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List of works by William D O'Brien

A Phantom-Based Assessment of Repeatability and Reproducibility of Transvaginal Quantitative Ultrasound

scientific article published on 14 June 2019

A Pilot Comparative Study of Quantitative Ultrasound, Conventional Ultrasound, and MRI for Predicting Histology-Determined Steatosis Grade in Adult Nonalcoholic Fatty Liver Disease

scientific article published on 7 March 2017

A Temporal Study of Ultrasound Contrast Agent-Induced Changes in Capillary Density ⬇️

scientific article published on September 1, 2010

A model for estimating ultrasound attenuation along the propagation path to the fetus from backscattered waveforms

scientific article published on August 2005

A regularized inverse approach to ultrasonic pulse-echo imaging.

scientific article

Acoustic output upper limits proposition: should upper limits be retained?

scientific article published on 01 December 2002

Analysis of Two Quantitative Ultrasound Approaches

scientific article published in September 2017

Analysis of human fibroadenomas using three-dimensional impedance maps

scientific article

Application of three scattering models to characterization of solid tumors in mice

scientific article published on April 2006

Arrhythmias in rat hearts exposed to pulsed ultrasound after intravenous injection of a contrast agent

scientific article published on 01 December 2002

Assessment of Hepatic Steatosis in Nonalcoholic Fatty Liver Disease by Using Quantitative US

scientific article published on 04 February 2020

Attenuation coefficient and propagation speed estimates of intercostal tissue as a function of pig age

scientific article published on 01 October 2002

Attenuation coefficient and propagation speed estimates of rat and pig intercostal tissue as a function of temperature

scientific article published on 01 October 2002

Beyond Cervical Length: A Pilot Study of Ultrasonic Attenuation for Early Detection of Preterm Birth Risk

scientific article

Characterization of tissue microstructure using ultrasonic backscatter: theory and technique for optimization using a Gaussian form factor.

scientific article published in September 2002

Comparison of ultrasound attenuation and backscatter estimates in layered tissue-mimicking phantoms among three clinical scanners

scientific article

Contrast Ultrasound Imaging Does Not Affect Heat Shock Protein 70 Expression in Cholesterol-Fed Rabbit Aorta

scientific article

Contrast Ultrasound Imaging of the Aorta Does Not Affect Progression of Atherosclerosis or Cardiovascular Biomarkers in ApoE-/- Mice.

scientific article published on June 2015

Contrast ultrasound imaging of the aorta alters vascular morphology and circulating von Willebrand factor in hypercholesterolemic rabbits

scientific article

Cross-imaging platform comparison of ultrasonic backscatter coefficient measurements of live rat tumors

scientific article

Cross-imaging system comparison of backscatter coefficient estimates from a tissue-mimicking material

scientific article

Decreased Nutrient Intake Is Associated With Premature Cervical Remodeling

scientific article

Defining optimal axial and lateral resolution for estimating scatterer properties from volumes using ultrasound backscatter

scientific article published in June 2004

Deletion of the K1L Gene Results in a Vaccinia Virus That Is Less Pathogenic Due to Muted Innate Immune Responses, yet Still Elicits Protective Immunity

scientific article published on 10 May 2017

Determination of postexcitation thresholds for single ultrasound contrast agent microbubbles using double passive cavitation detection

scientific article

Development of an ultrasonic method to detect cervical remodeling in vivo in full-term pregnant women.

scientific article

Dietary Tomato or Lycopene Do Not Reduce Castration-Resistant Prostate Cancer Progression in a Murine Model

scientific article published on 05 May 2020

Differentiation and characterization of rat mammary fibroadenomas and 4T1 mouse carcinomas using quantitative ultrasound imaging

scientific article published on June 2004

Effect of contrast agent on the incidence and magnitude of ultrasound-induced lung hemorrhage in rats

scientific article published in July 2004

Effect of pulse polarity and energy on ultrasound-induced lung hemorrhage in adult rats

scientific article published on 01 May 2003

Effects of Tomato and Soy Germ on Lipid Bioaccumulation and Atherosclerosis in ApoE-/- Mice.

