Abstract:
It has been demonstrated that short-lag spatial coherence (SLSC) ultrasound imaging can provide improved speckle SNR and lesion CNR compared with conventional Bmode image...Show MoreMetadata
Abstract:
It has been demonstrated that short-lag spatial coherence (SLSC) ultrasound imaging can provide improved speckle SNR and lesion CNR compared with conventional Bmode images, especially in the presence of noise and clutter. Application of the van Cittert-Zernike theorem predicts that coherence among the ultrasound echoes received across an array is reduced significantly away from the transmit focal depth, leading to a limited axial depth of field in SLSC images. Transmit focus throughout the field of view can be achieved using synthetic aperture methods to combine multiple transmit events into a single final image. A synthetic aperture can be formed with either focused or diverging transmit beams. We explore the application of these methods to form synthetically focused channel data to create SLSC images with an extended axial depth of field. An analytical expression of SLSC image brightness through depth is derived for the dynamic receive focus case. Experimental results in a phantom and in vivo are presented and compared with dynamic receive focused SLSC images, demonstrating improved SNR and CNR away from the transmit focus and an axial depth of field four to five times longer.
Published in: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control ( Volume: 60, Issue: 9, September 2013)
Biomedical Engineering Department, Duke University, Durham, NC, USA
Nick Bottenus received the B.S.E. degree in biomedical engineering and electrical and computer engineering from Duke University, Durham, NC, in 2011. He is currently a Ph.D. student in biomedical engineering at Duke University and is a member of the Society of Duke Fellows. His current research interests include coherence-based imaging and beamforming methods.
Nick Bottenus received the B.S.E. degree in biomedical engineering and electrical and computer engineering from Duke University, Durham, NC, in 2011. He is currently a Ph.D. student in biomedical engineering at Duke University and is a member of the Society of Duke Fellows. His current research interests include coherence-based imaging and beamforming methods.View more
Biomedical Engineering Department, Duke University, Durham, NC, USA
Brett C. Byram received the B.S. degree in biomedical engineering and math from Vanderbilt University, Nashville, TN, in 2004. He received the Ph.D. degree in biomedical engineering in 2011 from Duke University, Durham, NC. Between 2006 and 2007, he spent 10 months working with Jørgen Jensen in the Center for Fast Ultrasound in Lyngby, Denmark. He is currently an assistant research professor in the biomedical engineering ...Show More
Brett C. Byram received the B.S. degree in biomedical engineering and math from Vanderbilt University, Nashville, TN, in 2004. He received the Ph.D. degree in biomedical engineering in 2011 from Duke University, Durham, NC. Between 2006 and 2007, he spent 10 months working with Jørgen Jensen in the Center for Fast Ultrasound in Lyngby, Denmark. He is currently an assistant research professor in the biomedical engineering ...View more
Biomedical Engineering Department, Duke University, Durham, NC, USA
Jeremy J. Dahl (M'11) was born in Ontonagon, MI, in 1976. He received the B.S. degree in electrical engineering from the University of Cincinnati, Cincinnati, OH in 1999. He received the Ph.D. degree in biomedical engineering from Duke University in 2004. He is currently an Assistant Research Professor with the Department of Biomedical Engineering at Duke University. His research interests include adaptive beamforming, no...Show More
Jeremy J. Dahl (M'11) was born in Ontonagon, MI, in 1976. He received the B.S. degree in electrical engineering from the University of Cincinnati, Cincinnati, OH in 1999. He received the Ph.D. degree in biomedical engineering from Duke University in 2004. He is currently an Assistant Research Professor with the Department of Biomedical Engineering at Duke University. His research interests include adaptive beamforming, no...View more
Biomedical Engineering Department, Duke University, Durham, NC, USA
Gregg E. Trahey (S'83–M'85) received the B.G.S. and M.S. degrees from the University of Michigan, Ann Arbor, MI, in 1975 and 1979, respectively. He received the Ph.D. degree in biomedical engineering in 1985 from Duke University. He served in the Peace Corps from 1975 to 1978 and was a project engineer at the Emergency Care Research Institute in Plymouth Meeting, PA, from 1980 to 1982. He currently is a Professor with the...Show More
Gregg E. Trahey (S'83–M'85) received the B.G.S. and M.S. degrees from the University of Michigan, Ann Arbor, MI, in 1975 and 1979, respectively. He received the Ph.D. degree in biomedical engineering in 1985 from Duke University. He served in the Peace Corps from 1975 to 1978 and was a project engineer at the Emergency Care Research Institute in Plymouth Meeting, PA, from 1980 to 1982. He currently is a Professor with the...View more
Contents Biomedical Engineering Department, Duke University, Durham, NC, USA
Nick Bottenus received the B.S.E. degree in biomedical engineering and electrical and computer engineering from Duke University, Durham, NC, in 2011. He is currently a Ph.D. student in biomedical engineering at Duke University and is a member of the Society of Duke Fellows. His current research interests include coherence-based imaging and beamforming methods.
