Dr. John B. Weaver Profile

Dr. John B. Weaver

Radiology Professor at Dartmouth-Hitchcock Medical Ctr.

SPIE Involvement:

Conference Program Committee | Editorial Board Member: Journal of Medical Imaging | Editor | Author

Publications (31)

Proceedings Article | 29 March 2013 Paper

Development of a poroelastic dynamic mechanical analysis technique for biphasic media

Adam Pattison, Matthew D. J. McGarry, John Weaver, Keith Paulsen

Proceedings Volume 8672, 86721P (2013) https://doi.org/10.1117/12.2008777

KEYWORDS: Chemical elements, Magnetic resonance elastography, Elastography, Tissues, Fiber Bragg gratings, Reconstruction algorithms, Neodymium, Electroluminescent displays, Statistical analysis, Protactinium

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Proceedings Article | 29 March 2013 Paper

Langevin equation simulation of Brownian magnetic nanoparticles with experimental and model comparisons

Daniel Reeves, Jurgen Weizenecker, John Weaver

Proceedings Volume 8672, 86721C (2013) https://doi.org/10.1117/12.2008683

KEYWORDS: Magnetism, Particles, Stochastic processes, Nanoparticles, Spectroscopy, Performance modeling, Magnetic sensors, Physics, Statistical modeling, Monte Carlo methods

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Proceedings Article | 16 April 2012 Paper

Alternative spatial encoding for imaging magnetic nanoparticles

John Weaver

Proceedings Volume 8317, 83171W (2012) https://doi.org/10.1117/12.913926

KEYWORDS: Nanoparticles, Magnetism, Computer programming, Magnetic particle imaging, Wavelets, Signal to noise ratio, Molecular imaging, Iron, Oxides, Signal generators

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Proceedings Article | 14 April 2012 Paper

MSB estimation of bound fraction: bias from binding energy uncertainty

John Weaver

Proceedings Volume 8317, 83170P (2012) https://doi.org/10.1117/12.915162

KEYWORDS: Nanoparticles, Magnetism, In vivo imaging, Error analysis, Imaging spectroscopy, Spectroscopy, Molecular imaging, Medical imaging, Iron, Oxides

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Proceedings Article | 14 April 2012 Paper

In vivo imaging and quantification of iron oxide nanoparticle uptake and biodistribution

P. Jacks Hoopes, Alicia Petryk, Barjor Gimi, Andrew Giustini, John Weaver, John Bischof, Ryan Chamberlain, Michael Garwood

Proceedings Volume 8317, 83170R (2012) https://doi.org/10.1117/12.916097

KEYWORDS: Tumors, Magnetic resonance imaging, Iron, Tissues, Computed tomography, In vivo imaging, Nanoparticles, Oxides, Magnetism, Cancer

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Proceedings Article | 16 March 2011 Paper

Chemical binding affinity estimation using MSB

John Weaver, Adam Rauwerdink

Proceedings Volume 7965, 79650Y (2011) https://doi.org/10.1117/12.878788

KEYWORDS: Nanoparticles, Magnetism, Motion measurement, In vivo imaging, Chemical analysis, Spectroscopy, Calibration, In vitro testing, Iron, Cancer

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Proceedings Article | 9 March 2010 Paper

Micro-rheology: evaluating the rigidity of the microenvironment surrounding antibody binding sites

John Weaver, Adam Rauwerdink, Irina Perreard, Rebecca Kilfoyle

Proceedings Volume 7626, 76261J (2010) https://doi.org/10.1117/12.846354

KEYWORDS: Nanoparticles, In vivo imaging, Magnetism, Thermal effects, Cancer, Motion measurement, Breast cancer, Distortion, Genetics, Spectroscopy

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Proceedings Article | 9 March 2010 Paper

The effect of viscosity on the phase of the nanoparticle magnetization induced by a harmonic applied field

John Weaver, Matthew Harding, Adam Rauwerdink, Eric Hansen

Proceedings Volume 7626, 762627 (2010) https://doi.org/10.1117/12.845576

KEYWORDS: Particles, Nanoparticles, Magnetism, In vivo imaging, Temperature metrology, Spectroscopy, Magnetic particle imaging, Motion measurement, Analytical research, Environmental sensing

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Proceedings Article | 28 February 2009 Paper

