Title: Time reversal and phase coherent music techniques for super-resolution ultrasound imaging

Abstract

Systems and methods for super-resolution ultrasound imaging using a windowed and generalized TR-MUSIC algorithm that divides the imaging region into overlapping sub-regions and applies the TR-MUSIC algorithm to the windowed backscattered ultrasound signals corresponding to each sub-region. The algorithm is also structured to account for the ultrasound attenuation in the medium and the finite-size effects of ultrasound transducer elements. A modified TR-MUSIC imaging algorithm is used to account for ultrasound scattering from both density and compressibility contrasts. The phase response of ultrasound transducer elements is accounted for in a PC-MUSIC system.

Inventors:

Huang, Lianjie; Labyed, Yassin

Issue Date:

2018-05-01

Research Org.:

Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1439586

Patent Number(s):

9955944

Application Number:

14/339,791

Assignee:

Los Alamos National Security, LLC (Los Alamos, NM)

Patent Classifications (CPCs):

A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61B - DIAGNOSIS

G - PHYSICS G01 - MEASURING G01S - RADIO DIRECTION-FINDING

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A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61B - DIAGNOSIS

A61B8/0825 - {for diagnosis of the breast, e.g. mammography}
A61B8/13 - Tomography
A61B8/5207 - {involving processing of raw data to produce diagnostic data, e.g. for generating an image
A61B8/5253 - {combining overlapping images, e.g. spatial compounding}

G - PHYSICS G01 - MEASURING G01S - RADIO DIRECTION-FINDING

G01S15/8915 - {using a transducer array}
G01S15/8977 - {using special techniques for image reconstruction, e.g. FFT, geometrical transformations, spatial deconvolution, time deconvolution
G01S15/8997 - {using synthetic aperture techniques}
G01S7/52046 - {Techniques for image enhancement involving transmitter or receiver
G01S7/52095 - {using multiline receive beamforming}

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DOE Contract Number:  

AC52-06NA25396

Resource Type:

Patent

Resource Relation:

Patent File Date: 2014 Jul 24

Country of Publication:

United States

Language:

English

Subject:

47 OTHER INSTRUMENTATION