MR imaging of shear waves generated by focused ultrasound

Tao Wu; Joel P. Felmlee; James F. Greenleaf; Stephen J. Riederer; Richard L. Ehman

doi:10.1002/(SICI)1522-2594(200001)43:1<111::AID-MRM13>3.0.CO;2-D

MR imaging of shear waves generated by focused ultrasound

Tao Wu, Joel P. Felmlee, James F. Greenleaf, Stephen J. Riederer, Richard L. Ehman

Research output: Contribution to journal › Article › peer-review

83 Scopus citations

Abstract

This study has shown that magnetic resonance elastography (MRE) can detect shear waves excited by focused ultrasound (FUS) in both gel phantoms and ex vivo muscle. Good agreement was shown between the shear modulus measured from MRE images generated using FUS and that using previously reported MRE techniques. The shear wave displacement amplitude at the FUS focus was studied and found to be proportional with both FUS ultrasonic pulse intensity and the FUS modulation pulse period over the range tested.

Original language	English (US)
Pages (from-to)	111-115
Number of pages	5
Journal	Magnetic Resonance in Medicine
Volume	43
Issue number	1
DOIs	https://doi.org/10.1002/(SICI)1522-2594(200001)43:1<111::AID-MRM13>3.0.CO;2-D
State	Published - 2000

Keywords

Elastography
Focused ultrasound
Magnetic resonance
Shear wave

ASJC Scopus subject areas

Radiology Nuclear Medicine and imaging

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10.1002/(SICI)1522-2594(200001)43:1<111::AID-MRM13>3.0.CO;2-D

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abstract = "This study has shown that magnetic resonance elastography (MRE) can detect shear waves excited by focused ultrasound (FUS) in both gel phantoms and ex vivo muscle. Good agreement was shown between the shear modulus measured from MRE images generated using FUS and that using previously reported MRE techniques. The shear wave displacement amplitude at the FUS focus was studied and found to be proportional with both FUS ultrasonic pulse intensity and the FUS modulation pulse period over the range tested.",

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AU - Felmlee, Joel P.

AU - Greenleaf, James F.

AU - Riederer, Stephen J.

AU - Ehman, Richard L.

PY - 2000

Y1 - 2000

N2 - This study has shown that magnetic resonance elastography (MRE) can detect shear waves excited by focused ultrasound (FUS) in both gel phantoms and ex vivo muscle. Good agreement was shown between the shear modulus measured from MRE images generated using FUS and that using previously reported MRE techniques. The shear wave displacement amplitude at the FUS focus was studied and found to be proportional with both FUS ultrasonic pulse intensity and the FUS modulation pulse period over the range tested.

AB - This study has shown that magnetic resonance elastography (MRE) can detect shear waves excited by focused ultrasound (FUS) in both gel phantoms and ex vivo muscle. Good agreement was shown between the shear modulus measured from MRE images generated using FUS and that using previously reported MRE techniques. The shear wave displacement amplitude at the FUS focus was studied and found to be proportional with both FUS ultrasonic pulse intensity and the FUS modulation pulse period over the range tested.

KW - Elastography

KW - Focused ultrasound

KW - Magnetic resonance

KW - Shear wave

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MR imaging of shear waves generated by focused ultrasound

Abstract

Keywords

ASJC Scopus subject areas

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