The analysis of nanoparticle magnetization vibration using magnetic spectroscopy

John Weaver, Adam Rauwerdink, Eric Hansen

Proceedings Volume 7262, 72622P (2009) https://doi.org/10.1117/12.816406

KEYWORDS: Nanoparticles, Magnetism, Temperature metrology, Distortion, In vivo imaging, Hydrogen, Spectroscopy, Motion measurement, Iron, Oxides

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Proceedings Article | 28 February 2009 Paper

Assessing the feasibility for a poroelastic reconstruction algorithm in MR elastography

Phillip Perrinez, Francis Kennedy, John Weaver, Keith Paulsen

Proceedings Volume 7262, 72621E (2009) https://doi.org/10.1117/12.811714

KEYWORDS: Tissues, Reconstruction algorithms, Solids, 3D modeling, Data modeling, Elastography, In vivo imaging, Chemical elements, Algorithm development, Protactinium

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Proceedings Article | 27 February 2009 Paper

MR elastography of hydrocephalus

Adam Pattison, S. Scott Lollis, Phillip Perríñez, John Weaver, Keith Paulsen

Proceedings Volume 7262, 72620A (2009) https://doi.org/10.1117/12.811820

KEYWORDS: Brain, Tissues, Magnetic resonance elastography, Magnetic resonance imaging, Control systems, Image segmentation, Protactinium, Elastography, Reconstruction algorithms, Actuators

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Proceedings Article | 12 March 2008 Paper

Imaging magnetic nanoparticles using the signal's frequency spectrum

John Weaver, Adam Rauwerdink, B. Stuart Trembly, Charles Sullivan

Proceedings Volume 6916, 69160Y (2008) https://doi.org/10.1117/12.773770

KEYWORDS: Nanoparticles, Magnetism, Amplifiers, Signal detection, Signal generators, Condition numbers, Magnetic particle imaging, Single photon emission computed tomography, Molecular imaging, Particles

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Proceedings Article | 6 April 2007 Paper

Reproducibility of MRE shear modulus estimates

John Weaver, Timothy Miller, Marvin Doyley, Huifang Wang, Phillip Perrinez, Yvonne Cheung, Francis Kennedy, Keith Paulsen

Proceedings Volume 6511, 65111T (2007) https://doi.org/10.1117/12.713772

KEYWORDS: Tissues, Motion estimation, Scanners, Magnetic resonance imaging, Signal to noise ratio, Motion measurement, Magnetic resonance elastography, Phase measurement, Cancer, Medical imaging

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Proceedings Article | 6 April 2007 Paper

The effects of interstitial tissue pressure on the measured shear modulus in vivo

John Weaver, P. Perrinez, J. Bergeron, F. Kennedy, H. Wang, S. Scott Lollis, M. Doyley, P. Hoopes, K. Paulsen

Proceedings Volume 6511, 65111A (2007) https://doi.org/10.1117/12.713781

KEYWORDS: Tissues, Brain, Cancer, In vivo imaging, Magnetic resonance elastography, Atmospheric modeling, Elastography, Animal model studies, Actuators, Pathology

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Proceedings Article | 29 March 2007 Paper

A phase unwrapping method for large-motion phase data in MR elastography

Huifang Wang, John Weaver, Marvin Doyley, Francis Kennedy, Keith Paulsen

Proceedings Volume 6511, 65111S (2007) https://doi.org/10.1117/12.710073

KEYWORDS: Magnetic resonance elastography, Monte Carlo methods, Motion estimation, Elastography, Error analysis, Data centers, Wave propagation, Medical imaging, Motion analysis, Motion models

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Proceedings Article | 29 March 2007 Paper

Magnetic resonance microwave absorption imaging: initial experimental results in phantoms

Bin Xie, John Weaver, Paul Meaney, Keith Paulsen

Proceedings Volume 6511, 65112K (2007) https://doi.org/10.1117/12.710666

KEYWORDS: Microwave radiation, Magnetic resonance imaging, Tissues, Absorption, Magnetism, Scanners, Computer programming, Magnetoencephalography, Waveguides, Signal to noise ratio

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Proceedings Article | 13 March 2006 Paper

Optimized motion estimation for MRE data with reduced motion encodes

Huifang Wang, John Weaver, Marvin Doyley, Qing Feng, Francis Kennedy, Keith Paulsen

