Ultrasonic phased array imaging system with high speed adaptive

Surgery – Truss – Pad

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12866007, 36441325, A61B 800

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active

053319648

ABSTRACT:
Disclosed is an ultrasonic phased array imaging system which includes a normal mode and an adaptive mode of operation. The adaptive mode adjusts the delay associated with each element in the transducer such that the average image brightness of the region of interest is maximized. Also disclosed is a method of correcting for phase aberration using selected elements of an ultrasonic array specific to each element of the array to correct each element of the array. It is further disclosed that the use of corrected elements to correct subsequent elements in the array results in more accurate phase aberration correction. In a preferred embodiment, the determination of the maximum average image brightness is performed more accurately through the use of selectable transducer array elements and previously corrected data during adaptive processing.

REFERENCES:
patent: 4140022 (1979-02-01), Maslak
patent: 4149420 (1979-04-01), Hutchison et al.
patent: 4279157 (1981-07-01), Schomberg et al.
patent: 4566459 (1986-01-01), Umemura et al.
patent: 4607218 (1986-08-01), Stosel
patent: 4633883 (1987-01-01), Matsui
patent: 4700573 (1987-10-01), Savord
patent: 4817614 (1989-04-01), Hassler et al.
patent: 4852577 (1989-08-01), Smith et al.
patent: 4989143 (1991-01-01), O'Donnell et al.
patent: 5184623 (1993-02-01), Mallart
patent: 5203336 (1993-04-01), Iida et al.
D. J. Phillips et al.; Sampled Aperture Techniques Applied to B-Mode Echoencephalography, Acoustical Holography vol. 6, 103-120 (1975).
J. Jellins et al.; Velocity Compensation in Water-Coupled Breast Echography, Ultrasonics 11, 223-226 (1973).
S. W. Smith et al.; Some Advances in Acoustic Imaging Through Skull, Ultrasonic Tissue Characterization II, 209-218 (1978).
S. M. Miller-Jones, Automated Arrival Time Correction for Ultrasonic Cephalic Imaging, Ph.D. Thesis Duke University, Durham N.C. (1980).
M. Hirama et al., Adaptive Ultrasonic Array Imaging System Through an Inhomogeneous Layer, J. Acoust. Soc. of Amer. 71(1), 100-109 (1982).
M. Hirama et al. Imaging Through an Inhomogeneous Layer by Least-Mean-Square Error Fitting, J. Acoust. Soc. Amer. 75(4), 1142-1147 (1984).
A. Muller, Real-Time Correction of Atmospherically Degraded Telescope Images Through Image Sharpening, J. Opt. Soc. Amer. vol. 64 1200-1210 (1974).
E. H. Attia, Phase Synchronizing Large Antenna Array Using the Spatial Correlation Properties of Radar Clutter, Ph.D. Dissertation, University of Pennsylvania (1984).
B. D. Steinberg et al., Self Calibration of Phased Arrays Using the Muller Buffington Theorem and Transmitter Location Diversity, Valley Forge Research Center Quarterly Report #50, 31-45 (1986).
B. D. Steinberg, Distortion Correction by Image Feedback Control, Valley Forge Research Center Quarterly Report #49, 54-58 (1986).
G. E. Trahey, et al.; Phase Aberration Correction in Medical Ultrasound Using Speckle Brightness as a Quality Factor, The Journal of the Acousticsl Society of America, vol. 85 1819-1833, (1989).
R. F. Wagner, Statistics of Speckle in Ultrasound B-Scans, IEEE Transactions on Sonics and Ultrasonics, vol. 30, No. 30 156-163, (1983).
O. Bonnefous, et al.; A New Velocity Estimator for Color Flow Mapping, Ultrasonics Symposium, 855-859 (1986).
C. H. Burckhardt, Speckle in Ultrasound B-Mode Scans, IEEE Transactions on Sonics and Ultrasonics, vol. SU-25, No. 1 1-6 (1978).
G. E. Trahey, et al.; An Evaluation of Transduer Design and Algorithm Performance for Two Dimensional Phase Aberration Correction, Ultrasonics Symposium, 1181-1187 (1991).
L. M. Bohs, et al.; A Novel Method for Angle Independent Ultrasonic Imaging of Blood Flow and Tissue Motion, IEEE Transactions on Biomedical Engineering, vol. 38, No. 3 280-286 (1991).
D. J. Phillips, et al.; A Phase Compensation Technique for B-Mode Echoencephalography, Ultrasound in Medicine, vol. 1 395-404 (1975).
S. Kontis, Algorithms for Fast Computation of the Intensity Weighted Mean Doppler Frequency, Medical & Biomedical Engineering & Computing, 25 75-76 (1987).
S. W. Flax, et al.; Statistical Evaluation of the Doppler Ultrasonic Blood Flowmeter, Biomedical Science Instrumentation, vol. 7 201-222 (1970).
C. Kasai, et al.; Real-Time Two-Dimensional Blood Flow Imaging Using an Autocorrelation Technique, Transactions on Sonics and Ultrasonics, vol. SU-32, No. 3 458-463 (1985).
O. Von Ramm, et al.; Beam Steering with Linear Arrays, Transactions on Biomedical Engineering, vol. BME-30, No. 8 438-452 (1983).
R. Mallart, et al.; The Van Cittert-Zernike Theorem in Pulsed Ultrasound. Implications for Ultrasonic Imaging, Ultrasonics Symposium, 1603-1607 (1990).
D. Rachlin: Direct Estimation of Aberrating Delays in Pulise-Echo Imaging Systems, Acoustical Society of America, 88 191-198 (1990).
G. E. Trahey, et al.; Properties of Acousticsl Speckle in the Presence of Phase Aberration Part I: First Order Statistics, Ultrasonic Imaging, 10 12-28 (1988).
S. W. Flax, et al.; Phase-Aberration Correction Using Signals from Point Reflectors and Diffuse Scatterers: Basic Principles, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 35 No. 6 758-767 (1988).
M. O'Donnell, et al.; Real-Time Phase Aberration Correction System for Medical Ultrasound Imaging, Annual International Conference of the IEEE Engineering in Medicine and Biology Society, vol. 12, No. 1 0278-0280 (1990).
M. O'Donnell, et al.; Correlation-Based Aberration Correction in the Presence of Inoperable Elements, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 39 No. 6 700-707 (1992).
M. Fink, et al.; Self Focusing in Inhomogeneous Media with "Time Reversal" Acoustic Mirrors, Ultrasonics Symposium, 681-686 (1989).
M. O'Donnell, et al.; Measurement of Arterial Wall Motion Using Fourier Based Speckle Tracking Algorithms, Ultrasonics Symposium, 1101-1104 (1991).
H. G. Pavy, Jr., et al.; An Improved Real Time Volumetric Ultrasonic Imaging System, Medical Imaging V: Image Physics, vol. 1443 54-61 (1991).
G. E. Trahey, et al.; The Impact of Acoustic Velocity Variations on Target Detectability in Ultrasonic Images of the Breast, Investigative Radiology, vol. 26 No. 9 782-791 (1991).

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