Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Brent S. Robinson"'
Autor:
Yue Li, Brent S. Robinson
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 55:588-601
Common-midpoint signals in the near-field signal-redundancy (NFSR) algorithm for one-dimensional arrays are acquired using three consecutive transducer elements. An all-row-plus-two-column algorithm has been proposed to implement the one-dimensional
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77cda45dd888fddb94bd159690edb870
https://doi.org/10.1109/tuffc.2008.684
https://doi.org/10.1109/tuffc.2008.684
Autor:
Mark R. Holland, Matthew Rielly, James G. Miller, R.J. Fedewa, James Jago, G.C. Ng, Kirk D. Wallace, Brent S. Robinson
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 51:576-588
To be successful, correlation-based, phase-aberration correction requires a high correlation among backscattered signals. For harmonic imaging, the spatial coherence of backscatter for the second harmonic component is different than the spatial coher
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa48a74b36bd32ed66a730bf4b7caef8
https://doi.org/10.1109/tuffc.2004.1320830
https://doi.org/10.1109/tuffc.2004.1320830
Autor:
Yue Li, Brent S. Robinson
Publikováno v:
The Journal of the Acoustical Society of America. 132(2)
The near field signal redundancy algorithm for phase-aberration correction is sensitive to tissue motion because several separated transmissions are usually needed to acquire a set of common-midpoint signals. If tissues are moving significantly due t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65d051a3932b19b4a86bd8ffd0e7f9fa
https://pubmed.ncbi.nlm.nih.gov/22894210
https://pubmed.ncbi.nlm.nih.gov/22894210
Autor:
Russell J. Fedewa, Mark R. Holland, James G. Miller, Kirk D. Wallace, Brent S. Robinson, Christopher W. Lloyd
Publikováno v:
IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 53(7)
Techniques based on the nonlinearly generated second harmonic signal (tissue harmonic imaging) have rapidly supplanted linear (fundamental) imaging methods as the standard in two-dimensional echocardiography. Enhancements to the compactness of the no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fc178b33c7691dd8511219979735a27
https://pubmed.ncbi.nlm.nih.gov/16889333
https://pubmed.ncbi.nlm.nih.gov/16889333
Autor:
James Jago, Kirk D. Wallace, Matthew Rielly, Gary C. Ng, James G. Miller, Mark R. Holland, Brent S. Robinson, Russell J. Fedewa
Publikováno v:
The Journal of the Acoustical Society of America. 117(4 Pt 1)
The concept of an effective apodization was introduced to describe the field pattern for the nonlinearly generated second harmonic (2f) within the focal zone using a linear propagation model. Our objective in this study was to investigate the validit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4cd97c24fba47cd7acff115320d613a
https://pubmed.ncbi.nlm.nih.gov/15898631
https://pubmed.ncbi.nlm.nih.gov/15898631
Publikováno v:
IEEE Ultrasonics Symposium, 2004.
An ultrasonic wavefront can suffer significant aberration as it passes through the abdominal or chest wall. The present work experimentally measures the impact of phase and amplitude aberrations resulting from an inhomogeneous tissue path on: the fun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::493ef262845982133ba86eb88ce82f87
https://doi.org/10.1109/ultsym.2004.1417872
https://doi.org/10.1109/ultsym.2004.1417872
Autor:
Russell J, Fedewa, Kirk D, Wallace, Mark R, Holland, James R, Jago, Gary C, Ng, Matthew R, Rielly, Brent S, Robinson, James G, Miller
Publikováno v:
IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 51(5)
To be successful, correlation-based, phase-aberration correction requires a high correlation among backscattered signals. For harmonic imaging, the spatial coherence of backscatter for the second harmonic component is different than the spatial coher
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::b282b6b777f9b2970c04ae3e017ea513
https://pubmed.ncbi.nlm.nih.gov/15217235
https://pubmed.ncbi.nlm.nih.gov/15217235
Autor:
Matthew Rielly, James G. Miller, Kirk D. Wallace, Mark R. Holland, James Jago, R.J. Fedewa, G.C. Ng, Brent S. Robinson
Publikováno v:
2002 IEEE Ultrasonics Symposium, 2002. Proceedings..
The present work measures the effective apodizations for the fundamental and second harmonic and uses the Van Cittert-Zernike theorem to predict the spatial coherence of the second harmonic portion of backscatter. Two-dimensional pseudo-array scans o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84f85ead95325b02da226f3025120ad1
https://doi.org/10.1109/ultsym.2002.1192615
https://doi.org/10.1109/ultsym.2002.1192615
Autor:
James G. Miller, Brent S. Robinson, G.C. Ng, James Jago, Matthew Rielly, R.J. Fedewa, Mark R. Holland, Kirk D. Wallace
Publikováno v:
IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 50(8)
Correlation-based approaches to phase aberration correction rely on the spatial coherence of backscattered signals. The spatial coherence of backscatter from speckle-producing targets is predicted by the auto correlation of the transmit apodization (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6971b8ec3af75476f78f76d068f9c63
https://pubmed.ncbi.nlm.nih.gov/12952092
https://pubmed.ncbi.nlm.nih.gov/12952092
Autor:
Matthew Rielly, Brent S. Robinson, James G. Miller, R.J. Fedewa, Mark R. Holland, G.C. Ng, K.D. Wallace, James Jago
Publikováno v:
2001 IEEE Ultrasonics Symposium. Proceedings. An International Symposium (Cat. No.01CH37263).
Correlation-based approaches to phase aberration correction rely on the spatial coherence of backscattered signals. The spatial coherence of backscatter was measured using a clinical linear array with a modified clinical imaging system (ATL HDI 5000)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96cca3a009ab0d49802d10b8d9c28395
https://doi.org/10.1109/ultsym.2001.992000
https://doi.org/10.1109/ultsym.2001.992000