Proceedings Volume 6143, 614325 (2006) https://doi.org/10.1117/12.650135

KEYWORDS: Magnetic resonance elastography, Motion estimation, Tissues, Computer programming, Error analysis, Computer simulations, Monte Carlo methods, Fourier transforms, Phase measurement, Data acquisition

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Proceedings Article | 13 March 2006 Paper

MR elastographic methods for the evaluation of plantar fat pads: preliminary comparison of the shear modulus for shearing deformation and compressive deformation in normal subjects

John Weaver, Timothy Miller, Philip Perrinez, Marvin Doyley, Huifang Wang, Yvonne Cheung, James Wrobel, Richard Comi, Francis Kennedy, Keith Paulsen

Proceedings Volume 6143, 61430Y (2006) https://doi.org/10.1117/12.652828

KEYWORDS: Tissues, Computing systems, Motion measurement, Actuators, Magnetic resonance imaging, Anisotropy, In vivo imaging, Signal generators, Elastography, Magnetic resonance elastography

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SPIE Journal Paper | 1 September 2005 Open Access

Combining near-infrared tomography and magnetic resonance imaging to study in vivo breast tissue: implementation of a Laplacian-type regularization to incorporate magnetic resonance structure

Ben Brooksby, Shudong Jiang, Hamid Dehghani, Brian Pogue, Keith Paulsen, John Weaver, Christine Kogel, Steven Poplack

JBO, Vol. 10, Issue 05, 051504, (September 2005) https://doi.org/10.1117/12.10.1117/1.2098627

KEYWORDS: Magnetic resonance imaging, Near infrared, Tissues, Breast, Scattering, Absorption, Imaging systems, Tomography, Tissue optics, Reconstruction algorithms

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Proceedings Article | 28 April 2005 Paper

Quantifying adipose and fibroglandular breast tissue properties using MRI-guided NIR tomography

Ben Brooksby, Subhadra Srinivasan, Brian Pogue, Shudong Jiang, Hamid Dehghani, Christine Kogel, John Weaver, Steven Poplack, Justin Pearlman, Keith Paulsen

Proceedings Volume 5693, (2005) https://doi.org/10.1117/12.590498

KEYWORDS: Tissues, Magnetic resonance imaging, Near infrared, Breast, Scattering, Tissue optics, Image restoration, Spatial resolution, Tomography, Imaging systems

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Proceedings Article | 4 December 2000 Paper

Differential affine motion estimation for medical image registration

Senthil Periaswamy, John Weaver, Dennis Healy, Daniel Rockmore, Peter Kostelec, Hany Farid

Proceedings Volume 4119, (2000) https://doi.org/10.1117/12.408594

KEYWORDS: Image registration, Motion estimation, Medical imaging, Error analysis, Affine motion model, Motion models, Mathematics, Fourier transforms, Image analysis, Computer science

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Proceedings Article | 6 June 2000 Paper

Subzone-based nonlinear inversion scheme for viscoelastic tissue properties

Elijah Van Houten, Keith Paulsen, Michael Miga, Francis Kennedy, John Weaver

Proceedings Volume 3979, (2000) https://doi.org/10.1117/12.387716

KEYWORDS: Tissues, Reconstruction algorithms, Chemical elements, Ions, Signal attenuation, Inverse problems, Finite element methods, Cancer, Computer simulations, Magnetic resonance imaging

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Proceedings Article | 21 May 1999 Paper

Automated multiscale elastic image registration using correlation

Senthil Periaswamy, John Weaver, Dennis Healy, Peter Kostelec

Proceedings Volume 3661, (1999) https://doi.org/10.1117/12.348641

KEYWORDS: Image registration, Image restoration, Image processing, Rigid registration, Mammography, Image segmentation, Chest, Brain, Magnetic resonance imaging, 3D image processing

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Proceedings Article | 16 April 1996 Paper

MR imaging with a reduced number of encoding steps

John Weaver, Dennis Healy, Douglas Warner, Sumit Chawla, Jian Lu

Proceedings Volume 2710, (1996) https://doi.org/10.1117/12.237981

KEYWORDS: Computer programming, Spatial frequencies, Signal to noise ratio, Magnetic resonance imaging, Image quality, Wavelets, Interference (communication), Image segmentation, Imaging spectroscopy, Functional magnetic resonance imaging