scientific article

Estimating concentration of ultrasound contrast agents with backscatter coefficients: experimental and theoretical aspects.

scientific article

Estimation of the acoustic impedance of lung versus level of inflation for different species and ages of animals

scientific article

Estimation of total attenuation and scatterer size from backscattered ultrasound waveforms

scientific article published in March 2005

Evaluation of the spectral fit algorithm as functions of frequency range and deltakaeff

scientific article published in November 2005

Evaluation of the temporal stability of Definity using double passive cavitation detection

scientific article published on September 2013

Evaluation of unscanned-mode soft-tissue thermal index for rectangular sources and proposed new indices.

scientific article published in July 2004

Excess risk thresholds in ultrasound safety studies: statistical methods for data on occurrence and size of lesions.

scientific article

Experimental evaluation of indicators of nonlinearity for use in ultrasound transducer characterizations

scientific article published in November 2002

Extended three-dimensional impedance map methods for identifying ultrasonic scattering sites

scientific article

Frequency-dependent attenuation-compensation functions for ultrasonic signals backscattered from random media

scientific article published on 01 May 2002

Hemorrhage near fetal rat bone exposed to pulsed ultrasound

scientific article published in February 2007

Identifying ultrasonic scattering sites from three-dimensional impedance maps

scientific article published in January 2005

Impact of local attenuation approximations when estimating correlation length from backscattered ultrasound echoes

scientific article published in July 2006

Impedance measurements of ex vivo rat lung at different volumes of inflation

scientific article

Improved scatterer property estimates from ultrasound backscatter for small gate lengths using a gate-edge correction factor

scientific article published in November 2004

In vivo ultrasonic attenuation slope estimates for detecting cervical ripening in rats: Preliminary results

scientific article

Inadequate dietary magnesium intake increases atherosclerotic plaque development in rabbits

scientific article published on May 2009

Inter-platform reproducibility of ultrasonic attenuation and backscatter coefficients in assessing NAFLD

scientific article published on 19 February 2019

Inter-sonographer reproducibility of quantitative ultrasound outcomes and shear wave speed measured in the right lobe of the liver in adults with known or suspected non-alcoholic fatty liver disease

Interlaboratory comparison of backscatter coefficient estimates for tissue-mimicking phantoms

scientific article

Interlaboratory comparison of ultrasonic backscatter coefficient measurements from 2 to 9 MHz.

scientific article published in September 2005

Lesions of ultrasound-induced lung hemorrhage are not consistent with thermal injury

scientific article

Limitations on estimation of effective scatterer diameters

scientific article published in December 2017

Low fat but not soy protein isolate was an effective intervention to reduce nonalcoholic fatty liver disease progression in C57BL/6J mice: monitored by a novel quantitative ultrasound (QUS) method

scientific article published on 14 December 2018

Method for Estimating Total Attenuation from a Spatial Map of Attenuation Slope for Quantitative Ultrasound Imaging ⬇️

scientific article published on April 1, 2013

Method of improved scatterer size estimation and application to parametric imaging using ultrasound

scientific article published in December 2002

Noninvasive Diagnosis of Nonalcoholic Fatty Liver Disease and Quantification of Liver Fat with Radiofrequency Ultrasound Data Using One-dimensional Convolutional Neural Networks

scientific article published on 25 February 2020

Noninvasive Diagnosis of Nonalcoholic Fatty Liver Disease and Quantification of Liver Fat Using a New Quantitative Ultrasound Technique

scientific article

Optimization of a Low Magnesium, Cholesterol-Containing Diet for the Development of Atherosclerosis in Rabbits

scientific article published on February 2013

Parametric imaging of rat mammary tumors in vivo for the purposes of tissue characterization

scientific article published on 01 November 2002

Quantitative Ultrasound Comparison of MAT and 4T1 Mammary Tumors in Mice and Rats Across Multiple Imaging Systems

scientific article

Quantitative Ultrasound and the Pancreas: Demonstration of Early Detection Capability

scientific article published on 21 December 2018

Quantitative ultrasonic characterization of diffuse scatterers in the presence of structures that produce coherent echoes ⬇️

