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Proceedings Papers

Imaging of Focused Ultrasound-Induced Shear Waves to Probe Mechanical Anisotropy of Tissue

Charlotte A Guertler, Ruth J Okamoto, Joel R Garbow, Hong Chen, Philip V Bayly

Proc. ASME. DMD2021, 2021 Design of Medical Devices Conference, V001T12A005, April 12–15, 2021

Paper No: DMD2021-1030

DOI: https://doi.org/10.1115/DMD2021-1030

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Topics: Anisotropy, Biological tissues, Elastography, Imaging, Magnetic resonance, Probes, Shear waves, Simulation, Ultrasound

Journal Articles

Multi-Excitation Magnetic Resonance Elastography of the Brain: Wave Propagation in Anisotropic White Matter

Daniel R. Smith, Charlotte A. Guertler, Ruth J. Okamoto, Anthony J. Romano, Philip V. Bayly, Curtis L. Johnson

J Biomech Eng. July 2020, 142(7): 071005.

Paper No: BIO-19-1033

DOI: https://doi.org/10.1115/1.4046199

Published Online: March 4, 2020

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Topics: Anisotropy, Brain, Elastography, Excitation, Magnetic resonance, Wave propagation, Waves, Displacement

Journal Articles

Estimation of Anisotropic Material Properties of Soft Tissue by MRI of Ultrasound-Induced Shear Waves

Charlotte A. Guertler, Ruth J. Okamoto, Jake A. Ireland, Christopher P. Pacia, Joel R. Garbow, Hong Chen, Philip V. Bayly

J Biomech Eng. March 2020, 142(3): 031001.

Paper No: BIO-19-1429

DOI: https://doi.org/10.1115/1.4046127

Published Online: February 28, 2020

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Topics: Anisotropy, Biological tissues, Displacement, Fibers, Polarization (Electricity), Polarization (Light), Polarization (Waves), Shear modulus, Shear waves, Simulation

Journal Articles

Shear Wave Propagation and Estimation of Material Parameters in a Nonlinear, Fibrous Material

Zuoxian Hou, Ruth J. Okamoto, Philip V. Bayly

J Biomech Eng. May 2020, 142(5): 051010.

Paper No: BIO-19-1172

DOI: https://doi.org/10.1115/1.4044504

Published Online: January 20, 2020

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Topics: Fibers, Shear (Mechanics), Shear waves, Waves

Journal Articles

Erratum: “The Relationship of Three-Dimensional Human Skull Motion to Brain Tissue Deformation in Magnetic Resonance Elastography Studies” (ASME J. Biomech. Eng., 2017, 139 (5), p. 051002; DOI: 10.1115/1.4036146 ) to Paper Number BIO-16-1363

Andrew A. Badachhape, Ruth J. Okamoto, Ramona S. Durham, Brent D. Efron, Sam J. Nadell, Curtis L. Johnson, Philip V. Bayly

J Biomech Eng. December 2018, 140(12): 127001.

Paper No: BIO-17-1588

DOI: https://doi.org/10.1115/1.4040947

Published Online: September 25, 2018

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Topics: Biological tissues, Brain, Deformation, Elastography, Errors, Magnetic resonance, Encryption, Displacement, Calibration

Journal Articles

The Relationship of Three-Dimensional Human Skull Motion to Brain Tissue Deformation in Magnetic Resonance Elastography Studies

Andrew A. Badachhape, Ruth J. Okamoto, Ramona S. Durham, Brent D. Efron, Sam J. Nadell, Curtis L. Johnson, Philip V. Bayly

J Biomech Eng. May 2017, 139(5): 051002.

Paper No: BIO-16-1363

DOI: https://doi.org/10.1115/1.4036146

Published Online: March 21, 2017

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Topics: Accelerometers, Biological tissues, Brain, Gelatin, Phantoms, Displacement

Proceedings Papers

Automated Estimation of Elastic Material Parameters of a Transversely Isotropic Material Using Asymmetric Indentation and Inverse Finite Element Analysis

Yuan Feng, Chung-Hao Lee, Lining Sun, Ruth J. Okamoto, Songbai Ji

Proc. ASME. IMECE2015, Volume 3: Biomedical and Biotechnology Engineering, V003T03A007, November 13–19, 2015

Paper No: IMECE2015-51112

DOI: https://doi.org/10.1115/IMECE2015-51112

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Topics: Finite element analysis, Biological tissues, Anisotropy, Fibers, Optimization, Brain, Isotropy, Muscle, Simulation, Soft tissues

Proceedings Papers

Identification of Anisotropic Material Parameters in Elastic Tissue Using Magnetic Resonance Imaging of Shear Waves

