### Abstract

Pulse wave velocity (PWV) is widely used for estimating the stiffness of an artery. PWV is an average measurement of artery stiffness between two measuring sites. From measured PWV, the diameter and thickness are needed to calculate the elastic modulus of the artery. In this paper a new method of using ring resonant mode for estimation of arterial elastic modulus is proposed. To generate the ring resonance, a localized radiation force of ultrasound is remotely and non-invasively applied at the artery. The vibration response of the artery is measured by optical techniques. Three ring resonant modes are identified for estimation of the elastic modulus. The viscoelasticity and the complex modulus of the artery can be obtained. Experiments were carried out on a porcine artery embedded in gelatin. The estimation only requires the diameter of the artery, but does not need the thickness of the artery which is difficult to measure with accuracy and precision.

Original language | English (US) |
---|---|

Journal | Ultrasonics |

Volume | 44 |

Issue number | SUPPL. |

DOIs | |

State | Published - Dec 22 2006 |

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### Keywords

- Artery
- Elastic modulus
- Pulse wave velocity
- Ring resonance
- Ultrasound

### ASJC Scopus subject areas

- Safety, Risk, Reliability and Quality
- Acoustics and Ultrasonics

### Cite this

**Estimation of complex arterial elastic modulus from ring resonance excited by ultrasound radiation force.** / Zhang, Xiaoming; Greenleaf, James F.

Research output: Contribution to journal › Article

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TY - JOUR

T1 - Estimation of complex arterial elastic modulus from ring resonance excited by ultrasound radiation force

AU - Zhang, Xiaoming

AU - Greenleaf, James F

PY - 2006/12/22

Y1 - 2006/12/22

N2 - Pulse wave velocity (PWV) is widely used for estimating the stiffness of an artery. PWV is an average measurement of artery stiffness between two measuring sites. From measured PWV, the diameter and thickness are needed to calculate the elastic modulus of the artery. In this paper a new method of using ring resonant mode for estimation of arterial elastic modulus is proposed. To generate the ring resonance, a localized radiation force of ultrasound is remotely and non-invasively applied at the artery. The vibration response of the artery is measured by optical techniques. Three ring resonant modes are identified for estimation of the elastic modulus. The viscoelasticity and the complex modulus of the artery can be obtained. Experiments were carried out on a porcine artery embedded in gelatin. The estimation only requires the diameter of the artery, but does not need the thickness of the artery which is difficult to measure with accuracy and precision.

AB - Pulse wave velocity (PWV) is widely used for estimating the stiffness of an artery. PWV is an average measurement of artery stiffness between two measuring sites. From measured PWV, the diameter and thickness are needed to calculate the elastic modulus of the artery. In this paper a new method of using ring resonant mode for estimation of arterial elastic modulus is proposed. To generate the ring resonance, a localized radiation force of ultrasound is remotely and non-invasively applied at the artery. The vibration response of the artery is measured by optical techniques. Three ring resonant modes are identified for estimation of the elastic modulus. The viscoelasticity and the complex modulus of the artery can be obtained. Experiments were carried out on a porcine artery embedded in gelatin. The estimation only requires the diameter of the artery, but does not need the thickness of the artery which is difficult to measure with accuracy and precision.

KW - Artery

KW - Elastic modulus

KW - Pulse wave velocity

KW - Ring resonance

KW - Ultrasound

UR - http://www.scopus.com/inward/record.url?scp=33845692452&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33845692452&partnerID=8YFLogxK

U2 - 10.1016/j.ultras.2006.06.056

DO - 10.1016/j.ultras.2006.06.056

M3 - Article

C2 - 16860364

AN - SCOPUS:33845692452

VL - 44

JO - Ultrasonics

JF - Ultrasonics

SN - 0041-624X

IS - SUPPL.

ER -