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Ultrasonic imaging of acoustic attenuation coefficients with confidence estimation

A technology of attenuation coefficient and ultrasonic imaging system, which is applied in the directions of ultrasonic/sonic/infrasonic image/data processing, ultrasonic/sonic/infrasonic diagnosis, ultrasonic/sonic/infrasonic Permian technology, etc. Differences in attenuation with humans and other issues

Pending Publication Date: 2021-09-03
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] While nominal curves can provide average characteristics for specific tissue types, they cannot further differentiate each specific tissue type, such as differences in attenuation between individuals due to differences in tissue density, composition, location, and other properties

Method used

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  • Ultrasonic imaging of acoustic attenuation coefficients with confidence estimation
  • Ultrasonic imaging of acoustic attenuation coefficients with confidence estimation
  • Ultrasonic imaging of acoustic attenuation coefficients with confidence estimation

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Embodiment Construction

[0009] now refer to figure 1 , shows in block diagram form an ultrasonic diagnostic imaging system constructed in accordance with the principles of the present invention. A transducer array 12 is provided in the ultrasound probe 10 for transmitting ultrasound and receiving echo information. Transducer array 12 may be a one- or two-dimensional array of transducer elements capable of scanning in two or three dimensions, eg, in elevation (3D) and azimuth. The transducer array 12 is coupled to an optional microbeamformer 14 in the probe that controls the transmission and reception of signals by the array elements. Microbeamformers are capable of beamforming at least part of the signals received by groups or "patches" of transducer elements, as described in US Pat. et al.) described. The microbeamformers are coupled by sounding cables to a transmit / receive (T / R) switch 16, which switches between transmit and receive and protects the main beamformer 20 from high energy transmit s...

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Abstract

An ultrasound system produces maps of acoustic attenuation coefficients from pulse echo signals. Maps are produced using different attenuation coefficient or slope estimation methods, and a plurality of maps from different estimation methods are compounded to produce a final attenuation coefficient map. Confidence maps may also be produced for one or more attenuation coefficient maps, and the confidence map displayed or its measures used to determine weighting for the compounding process.

Description

technical field [0001] The present invention relates to ultrasound imaging systems, and in particular, to imaging of sound attenuation coefficient maps with confidence estimates. Background technique [0002] Pulse-echo ultrasound imaging systems emit beams of acoustic energy onto the image field. As each transmitted beam encounters acoustic reflectors and tissue boundaries, some of the transmitted energy is reflected back to the transmitting transducer and received as an echo. In this way, as the ultrasound beam energy travels deeper into the body, a series of echoes are received from deeper and deeper tissue. The amplitudes of the echoes are detected and displayed corresponding to their time of reception, which corresponds to the depth at which they were received. The display thus reveals features of tissue structures within the body. However, beam energy is continuously attenuated as it passes through tissue and encounters acoustic scatterers along the beam's path. Th...

Claims

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Application Information

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IPC IPC(8): G01S7/52A61B8/08
CPCG01S7/52036G01S7/52071A61B8/5207A61B8/5253A61B8/488A61B8/463
Inventor 黄圣文谢华M·M·阮C·阿马多尔卡拉斯卡尔J-L·F-M·罗伯特V·T·沙姆达莎尼
Owner KONINKLJIJKE PHILIPS NV