River Sonic Solutions

Expert Witnessing and Technical Consulting in imaging, signal processing and electronics

Experience

Expert Witness CV Technical Consulting Resumé

Papers

Invited Papers

cMUTs and Electronics for 2D and 3D Imaging: Monolithic Integration, In-Handle Chip Sets and System Implications Conformable transducers for large-volume, operator-independent imaging Neural networks for image analysis

Transcranial

A Double-Blind Pilot Study of Transcranial Ultrasound (TUS) as a Five-Day Intervention: TUS Mitigates Worry among Depressed Participants Transcranial Focused Ultrasound to the Right Prefrontal Cortex Improves Mood and Alters Functional Connectivity in Humans

Piezo-MEMS

Characterization of a 3D-MEMS Piezoelectric Transducer for Portable Imaging Systems

Beamforming

Sigma-Delta Dynamic Receive Beamforming Two Approaches to Electronically Scanned 3D Imaging Using cMUTs Elevation Beam Profile Control with Bias Polarity Patterns Applied to Microfabricated Ultrasound Transducers Windowing of Wideband Ultrasound Transducers Elevation Performance of 1.25D and 1.5D Transducer Arrays Beam profiles and images from two-dimensional arrays

Integration of transducers and front-end electronics

A Matrix Transducer Design with Improved Image Quality and Acquisition Rate Microfabricated Ultrasonic Transducers Monolithically Integrated with High Voltage Electronics

Miscellaneous

A 1.5D Transducer for Medical Ultrasound Comprehensive Imager Simulation for Improved Acoustic Power Control In-Vivo Fetal Ultrasound Exposimetry A Quantitative Acoustic Microscope with Multiple Detection Modes Wideband Acoustic Microscopy of Tissue The elastic microstructure of various tissues Adaptive filtering for reduction of speckle in ultrasonic pulse-echo images Frequency dependence of tissue attenuation measured by acoustic microscopy Application of neural networks to ultrasound tomography

Issued Patents

US11172978 Methods, devices and systems for inducing collagen regeneration US10067229` Receive-side beam forming for an ultrasonic image sensor EP3311752B1 Ultrasonic device and operation method therefor US10,022,751 Piezoelectric transducer device for configuring a sequence of operational modes US9,274,088 Redistribution layer in an ultrasound diagnostic imaging transducer US8,795,182 Switch for aperture control in medical diagnostic ultrasound imaging US8,647,279 Volume mechanical transducer for medical diagnostic ultrasound US8,641,628 Aperture synthesis using cMUTs US8,465,431 Multi-dimensional CMUT array with integrated beamformation US8,277,380 Piezoelectric and CMUT layered ultrasound transducer array US7,963,919 Ultrasound imaging transducer array for synthetic aperture US7,824,338 Apparatus for two-dimensional transducers used in three-dimensional ultrasonic imaging US7,780,597 Method and apparatus for improving the performance of capacitive acoustic transducers using bias polarity control and multiple firings US7,719,166 Apparatus for two-dimensional transducer used in three-dimensional ultrasonic imaging US7,679,263 Apparatus for two-dimensional transducers used in three-dimensional ultrasonic imaging US7,670,290 Electric circuit for tuning a capacitive electrostatic transducer US7,618,373 Microfabricated ultrasonic transducer array for 3-D imaging and method of operating the same US7,508,113 Apparatus for two-dimensional transducers used in three-dimensional ultrasonic imaging US7,087,023 Microfabricated ultrasonic transducers with bias polarity beam profile control and method of operating the same US7,006,955 System and method for statistical design of ultrasound probe and imaging system US6,931,270 Method and system for conducting medical imaging transactions US6,245,016 Ultrasound imaging system having post-beamformer signal processing using deconvolution algorithm US5,817,023 Ultrasound imaging system with dynamic window function generator US5,769,790 Focused ultrasound surgery system guided by ultrasound imaging US5,445,156 Method for adaptively filtering doppler signals using a complex time domain filter US5,349,524 Color flow imaging system utilizing a time domain adaptive wall filter US5,345,939 Ultrasound imaging system with dynamic window function