scientific article published on May 1, 2012

Quantitative ultrasound assessment of the rat cervix

scientific article

Reasons Why Pregnant Women Participate in Ultrasound Research Involving Transvaginal Scans

scientific article published on 19 February 2020

Repeatability and Reproducibility of a Clinically Based QUS Phantom Study and Methodologies

scientific article published on 9 July 2016

Repeatability and Reproducibility of the Ultrasonic Attenuation Coefficient and Backscatter Coefficient Measured in the Right Lobe of the Liver in Adults With Known or Suspected Nonalcoholic Fatty Liver Disease

scientific article

Scatterer size estimation in pulse-echo ultrasound using focused sources: calibration measurements and phantom experiments

scientific article published in July 2004

Scatterer size estimation in pulse-echo ultrasound using focused sources: theoretical approximations and simulation analysis

scientific article published in July 2004

Signal processing strategies that improve performance and understanding of the quantitative ultrasound SPECTRAL FIT algorithm

scientific article published in September 2005

Structure Function Estimated From Histological Tissue Sections

scientific article published on 25 March 2016

Structure function for high-concentration biophantoms of polydisperse scatterer sizes

scientific article

Superthreshold behavior and threshold estimation of ultrasound-induced lung hemorrhage in pigs: role of age dependency

scientific article

Superthreshold behavior of ultrasound-induced lung hemorrhage in adult rats: role of pulse repetition frequency and exposure duration revisited.

scientific article published in March 2005

Superthreshold behavior of ultrasound-induced lung hemorrhage in adult rats: role of pulse repetition frequency and pulse duration.

scientific article

Targeted Ultrasound-Assisted Cancer-Selective Chemical Labeling and Subsequent Cancer Imaging using Click Chemistry

scientific article published on 24 March 2016

Targeted Ultrasound‐Assisted Cancer‐Selective Chemical Labeling and Subsequent Cancer Imaging using Click Chemistry

scientific article published in 2016

Techniques and evaluation from a cross-platform imaging comparison of quantitative ultrasound parameters in an in vivo rodent fibroadenoma model

scientific article

The measurement of ultrasound backscattering from cell pellet biophantoms and tumors ex vivo

scientific article

The risk of exposure to diagnostic ultrasound in postnatal subjects: thermal effects

scientific article

Three-dimensional impedance map analysis of rabbit liver ⬇️

scientific article published on November 1, 2011

Threshold estimates and superthreshold behavior of ultrasound-induced lung hemorrhage in adult rats: role of pulse duration

scientific article published in November 2003

Threshold estimation and superthreshold behavior of ultrasound-induced lung hemorrhage in rats: role of age dependency.

scientific article

Threshold estimation of ultrasound-induced lung hemorrhage in adult rabbits and comparison of thresholds in mice, rats, rabbits and pigs

scientific article

Transthoracic cardiac ultrasonic stimulation induces a negative chronotropic effect.

scientific article

Ultrasonic attenuation and backscatter coefficient estimates of rodent-tumor-mimicking structures: comparison of results among clinical scanners

scientific article

Ultrasonic backscatter coefficient quantitative estimates from Chinese hamster ovary cell pellet biophantoms

scientific article

Ultrasonic backscatter coefficient quantitative estimates from high-concentration Chinese hamster ovary cell pellet biophantoms ⬇️

scientific article published on December 1, 2011

Ultrasonic backscatter coefficients for weakly scattering, agar spheres in agar phantoms.

scientific article

Ultrasonic contrast agent shell rupture detected by inertial cavitation and rebound signals

scientific article

Ultrasound Contrast Agents Affect the Angiogenic Response ⬇️

scientific article published on July 1, 2011

Ultrasound-induced lung hemorrhage: role of acoustic boundary conditions at the pleural surface

scientific article published in February 2002

Validated sandwich ELISA for the quantification of von Willebrand factor in rabbit plasma. ⬇️

scientific article published on 28 November 2010

Vascular lesions and s-thrombomodulin concentrations from auricular arteries of rabbits infused with microbubble contrast agent and exposed to pulsed ultrasound

scientific article

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