Nick Bottenus received the B.S.E. degree in biomedical engineering and electrical and computer engineering from Duke University, Durham, NC, in 2011. He is currently a Ph.D. student in biomedical engineering at Duke University and is a member of the Society of Duke Fellows. His current research interests include coherence-based imaging and beamforming methods.View more
Biomedical Engineering Department, Duke University, Durham, NC, USA
Brett C. Byram received the B.S. degree in biomedical engineering and math from Vanderbilt University, Nashville, TN, in 2004. He received the Ph.D. degree in biomedical engineering in 2011 from Duke University, Durham, NC. Between 2006 and 2007, he spent 10 months working with Jørgen Jensen in the Center for Fast Ultrasound in Lyngby, Denmark. He is currently an assistant research professor in the biomedical engineering department at Duke University. His ultrasound research interests include beamforming, motion estimation, and other related signal processing tasks.
Brett C. Byram received the B.S. degree in biomedical engineering and math from Vanderbilt University, Nashville, TN, in 2004. He received the Ph.D. degree in biomedical engineering in 2011 from Duke University, Durham, NC. Between 2006 and 2007, he spent 10 months working with Jørgen Jensen in the Center for Fast Ultrasound in Lyngby, Denmark. He is currently an assistant research professor in the biomedical engineering department at Duke University. His ultrasound research interests include beamforming, motion estimation, and other related signal processing tasks.View more
Biomedical Engineering Department, Duke University, Durham, NC, USA
Jeremy J. Dahl (M'11) was born in Ontonagon, MI, in 1976. He received the B.S. degree in electrical engineering from the University of Cincinnati, Cincinnati, OH in 1999. He received the Ph.D. degree in biomedical engineering from Duke University in 2004. He is currently an Assistant Research Professor with the Department of Biomedical Engineering at Duke University. His research interests include adaptive beamforming, noise in ultrasonic imaging, and radiation force imaging methods.
Jeremy J. Dahl (M'11) was born in Ontonagon, MI, in 1976. He received the B.S. degree in electrical engineering from the University of Cincinnati, Cincinnati, OH in 1999. He received the Ph.D. degree in biomedical engineering from Duke University in 2004. He is currently an Assistant Research Professor with the Department of Biomedical Engineering at Duke University. His research interests include adaptive beamforming, noise in ultrasonic imaging, and radiation force imaging methods.View more
Biomedical Engineering Department, Duke University, Durham, NC, USA
Gregg E. Trahey (S'83–M'85) received the B.G.S. and M.S. degrees from the University of Michigan, Ann Arbor, MI, in 1975 and 1979, respectively. He received the Ph.D. degree in biomedical engineering in 1985 from Duke University. He served in the Peace Corps from 1975 to 1978 and was a project engineer at the Emergency Care Research Institute in Plymouth Meeting, PA, from 1980 to 1982. He currently is a Professor with the Department of Biomedical Engineering at Duke University and holds a secondary appointment with the Department of Radiology at the Duke University Medical Center. He is conducting research in adaptive phase correction, radiation force imaging methods, and 2-D flow imaging in medical ultrasound.
Gregg E. Trahey (S'83–M'85) received the B.G.S. and M.S. degrees from the University of Michigan, Ann Arbor, MI, in 1975 and 1979, respectively. He received the Ph.D. degree in biomedical engineering in 1985 from Duke University. He served in the Peace Corps from 1975 to 1978 and was a project engineer at the Emergency Care Research Institute in Plymouth Meeting, PA, from 1980 to 1982. He currently is a Professor with the Department of Biomedical Engineering at Duke University and holds a secondary appointment with the Department of Radiology at the Duke University Medical Center. He is conducting research in adaptive phase correction, radiation force imaging methods, and 2-D flow imaging in medical ultrasound.View more