Dennis J. Tweten, Ruth J. Okamoto, John L. Schmidt, Joel R. Garbow, Philip V. Bayly

Proc. ASME. IDETC-CIE2015, Volume 8: 27th Conference on Mechanical Vibration and Noise, V008T13A106, August 2–5, 2015

Paper No: DETC2015-46539

DOI: https://doi.org/10.1115/DETC2015-46539

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Topics: Anisotropy, Biological tissues, Magnetic resonance imaging, Shear waves, Materials properties, Polarization (Electricity), Polarization (Light), Polarization (Waves), Waves, Brain

Proceedings Papers

Mechanics of Aortic Smooth Muscle Cells in Tissue Constructs: Effects of Matrix Composition

Wei Du, Kenneth M. Pryse, Elliot L. Elson, Ruth J. Okamoto

Proc. ASME. SBC2008, ASME 2008 Summer Bioengineering Conference, Parts A and B, 515-516, June 25–29, 2008

Paper No: SBC2008-192905

DOI: https://doi.org/10.1115/SBC2008-192905

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Topics: Biological tissues, Muscle, Diseases, Stress, Cardiovascular system, Fibers, Mechanical behavior

Proceedings Papers

Vascular Smooth Muscle Cell Mechanics During Cyclic Stretch: Effect of Serum and a Serum Substitute

Wei Du, Kenneth M. Pryse, Judy A. Fee, Elliot L. Elson, Ruth J. Okamoto

Proc. ASME. SBC2007, ASME 2007 Summer Bioengineering Conference, 267-268, June 20–24, 2007

Paper No: SBC2007-176205

DOI: https://doi.org/10.1115/SBC2007-176205

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Topics: Cellular mechanics, Muscle, Biological tissues, Diseases, Stress, Cardiovascular system, Fibers

Proceedings Papers

Anisotropic Behavior of White Matter in Shear and Implications for Transversely Isotropic Models

Ruth J. Okamoto, Yuan Feng, Guy M. Genin, Philip V. Bayly

Proc. ASME. SBC2013, Volume 1A: Abdominal Aortic Aneurysms; Active and Reactive Soft Matter; Atherosclerosis; BioFluid Mechanics; Education; Biotransport Phenomena; Bone, Joint and Spine Mechanics; Brain Injury; Cardiac Mechanics; Cardiovascular Devices, Fluids and Imaging; Cartilage and Disc Mechanics; Cell and Tissue Engineering; Cerebral Aneurysms; Computational Biofluid Dynamics; Device Design, Human Dynamics, and Rehabilitation; Drug Delivery and Disease Treatment; Engineered Cellular Environments, V01AT10A002, June 26–29, 2013

Paper No: SBC2013-14039

DOI: https://doi.org/10.1115/SBC2013-14039

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Topics: Anisotropy, Shear (Mechanics), Fibers, Brain, Density, Tensors

Proceedings Papers

Shear Wave Propagation of the Ferret Brain at Multiple Frequencies In Vivo

Yuan Feng, Yulin Chang, Erik H. Clayton, Ruth J. Okamoto, Philip V. Bayly

Proc. ASME. IMECE2012, Volume 2: Biomedical and Biotechnology, 779-785, November 9–15, 2012

Paper No: IMECE2012-88374

DOI: https://doi.org/10.1115/IMECE2012-88374

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Topics: Brain, Shear waves, Biological tissues, Computer simulation, Elastography, Magnetic resonance, Mechanical properties, Modeling, Storage, Traumatic brain injury

Proceedings Papers

Identification of a Transversely Isotropic Material Model for White Matter in the Brain

Yuan Feng, Ruth J. Okamoto, Ravi Namani, Guy M. Genin, Philip V. Bayly

Proc. ASME. IMECE2012, Volume 2: Biomedical and Biotechnology, 787-794, November 9–15, 2012

Paper No: IMECE2012-88610

DOI: https://doi.org/10.1115/IMECE2012-88610

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Topics: Brain, Anisotropy, Biological tissues, Fibers, Traumatic brain injury, Engineering simulation, Simulation

Proceedings Papers

The Apparent Flexural Rigidity of the Flagellar Axoneme Depends on Resistance to Inter-Doublet Sliding

Gang Xu, Kate S. Wilson, Ruth J. Okamoto, Jin-Yu Shao, Susan K. Dutcher, Philip V. Bayly

Proc. ASME. SBC2012, ASME 2012 Summer Bioengineering Conference, Parts A and B, 397-398, June 20–23, 2012

Paper No: SBC2012-80220

DOI: https://doi.org/10.1115/SBC2012-80220

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Topics: Deformation, Engines, Feedback, Fluids, Motors, Proteins, Stiffness

Proceedings Papers

The Dominant Mechanical Interaction Between the Brain and Skull In Vivo : Is Sliding Arrested at Key Points of Brain-Skull Tethering?

