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Method and system for generating a synthetic elastrography image

A technology of elastography and ultrasound elastography, applied in image enhancement, image analysis, image data processing, etc.

Pending Publication Date: 2022-01-28
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, to assess shear wave velocity, either stroboscopic techniques or ultrafast imaging using frame rates around 1000 Hz must be employed

Method used

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  • Method and system for generating a synthetic elastrography image
  • Method and system for generating a synthetic elastrography image
  • Method and system for generating a synthetic elastrography image

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Embodiment Construction

[0073] figure 1 The process of B-mode ultrasound is schematically depicted: an ultrasound probe 2 , typically comprising an array of ultrasound transducers, transmits a series of ultrasound pulses 3 , for example as a compressed wavefront, into a region of interest 4 , typically in a human or animal body. By recording the echoes and performing suitable signal processing such as beamforming, a B-mode ultrasound image 5 of the region of interest is acquired. This can be done at high frame rates, especially for 2D images.

[0074] figure 2 Conventional SWE imaging is illustrated. The ultrasound probe 2 generates a sequence of acoustic radiation force "push" pulses 6 into the region of interest 4 . The "push" pulse results in a transversely traveling shear wave 8 which is imaged ultrafast by the ultrasound probe 2 and recorded using an additional ultrasound transmit pulse 3 . The recorded echoes are transferred to a computing unit 10 which processes the ultrafast imaging reco...

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Abstract

The invention relates to a method for generating a synthetic elastography image (18), the method comprising the steps of (a) receiving a B-mode ultrasound image (5) of a region of interest; (b) generating a synthetic elastography image (18) of the region of interest by applying a trained artificial neural network (16) to the B-mode ultrasound image (5). The invention also relates to a method for training an artificial neural network (16)5 useful in generating synthetic elastography images, and a related computer program and system.

Description

technical field [0001] The present invention relates to a computer-implemented method for generating synthetic elastography images, a method for training an artificial neural network useful in generating synthetic elastography images from B-mode ultrasound images, a method for training artificial neural Network or second artificial neural network to provide a method of confidence map, and an associated computer program and system. Background technique [0002] Tissue elasticity or stiffness is an important marker in biomedicine, eg in cancer imaging or assessment of musculoskeletal pathology. Whether the tissue is firm or soft can provide important diagnostic information. For example, cancerous tumors are often stiffer than surrounding tissue, and liver stiffness is often indicative of various disease states, including cirrhosis and hepatitis. In order to image the elastic properties of tissue, it is necessary to record how it behaves when deformed. In ultrasound elastogr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/50G06N3/04G06N3/06G06N3/08A61B8/08A61B8/00
CPCG06T5/50G06N3/061G06N3/084A61B8/485A61B8/52A61B8/4483G06T2207/20084G06T2207/20081G06T2207/10132G06N3/045G06T11/006G06T2211/441
Inventor R·R·维尔德布尔R·J·G·范斯伦
Owner KONINKLJIJKE PHILIPS NV