Diagnostic medical ultrasonic imaging method and system for selectively processing harmonic and fundamental image information
February 22, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesUltrasonic spectral contrast imaging Ultrasound imaging system employing phase inversion subtraction to enhance the image Method and apparatus for coherent image formation Method and apparatus for receive beamformer system Ultrasonic harmonic imaging system and method Ultrasonic imaging method with multiple pulse cancellation Two pulse technique for ultrasonic harmonic imaging Method and apparatus for acoustic subtraction imaging using linear and nonlinear ultrasonic images Patent #: 6010456 InventorsApplicationNo. 255072 filed on 02/22/1999US Classes:600/443Anatomic image produced by reflective scanningExaminersPrimary: Jaworski, Francis J.Attorney, Agent or FirmInternational ClassA61B 008/00AbstractA diagnostic medical ultrasonic imaging method and system form first and second signals as a function of the Nth power of the absolute value of first and second ultrasound receive signals. These receive signals are associated with respective first and second transmit pulses that differ in phase and are both associated with overlapping or nearby regions of a subject. A combined signal is formed as a function of the difference between the first and second signals. The low pass component of the absolute value of this combined signal is then applied to an image processor. This low pass component, depending upon the value of N, can correspond to the second harmonic component of the combined receive signals, to the product of the fundamental and second harmonic components of the combined receive signals, and other combinations of fundamental and harmonic components. | |
