OSU BME Seminar Series: Dr. Ronald Silverman, PhD, Columbia University Irving Medical Center

Ronald Silverman, PhD
Professor
Department of Ophthalmology
Columbia University Irving Medical Center

Abstract:

"Ultrafast Plane-Wave Ultrasound Imaging: Technology and Ophthalmic Applications"

Ophthalmic ultrasound is typically performed with dedicated systems based on mechanically scanned, single-element transducers. Such systems produce about 10 scans/sec and cannot image blood flow.  Linear array systems with ophthalmic setting complying with FDA acoustic intensity guidelines for the eye have only recently becoming available. Such systems are about an order of magnitude faster than mechanically scanned probes. They can provide duplex images depicting blood-flow, but not quantitative measurement of flow velocities. Plane wave imaging utilizing linear arrays can provide thousands of 2D images/sec and, because unfocused transmitted acoustic intensity is lower than conventional linear array systems where a focused beam is scanned, can offer both imaging and measurement of flow velocity.

Bio: 

Ronald Silverman, PhD is a Professor of Ophthalmic Science at the Columbia University Irving Medical Center in New York City. He received an MS in Bioengineering (1979) and PhD in Computer Science (1990) from Polytechnic University (now a part of NYU). His doctoral research involved implementation of neural networks for processing ultrasound images and classification, one of the first biomedical applications in the field. He joined the Dept. of Ophthalmology at Weill Cornell in 1982 and moved to Columbia in 2010. His research focuses on ultrasound applications in ophthalmology, especially ultrafast plane-wave methods for imaging and measurement of blood flow.  He performs clinical ultrasound exams and is involved in several clinical and pre-clinical studies of eye disease.

Dr. Silverman is a Fellow of the American Institute of Ultrasound in Medicine, the Association for Research in Vision and Ophthalmology, and the American Institute for Medical and Biological Engineers.  He is a Senior member of the IEEE.