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Method and system for coded excitation imaging by impulse response estimation and retrospective acquisition

A technology of impulse response and coding excitation, which is applied in related system fields and can solve problems such as the reduction of contrast resolution

Active Publication Date: 2018-01-19
微拉声学公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with the distributed scattering characteristic of ultrasound imaging, clutter caused by pulse compression sidelobes, and cross-channel correlations lead to reduced contrast resolution

Method used

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  • Method and system for coded excitation imaging by impulse response estimation and retrospective acquisition
  • Method and system for coded excitation imaging by impulse response estimation and retrospective acquisition
  • Method and system for coded excitation imaging by impulse response estimation and retrospective acquisition

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Embodiment Construction

[0034] In the following description, certain specific details are set forth in order to provide a thorough understanding of various disclosed embodiments. One skilled in the relevant art will recognize, however, that the embodiments may be practiced without one or more of these specific details, or with other methods, components, materials, etc. In other instances, well-known structures or components, or both, associated with ultrasound imaging discussed herein have not been shown or described to avoid unnecessarily obscuring the description of the embodiments.

[0035] Unless the context requires otherwise, throughout the ensuing specification and claims, the word "comprise" and variations thereof (such as "comprises" and "comprises") are to be construed in an open, inclusive sense, i.e. "including, but not limited to". The foregoing explanations also apply to the words "comprising" and "having".

[0036] Reference throughout this specification to "one embodiment" or "an em...

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Abstract

A method that includes transmitting coded waveforms simultaneously on multiple elements for several frames, constructing a first multi-input, single output (MISO) system from the codes to model transmit-receive paths, solving system and RF data observation by linear model theory, giving an IR set for the medium, and applying the estimates to a secondary MISO system, constructed by analogy to the first, but with pulses convenient for beamforming in the form of a focused set of single-cycle pulses for ideal focused reconstruction.

Description

[0001] Cross References to Related Applications [0002] This application claims priority under 35 U.S.C. §119(e) to U.S. Provisional Application No. 62 / 141,749, filed April 1, 2015, the entire contents of which are incorporated herein by reference. technical field [0003] The present disclosure relates to methods for encoding arbitrary waveforms into sequences suitable for controlling a tri-state RF ultrasound transmitter under various fidelity criteria, and to related systems. Background technique [0004] Coded pulse excitation offers the opportunity to design waveforms with large time-bandwidth products, a means of improving signal penetration while maintaining the resolution of coherent imaging. However, with the distributed scattering characteristic of ultrasound imaging, clutter caused by pulse compression sidelobes and cross-channel correlations lead to reduced contrast resolution. Contents of the invention [0005] The present disclosure relates to systems and p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/00A61B8/06A61B8/08A61B8/14B06B1/02G01F1/66G01S15/89
CPCA61B8/06B06B1/0215B06B2201/76G01S15/8959G01S15/8979G01S15/8997G01S7/52077G01S15/8927G10K11/346G01S7/52093G01S7/52047A61B8/14A61B8/4483A61B8/485A61B8/488A61B8/5207A61B8/5276G01S7/5202
Inventor 约翰·A·弗林劳伦·S·弗路格拉斯
Owner 微拉声学公司
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