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Proceedings Article | 6 April 1995 Paper

Statistical best bases for fast encoding in magnetic resonance imaging

Dennis Healy, Douglas Warner, John Weaver

Proceedings Volume 2491, (1995) https://doi.org/10.1117/12.205440

KEYWORDS: Magnetic resonance imaging, Computer programming, Signal to noise ratio, Magnetism, Fourier transforms, Data acquisition, Wavelets, Brain, Phase measurement, Head

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Proceedings Article | 11 October 1994 Paper

Reduced motion artifacts in magnetic resonance imaging by adaptive spatio-temporal multiresolution reconstruction

Tim Olson, Dennis Healy, John Weaver

Proceedings Volume 2303, (1994) https://doi.org/10.1117/12.188793

KEYWORDS: Magnetic resonance imaging, Fourier transforms, Motion models, Radon transform, Reconstruction algorithms, Motion estimation, Data acquisition, Wavelets, Magnetism, Heart

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SPIE Journal Paper | 1 July 1994

Contrast enhancement of medical images using multiscale edge representation

Jian Lu, Dennis Healy, John Weaver

OE, Vol. 33, Issue 07, (July 1994) https://doi.org/10.1117/12.10.1117/12.172254

KEYWORDS: Image enhancement, Medical imaging, Wavelet transforms, Image contrast enhancement, Wavelets, Reconstruction algorithms, X-rays, Image processing, Denoising, Image segmentation

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Proceedings Article | 15 March 1994 Paper

Classification of masses in digitized mammograms with features in the wavelet transform domain

John Weaver, Dennis Healy, Helene Nagy, Steven Poplack, Jian Lu, Tracy Sauerland, David Langdon

Proceedings Volume 2242, (1994) https://doi.org/10.1117/12.170069

KEYWORDS: Wavelet transforms, Mammography, Wavelets, Biopsy, Visualization, Digital mammography, Sensors, Edge detection, Tissues, Breast

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Proceedings Article | 15 March 1994 Paper

Reduced motion artifacts in magnetic resonance imaging by adaptive spatiotemporal multiresolution reconstruction

Dennis Healy, Tim Olson, John Weaver

Proceedings Volume 2242, (1994) https://doi.org/10.1117/12.170071

KEYWORDS: Magnetic resonance imaging, Fourier transforms, Wavelets, Motion models, Radon transform, Motion estimation, Data acquisition, Reconstruction algorithms, Heart, Magnetism

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Proceedings Article | 15 March 1994 Paper

Contrast enhancement of medical images using multiscale edge representation

Jian Lu, Dennis Healy, John Weaver

Proceedings Volume 2242, (1994) https://doi.org/10.1117/12.170070

KEYWORDS: Image enhancement, Medical imaging, Denoising, Image contrast enhancement, Reconstruction algorithms, Wavelets, Lutetium, Image analysis, Mammography, Algorithm development

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Proceedings Article | 1 November 1993 Paper

Fast updating in MRI via multiscale localization

Tim Olson, Dennis Healy, John Weaver, Joe DeStefano

Proceedings Volume 2034, (1993) https://doi.org/10.1117/12.162089

KEYWORDS: Fourier transforms, Magnetic resonance imaging, Radon transform, Wavelets, Reconstruction algorithms, Data acquisition, Computed tomography, Magnetism, Signal detection, Algorithms

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Showing 5 of 31 publications

Proceedings Volume Editor (5)

SPIE Conference Volume | 18 April 2014

Medical Imaging 2014: Biomedical Applications in Molecular, Structural, and Functional Imaging

SPIE Conference Volume | 16 April 2013

Medical Imaging 2013: Biomedical Applications in Molecular, Structural, and Functional Imaging

SPIE Conference Volume | 25 April 2012

Medical Imaging 2012: Biomedical Applications in Molecular, Structural, and Functional Imaging

SPIE Conference Volume | 4 March 2011

Medical Imaging 2011: Biomedical Applications in Molecular, Structural, and Functional Imaging

SPIE Conference Volume | 9 March 2010

Medical Imaging 2010: Biomedical Applications in Molecular, Structural, and Functional Imaging

Conference Committee Involvement (19)

Clinical and Biomedical Imaging

16 February 2025 | San Diego, California, United States

Clinical and Biomedical Imaging

20 February 2024 | San Diego, California, United States