Teresa M. Abney, Y. Aaron Feng, Robert Pless, Ruth J. Okamoto, Guy M. Genin, Philip V. Bayly

Proc. ASME. SBC2010, ASME 2010 Summer Bioengineering Conference, Parts A and B, 907-908, June 16–19, 2010

Paper No: SBC2010-19466

DOI: https://doi.org/10.1115/SBC2010-19466

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Topics: Brain, Displacement, Computational mechanics, Imaging, Magnetic resonance, Magnetic resonance imaging, Phantoms, Traumatic brain injury

Proceedings Papers

Validation of Magnetic Resonance Elastography by Dynamic Shear Testing in the Shear Wave Regime

Ruth J. Okamoto, Erik H. Clayton, Kate S. Wilson, Philip V. Bayly

Proc. ASME. SBC2010, ASME 2010 Summer Bioengineering Conference, Parts A and B, 391-392, June 16–19, 2010

Paper No: SBC2010-19124

DOI: https://doi.org/10.1115/SBC2010-19124

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Topics: Elastography, Magnetic resonance, Shear (Mechanics), Shear waves, Testing, Shear modulus, Biological tissues, Biomaterials, Brain, Bridges (Structures)

Journal Articles

Mechanical Properties of Viscoelastic Media by Local Frequency Estimation of Divergence-Free Wave Fields

Erik H. Clayton, Ruth J. Okamoto, Philip V. Bayly

J Biomech Eng. February 2013, 135(2): 021025.

Paper No: BIO-12-1447

DOI: https://doi.org/10.1115/1.4023433

Published Online: February 7, 2013

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Topics: Anisotropy, Displacement, Mechanical properties, Shear modulus, Waves, Biological tissues, Wave propagation, Shear waves, Viscoelastic materials, Viscoelasticity

Journal Articles

One-Dimensional Viscoelastic Behavior of Fibroblast Populated Collagen Matrices

Jessica E. Wagenseil, Tetsuro Wakatsuki, Ruth J. Okamoto, George I. Zahalak, Elliot L. Elson

J Biomech Eng. October 2003, 125(5): 719–725.

DOI: https://doi.org/10.1115/1.1614818

Published Online: October 9, 2003

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Topics: Biological tissues, Cycles, Fibroblasts, Viscoelasticity, Mechanical behavior, Dimensions

Journal citation

NARROW

Imaging of Focused Ultrasound-Induced Shear Waves to Probe Mechanical Anisotropy of Tissue

Multi-Excitation Magnetic Resonance Elastography of the Brain: Wave Propagation in Anisotropic White Matter

Estimation of Anisotropic Material Properties of Soft Tissue by MRI of Ultrasound-Induced Shear Waves

Shear Wave Propagation and Estimation of Material Parameters in a Nonlinear, Fibrous Material

Erratum: “The Relationship of Three-Dimensional Human Skull Motion to Brain Tissue Deformation in Magnetic Resonance Elastography Studies” (ASME J. Biomech. Eng., 2017, 139 (5), p. 051002; DOI: 10.1115/1.4036146 ) to Paper Number BIO-16-1363

The Relationship of Three-Dimensional Human Skull Motion to Brain Tissue Deformation in Magnetic Resonance Elastography Studies

Automated Estimation of Elastic Material Parameters of a Transversely Isotropic Material Using Asymmetric Indentation and Inverse Finite Element Analysis

Identification of Anisotropic Material Parameters in Elastic Tissue Using Magnetic Resonance Imaging of Shear Waves

Mechanics of Aortic Smooth Muscle Cells in Tissue Constructs: Effects of Matrix Composition

Vascular Smooth Muscle Cell Mechanics During Cyclic Stretch: Effect of Serum and a Serum Substitute

Anisotropic Behavior of White Matter in Shear and Implications for Transversely Isotropic Models

Shear Wave Propagation of the Ferret Brain at Multiple Frequencies In Vivo

Identification of a Transversely Isotropic Material Model for White Matter in the Brain

The Apparent Flexural Rigidity of the Flagellar Axoneme Depends on Resistance to Inter-Doublet Sliding

The Dominant Mechanical Interaction Between the Brain and Skull In Vivo : Is Sliding Arrested at Key Points of Brain-Skull Tethering?

Validation of Magnetic Resonance Elastography by Dynamic Shear Testing in the Shear Wave Regime

Mechanical Properties of Viscoelastic Media by Local Frequency Estimation of Divergence-Free Wave Fields

One-Dimensional Viscoelastic Behavior of Fibroblast Populated Collagen Matrices

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