVUS elastograms acquired from phantoms and arteries

Radj A. Baldewsing; Chris L. De Korte; Frits Mastik; Johannes A. Schaar; Antonius F.W. Van der Steen

Comparison of finite elements model elastograms and IVUS elastograms acquired from phantoms and arteries

Radj A. Baldewsing^*, Chris L. De Korte, Frits Mastik, Johannes A. Schaar, Antonius F.W. Van der Steen

^*Corresponding author for this work

Cardiology

Research output: Contribution to journal › Conference article › Popular

3 Citations (Scopus)

Abstract

Knowledge of the Young's modulus distribution of an atherosclerotic artery allows for differentiation between its components. Intravascular elastography generates an artifactual image of this Young's modulus distribution. A finite element model (FEM) can assist in interpreting the elastogram and give its Young's modulus distribution by inverse problem solution. Intravascular ultrasound (IVUS) measurements were performed on a hard phantom with soft eccentric plaque and an atherosclerotic coronary artery. The complex FEM geometry and Young's modulus distribution were defined using a custom-made graphical user interface. Next elastograms were calculated from IVUS data and compared with FEM elastograms. IVUS and FEM elastograms showed excellent agreement in case of the phantom and a similar pattern in case of the artery. Strain values in the FEM elastogram appeared highly sensitive for variations in the Young's modulus but not in the Poisson's ratio.

Original language	English
Pages (from-to)	1921-1924
Number of pages	4
Journal	Proceedings of the IEEE Ultrasonics Symposium
Volume	2
Publication status	Published - 2002
Event	2002 IEEE Ultrasonics Symposium - Munich, Germany Duration: 8 Oct 2002 → 11 Oct 2002

Cite this

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title = "Comparison of finite elements model elastograms and IVUS elastograms acquired from phantoms and arteries",

abstract = "Knowledge of the Young's modulus distribution of an atherosclerotic artery allows for differentiation between its components. Intravascular elastography generates an artifactual image of this Young's modulus distribution. A finite element model (FEM) can assist in interpreting the elastogram and give its Young's modulus distribution by inverse problem solution. Intravascular ultrasound (IVUS) measurements were performed on a hard phantom with soft eccentric plaque and an atherosclerotic coronary artery. The complex FEM geometry and Young's modulus distribution were defined using a custom-made graphical user interface. Next elastograms were calculated from IVUS data and compared with FEM elastograms. IVUS and FEM elastograms showed excellent agreement in case of the phantom and a similar pattern in case of the artery. Strain values in the FEM elastogram appeared highly sensitive for variations in the Young's modulus but not in the Poisson's ratio.",

author = "Baldewsing, {Radj A.} and {De Korte}, {Chris L.} and Frits Mastik and Schaar, {Johannes A.} and {Van der Steen}, {Antonius F.W.}",

year = "2002",

language = "English",

volume = "2",

pages = "1921--1924",

journal = "Proceedings of the IEEE Ultrasonics Symposium",

issn = "1051-0117",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

note = "2002 IEEE Ultrasonics Symposium ; Conference date: 08-10-2002 Through 11-10-2002",

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TY - JOUR

T1 - Comparison of finite elements model elastograms and IVUS elastograms acquired from phantoms and arteries

AU - Baldewsing, Radj A.

AU - De Korte, Chris L.

AU - Mastik, Frits

AU - Schaar, Johannes A.

AU - Van der Steen, Antonius F.W.

PY - 2002

Y1 - 2002

N2 - Knowledge of the Young's modulus distribution of an atherosclerotic artery allows for differentiation between its components. Intravascular elastography generates an artifactual image of this Young's modulus distribution. A finite element model (FEM) can assist in interpreting the elastogram and give its Young's modulus distribution by inverse problem solution. Intravascular ultrasound (IVUS) measurements were performed on a hard phantom with soft eccentric plaque and an atherosclerotic coronary artery. The complex FEM geometry and Young's modulus distribution were defined using a custom-made graphical user interface. Next elastograms were calculated from IVUS data and compared with FEM elastograms. IVUS and FEM elastograms showed excellent agreement in case of the phantom and a similar pattern in case of the artery. Strain values in the FEM elastogram appeared highly sensitive for variations in the Young's modulus but not in the Poisson's ratio.

AB - Knowledge of the Young's modulus distribution of an atherosclerotic artery allows for differentiation between its components. Intravascular elastography generates an artifactual image of this Young's modulus distribution. A finite element model (FEM) can assist in interpreting the elastogram and give its Young's modulus distribution by inverse problem solution. Intravascular ultrasound (IVUS) measurements were performed on a hard phantom with soft eccentric plaque and an atherosclerotic coronary artery. The complex FEM geometry and Young's modulus distribution were defined using a custom-made graphical user interface. Next elastograms were calculated from IVUS data and compared with FEM elastograms. IVUS and FEM elastograms showed excellent agreement in case of the phantom and a similar pattern in case of the artery. Strain values in the FEM elastogram appeared highly sensitive for variations in the Young's modulus but not in the Poisson's ratio.

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M3 - Conference article

AN - SCOPUS:0036989184

SN - 1051-0117

VL - 2

SP - 1921

EP - 1924

JO - Proceedings of the IEEE Ultrasonics Symposium

JF - Proceedings of the IEEE Ultrasonics Symposium

T2 - 2002 IEEE Ultrasonics Symposium

Y2 - 8 October 2002 through 11 October 2002

ER -

Comparison of finite elements model elastograms and IVUS elastograms acquired from phantoms and arteries

Abstract

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