Region of interest positioning for longitudinal monitoring in quantitative ultrasound

A region of interest, ultrasound technology, applied in the direction of sound wave reradiation, ultrasound/sonic wave/infrasonic wave diagnosis, application, etc., can solve the problems of subjective and inaccurate ROI matching, unreliable diagnosis or prognosis, etc.

Pending Publication Date: 2020-12-29
SIEMENS MEDICAL SOLUTIONS USA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Matching of ROIs over time or across different examinations can be subjective and inaccurate
Therefore, comparison of QUS biomarkers is less reliable in terms of diagnosis or prognosis

Method used

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  • Region of interest positioning for longitudinal monitoring in quantitative ultrasound
  • Region of interest positioning for longitudinal monitoring in quantitative ultrasound
  • Region of interest positioning for longitudinal monitoring in quantitative ultrasound

Examples

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Embodiment Construction

[0015] Provides automatic ROI placement in shear wave or other quantitative imaging. Indicators for ROI placement from previous exams are used to help place ROIs in the current exam, thereby providing QUS measurements of the same anatomy in different exams. This indicator is added to the image or different from the ROI shown on the image. This indicator helps locate FOV and ROI. Provides ROI localization for longitudinal monitoring using QUS. In order for ultrasound to be useful for monitoring, the process for finding and measuring the same anatomical region is automated.

[0016] In one embodiment, an indicator based on a measure of similarity between the current view and the reference view is used for ROI positioning. Indicator and correlation techniques are used to automate the process of finding the same anatomical location.

[0017] figure 1 One embodiment of a method for ROI localization in quantitative ultrasound imaging using an ultrasound scanner is shown. For l...

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Abstract

In order to carry out longitudinal monitoring of a patient by using quantitative ultrasound (QUS), one or more indicators of region of interest (ROI) position relative to the patient and one or more images from a past QUS imaging for the patient are stored. The indicator is add to an image with the ROI. For the subsequent QUS imaging of the patient, the indicator is used to position the ROI. In QUS monitoring, a same or fixed anatomy is monitored from examination-to-examination based on the placement of the ROI and by using a displayed indicator for the previous placement.

Description

Background technique [0001] The present invention relates to quantitative ultrasound imaging. In quantitative ultrasound (QUS) imaging, the detected information is further processed to quantify biomarkers or properties of the imaged tissue. Not just providing a B-mode image of the tissue, but also imaging the properties of that tissue. For example, ultrasound imaging is used to calculate shear wave velocity in tissue. Other examples include strain, attenuation, or backscatter metrics. [0002] For quantitative ultrasound imaging, users typically locate regions of interest (ROIs) in B-mode images. To avoid delays or processing complexities for quantification over the entire field of view (FOV) of a B-mode image, a user-localized ROI defines the tissue region used for quantification. [0003] QUS biomarkers hold promise not only for screening and diagnosis, but also for monitoring disease progression or response to treatment based on lifestyle, diet and / or drug interventions...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/00
CPCA61B8/465A61B8/485A61B8/5292A61B8/42A61B8/4218A61B8/4245A61B8/585G01S7/52036G01S7/52042G01S7/52063G01S7/52073G01S7/52098G01S15/8915G16H30/40A61B8/461A61B8/469A61B8/5215G01S15/8906G06T7/0012G06T2207/10132
Inventor Y.拉拜德J.本森
Owner SIEMENS MEDICAL SOLUTIONS USA INC
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