Estimation of tissue's elasticity with surface wave speed (L)

被引：80

作者：

Zhang, Xiaoming ^{[1
]}

Greenleaf, James F. ^{[1
]}

机构：

[1] Mayo Clin, Coll Med, Dept Physiol & Biomed Engn, Rochester, MN 55905 USA

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2007年 / 122卷 / 05期

关键词：

VISCOELASTIC HALF-SPACE; MEDICAL DIAGNOSIS; RADIATION FORCE; IN-VIVO; ULTRASOUND; PROPAGATION; GENERATION; MODULUS; SOFT;

D O I：

10.1121/1.2785045

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The mechanical response of tissues to external forces has gained considerable interest in medical diagnosis. One approach to imaging tissue elastic properties is to apply an external force on the surface of the body. Another approach is to generate a localized force inside the tissue with the radiation force of ultrasound. In this paper, a new method is developed to estimate tissue's elasticity based on surface wave speed measurement. The theory of surface wave speed is developed for estimating tissue's elasticity. Experiments are carried out on a tissue-mimicking ultrasound phantom. An amplitude modulated ultrasound signal of a few hundred hertz is used to generate a localized force in the phantom. The surface wave fields are measured with a laser vibrometer. It shows that the surface wave speed can be used for inversely estimating tissue's elastic properties based on tissue's surface measurement. (c) 2007 Acoustical Society of America.

引用

页码：2522 / 2525

页数：4

共 17 条

[1] Supersonic shear imaging: A new technique for soft tissue elasticity mapping [J].

Bercoff, J ;

Tanter, M ;

Fink, M .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2004, 51 (04) :396-409

[2] Ultrasound-stimulated vibro-acoustic spectrography [J].

Fatemi, M ;

Greenleaf, JF .

SCIENCE, 1998, 280 (5360) :82-85

[3] In vivo real-time freehand palpation imaging [J].

Hall, TJ ;

Zhu, YN ;

Spalding, CS .

ULTRASOUND IN MEDICINE AND BIOLOGY, 2003, 29 (03) :427-435

[4] Nonlinear vibroacoustic processes at the surface of a biological tissue [J].

Klochkov, BN .

ACOUSTICAL PHYSICS, 2000, 46 (05) :621-623

[5] SONOELASTICITY IMAGES DERIVED FROM ULTRASOUND SIGNALS IN MECHANICALLY VIBRATED TISSUES [J].

LERNER, RM ;

HUANG, SR ;

PARKER, KJ .

ULTRASOUND IN MEDICINE AND BIOLOGY, 1990, 16 (03) :231-239

[6] THE FIELD AND RADIATION IMPEDANCE OF MECHANICAL RADIATORS ON THE FREE SURFACE OF A SEMI-INFINITE ISOTROPIC SOLID [J].

MILLER, GF ;

PURSEY, H .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1954, 223 (1155) :521-541

[7]

Nichols W.N., 1990, MCDONALDS BLOOD FLOW, V3rd ed.

[8] Shear-wave generation using acoustic radiation force:: In vivo and ex vivo results [J].

Nightingale, K ;

McAleavey, S ;

Trahey, G .

ULTRASOUND IN MEDICINE AND BIOLOGY, 2003, 29 (12) :1715-1723

[9] ELASTOGRAPHY - A QUANTITATIVE METHOD FOR IMAGING THE ELASTICITY OF BIOLOGICAL TISSUES [J].

OPHIR, J ;

CESPEDES, I ;

PONNEKANTI, H ;

YAZDI, Y ;

LI, X .

ULTRASONIC IMAGING, 1991, 13 (02) :111-134

[10] Excitation and propagation of surface waves on a viscoelastic half-space with application to medical diagnosis [J].

Royston, TJ ;

Mansy, HA ;

Sandler, RH .

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1999, 106 (06) :3678-3686

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