1992 - Fellow of the Indian National Academy of Engineering (INAE)
1989 - IEEE Fellow For technical and administrative contributions to ultrasonic bio-engineering.
His scientific interests lie mostly in Ultrasound, Acoustics, Ultrasonic sensor, Optics and Attenuation. His Ultrasound research incorporates themes from Cavitation, Lung, Biomedical engineering and Pathology. His Acoustics research incorporates elements of Audio signal processing, Signal and Frequency domain.
His Ultrasonic sensor research is multidisciplinary, relying on both Flow, Transducer, Volumetric flow rate and Attenuation coefficient. The various areas that William D. O'Brien examines in his Optics study include Range, Spectral density, Flow measurement and Medical ultrasound. William D. O'Brien has researched Attenuation in several fields, including Ex vivo, Absorption, Mineralogy, Current and Speed of sound.
William D. O'Brien mostly deals with Ultrasound, Acoustics, Optics, Ultrasonic sensor and Biomedical engineering. William D. O'Brien has included themes like Lesion, Pathology, LUNG HEMORRHAGE, Lung and Nuclear medicine in his Ultrasound study. He interconnects Amplitude, Imaging phantom and Signal in the investigation of issues within Acoustics.
His studies in Optics integrate themes in fields like Transducer and Spectral density. He works mostly in the field of Ultrasonic sensor, limiting it down to concerns involving Attenuation coefficient and, occasionally, Laser. William D. O'Brien merges Biomedical engineering with Quantitative ultrasound in his study.
Ultrasound, Quantitative ultrasound, Nonalcoholic fatty liver disease, Internal medicine and Biomedical engineering are his primary areas of study. His specific area of interest is Ultrasound, where William D. O'Brien studies Microbubbles. His study in Nonalcoholic fatty liver disease is interdisciplinary in nature, drawing from both Chronic liver disease, Steatosis and Nuclear medicine.
His work deals with themes such as Backscatter and Ultrasonic attenuation, which intersect with Nuclear medicine. His Internal medicine study combines topics from a wide range of disciplines, such as Gastroenterology, Endocrinology and Cardiology. His research integrates issues of Transmission loss and Gestation in his study of Attenuation.
William D. O'Brien mainly focuses on Ultrasound, Nonalcoholic fatty liver disease, Steatosis, Internal medicine and Radiology. His work on Sonographer as part of general Ultrasound study is frequently linked to Intraclass correlation, bridging the gap between disciplines. His work carried out in the field of Steatosis brings together such families of science as Proton density fat fraction, Liver disease and Fatty liver.
His Internal medicine research integrates issues from Gastroenterology, Endocrinology, Pressure amplitude and Cardiology. His Radiology study combines topics in areas such as Adverse effect, Atheroma and Von Willebrand factor. His Ultrasonography research includes themes of Backscatter coefficient and Biomedical engineering.
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Modified assay for determination of hydroxyproline in a tissue hydrolyzate.
C. A. Edwards;William D. O'Brien.
Clinica Chimica Acta (1980)
William D. O'Brien.
Progress in Biophysics & Molecular Biology (2007)
Current time-domain methods for assessing tissue motion by analysis from reflected ultrasound echoes-a review
I.A. Hein;W.D. O'Brien.
IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control (1993)
Quantitative assessment of the germicidal efficacy of ultrasonic energy.
G Scherba;R M Weigel;W D O'Brien.
Applied and Environmental Microbiology (1991)
Synthetic aperture techniques with a virtual source element
C.H. Frazier;W.D. O'Brien.
IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control (1998)
Young's modulus measurements of soft tissues with application to elasticity imaging
E.J. Chen;J. Novakofski;W.K. Jenkins;W.D. O'Brien.
IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control (1996)
Flow velocity profile via time-domain correlation: error analysis and computer simulation
S.G. Foster;P.M. Embree;W.D. O'Brien.
IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control (1990)
Blind estimation of reverberation time.
Rama Ratnam;Douglas L. Jones;Bruce C. Wheeler;William D. O’Brien.
Journal of the Acoustical Society of America (2003)
Intrabody communication with ultrasound
William D. O'brien;Albert S. Feng;Bruce C. Wheeler;Charissa R. Lansing.
Journal of the Acoustical Society of America (2004)
Differentiation and characterization of rat mammary fibroadenomas and 4T1 mouse carcinomas using quantitative ultrasound imaging
M.L. Oelze;W.D. O'Brien;J.P. Blue;J.F. Zachary.
IEEE Transactions on Medical Imaging (2004)
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