### Abstract

Pulse wave velocity (PWV) is widely used for estimating the stiffness of an artery. However, PWV is an average indicator of artery stiffness between two measuring points, and therefore does not identify local stiffness. We have developed a noninvasive method for generating and detecting the wave propagation in the arterial wall. The phase velocity can be measured accurately over a few millimeters. In this paper, a mathematical model for group velocity analysis is developed from a three-dimensional cylindrical shell theory. Experimental studies on group velocity are carried out on natural latex tubes in air. The theoretical analysis agrees with the experiments well. The theory can be used for estimating the elasticity of arteries from the group velocity measurements.

Original language | English (US) |
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Title of host publication | Proceedings - IEEE Ultrasonics Symposium |

DOIs | |

State | Published - 2009 |

Event | 2009 IEEE International Ultrasonics Symposium, IUS 2009 - Rome, Italy Duration: Sep 20 2009 → Sep 23 2009 |

### Other

Other | 2009 IEEE International Ultrasonics Symposium, IUS 2009 |
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Country | Italy |

City | Rome |

Period | 9/20/09 → 9/23/09 |

### Fingerprint

### Keywords

- Artery
- Elasticity
- Group velocity
- Implse wave

### ASJC Scopus subject areas

- Acoustics and Ultrasonics

### Cite this

*Proceedings - IEEE Ultrasonics Symposium*[5441406] https://doi.org/10.1109/ULTSYM.2009.5441406

**Theoretical and experimental studies on group velocity for estimating the elasticity of arteries.** / Zhang, Xiaoming; Greenleaf, James F.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*Proceedings - IEEE Ultrasonics Symposium.*, 5441406, 2009 IEEE International Ultrasonics Symposium, IUS 2009, Rome, Italy, 9/20/09. https://doi.org/10.1109/ULTSYM.2009.5441406

}

TY - GEN

T1 - Theoretical and experimental studies on group velocity for estimating the elasticity of arteries

AU - Zhang, Xiaoming

AU - Greenleaf, James F

PY - 2009

Y1 - 2009

N2 - Pulse wave velocity (PWV) is widely used for estimating the stiffness of an artery. However, PWV is an average indicator of artery stiffness between two measuring points, and therefore does not identify local stiffness. We have developed a noninvasive method for generating and detecting the wave propagation in the arterial wall. The phase velocity can be measured accurately over a few millimeters. In this paper, a mathematical model for group velocity analysis is developed from a three-dimensional cylindrical shell theory. Experimental studies on group velocity are carried out on natural latex tubes in air. The theoretical analysis agrees with the experiments well. The theory can be used for estimating the elasticity of arteries from the group velocity measurements.

AB - Pulse wave velocity (PWV) is widely used for estimating the stiffness of an artery. However, PWV is an average indicator of artery stiffness between two measuring points, and therefore does not identify local stiffness. We have developed a noninvasive method for generating and detecting the wave propagation in the arterial wall. The phase velocity can be measured accurately over a few millimeters. In this paper, a mathematical model for group velocity analysis is developed from a three-dimensional cylindrical shell theory. Experimental studies on group velocity are carried out on natural latex tubes in air. The theoretical analysis agrees with the experiments well. The theory can be used for estimating the elasticity of arteries from the group velocity measurements.

KW - Artery

KW - Elasticity

KW - Group velocity

KW - Implse wave

UR - http://www.scopus.com/inward/record.url?scp=77952812941&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77952812941&partnerID=8YFLogxK

U2 - 10.1109/ULTSYM.2009.5441406

DO - 10.1109/ULTSYM.2009.5441406

M3 - Conference contribution

AN - SCOPUS:77952812941

SN - 9781424443895

BT - Proceedings - IEEE Ultrasonics Symposium

ER -