Method and apparatus for coherent image formation

Surgery – Truss – Pad

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

342 81, 367124, A61B 800

Patent

active

056673736

ABSTRACT:
A method and apparatus are provided for imaging an object using a transducer array for transmitting one or more beams that are steered and/or translated to transmit scan lines for multiple excitation events so as to scan a field of view of the object, for sensing received signals reflected from the object after each excitation event on one or more receive beams on receive scan lines, and for transducing those sensed received signals into corresponding electrical signals. The method and apparatus is additionally for acquiring and storing coherent samples retaining both phase and amplitude information of those electrical signals obtained on the receive scan lines throughout at least a portion of the field of view, and for combining stored coherent samples associated with distinct receive beams to synthesize new coherent image samples aligned on synthetic scan lines which are distinct from any one of (1) receive scan lines on which a signal was sensed, (2) transmit scan lines on which a signal was directed, or (3) transmit scan lines and receive scan lines. The method and apparatus is further for detecting the synthesized coherent image samples and displaying or recording the resulting image field.

REFERENCES:
patent: 3917380 (1975-11-01), Kato et al.
patent: 4070643 (1978-01-01), Green
patent: 4626907 (1986-12-01), Schedewie
patent: 4989143 (1991-01-01), O'Donnell et al.
patent: 5090795 (1992-02-01), O'Meara et al.
patent: 5334980 (1994-08-01), Decker
patent: 5462057 (1995-10-01), Hunt et al.
patent: 5544128 (1996-08-01), Kim et al.
Casini, et al., "New Envelope Detectors for Biomedical Ultrasound Signals Based on Discrete Coefficient Filters", Digital Signal Processing--84, 1984, pp. 877-881.
Rubin, et al., "Phase Cancellation: A Cause of Acoustical Shadowing at the Edges of Curved Surfaces in B-Mode Ultrasound Images", Ultrasound in Med. & Biol., vol. 17, No. 1, 1991, pp. 85-95.
Lamberti et al., "Spurious Echo Generation in Pulse Piezoelectric Transducer For Acoustical Imaging and Its Reduction", Acoustical Imaging, vol. 19, 1992, pp. 219-223.
Mallart et al., "Sound Speed Fluctuations In Medical Ultrasound Imaging Comparison Between Different Correction Algorithms", Acoustical Imaging, vol. 19, 1992, pp. 213-218.
Rahnavard et al., "Phase and Amplitude Reconstruction of an Acoustic Source from the Study of Its Diffraction Pattern", Acoustical Imaging, vol. 19, 1992, pp. 155-159.
Miyashita, Toyokatsu, "Superresolved Image Restoration of Holographic Images by L1-Norm Minimization With Clutter Rejection", Acoustical Imaging, vol. 19, 1992, pp. 77-82.
Timann et al., "Acoustic Self-Imaging in Resiliently Lined Waveguides", Acoustical Imaging, vol. 19, 1992, pp. 149-154.
Kahrs Hansen, Rolf, "Acoustical Imaging Using Spectral Decomposition of the Aperture Field", Acoustical Imaging, vol. 19, 1992, pp. 103-107.
Jones, Hugh W., "Superresolution in Ultrasonic Imaging", Acoustical Imaging, vol. 19, 1992, pp. 71-76.
Ohno, M., "Acoustic Phase Conjugation Using Nonlinear Electroacoustic Interaction and Its Application To Scanning Acoustic Imaging Systems", Acoustical Imaging, vol. 18, 1991, pp. 65-71.
Hoddinott et al., "Temporal Phase as an Imaging and Correction Tool", Acoustical Imaging, 1988, pp. 303-312.
Nikoonahad, M., "New Techniques in Differential Phase Contrast Scanning Acoustic Microscopy", Acoustic Imaging, 1987, pp. 501-509.
Fink et al., "The Random Phase Transducer: A New Tool for Scattering Medium", Acoustical Imaging, 1987, pp. 445-456.
Johnston, Patrick H., "Sparsely-Sampled Phase-Insensitive Two-Dimensional Arrays: Spatial Interpolation and Signal-Dependent Aperture", Acoustical Imaging, 1987, pp. 19-28.
"Ultrasonic Spectral Analysis for Nondestructive Evaluation", Applications of Ultrasonic Spectroscopy to Materials Evaluation, 1981, pp. 106, 109.
Diagnostic Imaging, May/Jun. 1988.
Robinson, David E., "Digital Reconstruction and Display of Compound Scan Ultrasound Images", IEEE Transactions on Sonics and Ultrasonics, vol. SU-31, No. 4, Jul. 1984, pp. 396-406.
Wenmin et al., "The Intelligent Digital Scanning In Phased Array Ultrasonic Tomography", The Journal of the Acoustical Society of America, Supplement 1, vol. 84, Fall 1988, pp. 458-459.
