Systems and methods for removing noise-induced bias in ultrasound blood flow imaging

A technology of blood flow and noise, applied in the fields of ultrasound/sonic/infrasonic Permian technology, ultrasound/sonic/infrasonic diagnosis, ultrasound/sonic/infrasonic image/data processing, etc. Bad question

Pending Publication Date: 2021-04-30
MAYO FOUND FOR MEDICAL EDUCATION & RES
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Problems solved by technology

However, high frame rate ultrasound imaging is usually achieved by transmitting unfocused or weakly focused ultrasound waves, such as plane waves and divergent waves, and thus the signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) may deteriorate quickly, especially in the mid-depth range of the image

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  • Systems and methods for removing noise-induced bias in ultrasound blood flow imaging
  • Systems and methods for removing noise-induced bias in ultrasound blood flow imaging
  • Systems and methods for removing noise-induced bias in ultrasound blood flow imaging

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[0025] Described herein are systems and methods for removing noise-induced bias from power Doppler images to achieve improved contrast in microvascular images. In general, the systems and methods described in this disclosure can significantly and effectively suppress noise in blood flow images, and thus improve the signal-to-noise ratio ("SNR") and contrast-to-noise ratio ("CNR") of blood flow imaging techniques. The systems and methods described in this disclosure may be beneficially applied to ultrafast ultrasound imaging techniques (eg, plane wave-based or divergent wave-based ultrasound imaging techniques) for noise reduction purposes.

[0026] In one example, noise can be suppressed by exploiting the properties of uncorrelated noise in ultrasound images from data acquired at different transmission angles or synthesized. In another example, noise can be suppressed due to lack of correlation between adjacent ultrasound images, whereas blood flow signals are correlated given...

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Abstract

Systems and methods for removing the bias induced by noise from power Doppler images to achieve improvements of microvessel image contrast are provided. In one example, the noise-induced bias can be suppressed by utilizing the characteristics of uncorrelated noise in the ultrasound image from data acquired or compounded at different transmitting angles. In another example, the noise-induced bias can be suppressed due to the lack of correlation between adjacent ultrasound images. These example implementations may also be combined, as will be described below.

Description

[0001] Cross References to Related Applications [0002] This application claims a U.S. provisional patent entitled "SYSTEMS AND METHODS FOR REMOVING NOISE-INDUCED BIAS INULTRASOUND BLOOD FLOW IMAGING," filed July 19, 2018 Priority to Application Serial No. 62 / 700,424, which is hereby incorporated by reference in its entirety. [0003] A Note About Federally Funded Research [0004] This invention was made with government support under CA214523 awarded by the National Institutes of Health. The government has certain rights in this invention. Background technique [0005] The emergence of ultra-fast ultrasound imaging has greatly promoted the development of high frame rate blood flow imaging. Using ultra-fast ultrasound imaging can acquire a large number of Doppler ensembles in a short period of time, which greatly improves the Doppler sensitivity of blood flow in small vessels. The rich spatiotemporal information provided in high frame rate imaging can also benefit the ...

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): A61B8/06A61B8/08G01S15/89
CPCA61B8/06A61B8/5253A61B8/5269G01S15/8995G01S15/8979A61B8/488G01S15/8997G01S15/8927A61B8/483G01S15/8981G01S7/52085G01S15/8915A61B8/5207
InventorJ·D·奇萨思科陈式高黄成武宋鹏飞A·曼杜卡
OwnerMAYO FOUND FOR MEDICAL EDUCATION & RES