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Ultrasound 3d imaging system

An imaging system, ultrasonic technology, applied in the direction of radio wave measurement system, acoustic wave diagnosis, ultrasonic/sonic wave/infrasonic wave diagnosis, etc., can solve the problem of image quality compromise

Inactive Publication Date: 2011-10-12
TERA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The power required to operate such a system has resulted in a compromise in image quality when analog phase shifting techniques are used with digital delayed beamformers

Method used

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Embodiment Construction

[0046] The purpose of the beamforming system is to focus the signal received from the image point onto the transducer array. By inserting appropriate delays in the beamformer to the wavefronts that are propagating in a particular direction, signals arriving from the direction of interest are summed coherently, while those from other directions are summed incoherently or are delete. For real-time three-dimensional applications, separate electronic circuits are necessary for each transducer element. Thus, using conventional implementations, electronic components quickly become bulky and expensive as the number of components increases. Traditionally, the cost, size, complexity, and power requirements of high-resolution beamformers have been avoided with a "circumvention" system approach. For real-time, three-dimensional, high-resolution ultrasound imaging applications, an electronically controlled two-dimensional beamforming processor based on a delay-and-sum computer algorithm...

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Abstract

The present invention relates to an ultrasound imaging system in which the scan head either includes a beamformer circuit that performs far field subarray beamforming or includes a sparse array selecting circuit that actuates selected elements. When used with second stage beamforming system, three dimensional ultrasound images can be generated.

Description

[0001] related application [0002] This application is a continuation-in-part of U.S. Patent Application No. 12 / 286,555 filed on September 30, 2008 and claims the title "Ultrasound 3D Imaging System" to Chiang et al. Priority to U.S. Patent Application No. 61 / 192,063 of the title application. This application also claims priority to US Patent Application No. 11 / 474,098, filed June 23, 2006, and International Patent Application No. PCT / US2007 / 014526, filed June 22, 2007. The entire content of the aforementioned application is hereby incorporated by reference. Background technique [0003] Medical ultrasound imaging has become the industry standard for many medical imaging applications. The technology was developed to provide three-dimensional (3D) images of internal organs and tumors using a two-dimensional (2D) transducer array. These systems require thousands of beamforming channels. The power required to operate such a system has resulted in a compromise in image qualit...

Claims

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Application Information

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IPC IPC(8): A61B8/00G01S15/89
CPCA61B8/00A61B8/4444A61B8/4472A61B8/4483A61B8/483G01S7/52082G01S7/52095G01S15/8925G01S15/8927G01S15/8959G01S15/8993G10K11/346
Inventor A·羌贺兴柏W·翁N·伯杰
Owner TERA TECH CO LTD
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