Jiangguo, et al., "A New Digital Processor for Phased-Array Ultrasound System", The Journal of the Acoustical Society of America, Supplement 1, vol. 84, Fall 1988, pp. 456-457.
Umemura et al., "The Sector-Vortex Phased Array: Acoustic Field Synthesis for Hyperthermia", IEEE Transactions in Ultrasonics, Ferroelectrics, and Frequency Control, vol. 36, No. 2, Mar. 1989, pp. 249-257.
Tsukahara et al., "Angular Spectral Approach to Reflection of Focused Beams with Oblique Incidence in Spherical-Planar-Pair Lenses", IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 38, No. 5, Sep. 1991, pp. 468-480.
Einighammer, Hans J., "Real-Time Imaging With Area-Array Transducers Using Analog Wave-Field Reproduction and an Application in Transcranial Sonography", Acoustical Imaging, vol. 19, 1992, pp. 421-426.
Weisser et al., "Attenuation Measurement With Transmitted and Reflected Ultrasound--A Comparison of Different Methods", Acoustical Imaging, vol. 19, 1992, pp. 409-414.
Karaman et al., "Optimization of Dynamic Receive Focusing in Ultrasound Imaging", Acoustical Imaging, vol. 19, 1992, pp. 225-229.
Berkhout. A. J., "Ultrasonic Medical Imaging, Current Techniques and Future Developments", Medical Progress Through Technology 11, 1986, pp. 197-207.
Karaman et al., "VLSI Circuits for Adaptive Digital Beamforming in Ultrasound Imaging", IEEE Transactions on Medical Imaging, vol. 12, No. 4, Dec. 1993, pp. 711-720.
Richard et al., "Real-Time Ultrasonic Scan Conversion Via Linear Interpolation of Oversampled Vectors", Ultrasonic Imaging 16, 1994, pp. 109-123.
Kerr, et al., "Speckle Reduction In Pulse Echo Imaging Using Phase Insensitive and Phase Sensitive Signal Processing Techniques", Ultrasonic Imaging 8, 1986, pp. 11-28.
Ardouin, et al., "Modelling and Restoration of Ultrasonic Phased-Array B-Scan Images", Ultrasonic Imaging 7, 1985, pp. 321-344.
Klingenbeck, et al., "Medical Imaging Techniques", ISPRS Journal of Photogrammetry and Remote Sensing, vol. 45, 1990, pp. 203-226.
Smith, et al., "High-Speed Ultrasound Volumetric Imaging System--Part I: Transducer Design and Beam Steering", IEEE Transactions On Ultrasonics, Ferroelectrics, and Frequency Control, vol. 38, No. 2, Mar. 1991, pp. 100-108.
von Ramm, et al., "High-Speed Ultrasound Volumetric Imaging System--Part II: Parallel Processing and Imaging Display", IEEE Transactions On Ultrasonics, Ferroelectrics, and Frequency Control, vol. 38, No. 2, Mar. 1991, pp. 109-115.
Berkhoff, et al., "Fast Scan Conversion Algorithms For Displaying Ultrasound Sector Images", Ultrasonic Imaging 16, 1994, pp. 87-108.
Pai-Chai Li, et al., "Blocked Element Compensation in Phased Array Imaging", IEEE Transactions On Ultrasonics, Ferroelectrics, and Frequency Control, vol. 40, No. 4, Jul. 1993, pp. 283-292.
Goldberg, et al., "In Vivo Imaging Using a Copolymer Phased Array", Ultrasonic Imaging 14, 1992, pp. 234-248.
O'Donnell, et al., "Efficient Synthetic Aperture Imaging from a Circular Aperture with Possible Application to Catheter-Based Imaging", IEEE Transactions On Ultrasonics, Ferroelectrics, and Frequency Control, vol. 39, No. 3, May 1992, pp. 366-380.
Lutolf, et al., "Ultrasound Phased-Array Scanner with Digital Echo Synthesis for Doppler Echocardiography", IEEE Transactions On Ultrasonics, Ferroelectrics, and Frequency Control, vol. 36, No. 5, Sep. 1989, pp. 494-506.
Herment, et al., "High-Resolution, Reflection Mode Tomographic Imaging Part I: Principles and Methods", Ultrasonic Imaging 11, 1989, pp. 1-21.
Song, et al., "A New Digital Phased Array System for Dynamic Focusing and Steering with Reduced Sampling Rate", Ultrasonic Imaging 12, 1990, pp. 1-16.
O'Donnell, et al., "Phase Aberration Measurements in Medical Ultrasound: Human Studies", Ultrasonic Imaging 10, 1988, pp. 1-11.
Herment, et al. "High-Resolution, Reflection Mode Tomographic Imaging Part II: Application To Echography",

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for coherent image formation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for coherent image formation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for coherent image formation will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-213914

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.